Tagged: liquid cooled

Radical Racebike: 1975 Bimota YB1 350GP for Sale

1975 Bimota YB1 L Side

The Bimota YB1 wasn’t originally called the YB1 because it predated Bimota’s traditional naming conventions. Internally, it was known as the Yamaha-Bimota Gran Prix ’74, but later became known as the YB1, the very first Yamaha-engined Bimota. In fact, it was the very first series-production Bimota, if something built in numbers this small can be considered “production.” Powered by either the 250cc or 350cc version of the TZ’s liquid-cooled parallel-twin engine, just twelve of these distinctive and very fast little machines were built.

1975 Bimota YB1 R Side Naked

The bike’s racing success helped pave the way for Bimota’s later, more well-known racing and road bikes and helped to establish BiMoTa as a manufacturer. It’s quite literally possible that, without the YB1, there’d be no Bimota today at all and the face of motorcycling might look very different.

1975 Bimota YB1 R Side Front

Built between 1974 and 1975, the bike included Bimota’s signature racing touches: one-piece bodywork that allowed easy maintenance, a stiff and lightweight tubular frame, adjustable ergonomics, and even a clever eccentric chain adjuster.

1975 Bimota YB1 Tank

From the original eBay listing: 1975 Bimota YB1 350GP for Sale

VIN 12

This is an iconic superare YB1, the first race Bimota with Yamaha TZ competition engine. It was also the second Bimota race model ever built (the first was the unique Paton Bimota) and definitely the first “true” racing Bimota as this model was raced by important names as Lucchinelli, Riondato, Ceccotto, Gallina, etc. This frame was built to be fitted with both Yamaha options 250cc and 350cc, this one is a 350cc. Only 12 units were built making this model extremely rare, desiderable and collectable.

This bike was last paraded at the main Italian event in 2012, kept in collection completely dry since. The paddock stand in pics is coming with the bike.

Race, parade and collect!

1975 Bimota YB1 Engine

Another one from our new best friend “Gianluca” who always seems to have the very coolest bikes for sale! Bidding is up to just $4,550 with the reserve not met and several days left on the auction. I honestly don’t know what this little exotic really should be worth, but it’s one of just twelve built, looks wild, and as an early Bimota is certainly historically significant. The YB1 was available as a kit bike, and supposedly very few were sold with this distinctive bodywork, making this zero-mileage example even more of a unicorn, literally ground zero for the modern sportbike.


1975 Bimota YB1 R Side

Origin of the Species: 1973 Yamaha TZ750 Prototype Road Racer #001

1973 Yamaha TZ750 L Side Front

The second of three very rare Yamaha TZ750 race bikes available this past week, this 1973 model is claimed to be a rare prototype machine. Fans of both ClassicSportBikesforSale.com and RareSportBikesforSale.com have proclaimed all three of these machines to be overpriced, but you can’t argue that they are very cool and very valuable motorcycles regardless of their asking prices. Yamaha’s TZ750 was all brawn and no brains, a power-mad beast of a bike that packed 140hp into a sub-400lb package good for 185mph, with basically terrifying handling when it was introduced. But that power came with reliability, and the TZ dominated AMA racing for years in spite of its lethally bad manners.

1973 Yamaha TZ750 L Side Engine3

This example is supposedly a “prototype” numbered #001, although I’d definitely want to consult with a TZ750 expert before plunking down my hard-earned cash. It’s certainly in impressive cosmetic condition and will undoubtedly look amazing on display. Early TZ’s used a twin-shock rear suspension as seen here, although later bikes moved on to a more modern monoshock set up that vastly improved handling from “scary” to “less scary” as the bike struggled to cope with increased power from the significantly revised powerplant that went from 700cc’s in early bikes to the full 750cc’s in the name.

1973 Yamaha TZ750 Bare Engine

From the original eBay listing: 1973 Yamaha TZ750 Prototype #001 for Sale

This is the rare only one built by the Yamaha Race department. It was finished in 1973 for Kel Caruthers to inspect and make final changes for the completion of the production TZ700/750 for release in 1974 for Daytona and European distribution.

What you see are some of the salvaged parts that were intercepted on the way to the crusher and torch. The main part being the frame and swing-arm stamped 409-100001.

This bike remained in the hands of factory rider Sadeo Asami until it was returned to Yamaha USA in the late 70`s. 

I sat in storage until 2012 when I was able to purchase the parts. A good friend and I spent 3 years bringing it back to as last race condition and another year to where it is now.

This is the bike that changed racing history.

1973 Yamaha TZ750 L Side Engine2

I would be curious, and I’m sure the seller can tell you, whether or not it runs. From the description, it sounds as if it does. This would obviously make a beautiful display piece and centerpiece to a collection, but racing machines I feel should always be kept in running condition, even if it’s only for parade laps and demonstrations. The Buy It Now price is set at $78,000 which, as stated previously, is very high for a TZ750. They’re pretty rare, but 600 were made and, even accounting for the attrition that naturally occurs during racing, it’s possible to find these regularly circling tracks in vintage racing events.

Regardless, I’m happy to see the bike offered up for sale, so we can all drool over it and think about how many extra kidneys we’d need to grow in order to be able to afford it….


1973 Yamaha TZ750 L Side

Collectible Racer: 1973 Yamaha TZ350A for Sale

1973 Yamaha TZ350 L Side

Jeez, as often as these TZ’s have been popping up of late, you’d think they were common or something… Yamaha’s TZ350’s were pure racing motorcycles and had no roadgoing derivatives directly related to them. Which is a shame: “race bikes for the road,” while often very narrowly-focused, lousy for roadtrips, and entirely lacking in passenger accommodations for that cute girl you met at the bar last night, can be terrific Sunday morning canyon-dance partners, allowing owners to get more use out of them than they otherwise might when restricted to track-only riding.

1973 Yamaha TZ350 R Front

The affordable TZ350A introduced water-cooling to Yamaha’s over-the-counter two-stroke parallel twin GP machine, and the bike evolved progressively through to the final TZ350H model. “A” versions like the one for sale this week featured a dual-shock rear end, although later versions changed to a monoshock rear suspension.

1973 Yamaha TZ350 Dash

The twin made a smoking 64bhp and at under 300lbs dry, these were competitive right out of the box, although they were bikes without a class here in the USA and generally were forced to run against larger machines.

1973 Yamaha TZ350 Engine

From the original eBay listing: 1973 Yamaha TZ350 for Sale

Up for auction is a piece of Yamaha, Daytona, and AMA racing history! This 1973 Yamaha TZ350A was ridden by rookie expert Jim Evans to third place in the 1973 Daytona 200 for sponsor/owner/tuner/dealer Mel Dinesen. (Don Emde had won the 200 outright for Dinesen the year prior aboard a Yamaha TR3.) This privateer TZ350 finished the 1973 200 behind World Champions Jarno Saarinen and Kel Carruthers on Yamaha factory team TZ350s in what was the first major race for Yamaha’s new water cooled TZ family of GP series production racing bikes. The new TZ350s outpaced and/or outlasted both four and two-stroke machines of up to 750cc in that year’s contest.

The late Stephen Wright found and restored this bike in the early-90s, before selling it into two successive private collections. Wright is well known as having been curator/chief restorer for Steve McQueen’s motorcycle collection, starting with work for McQueen’s Solar Productions in the 1960s, as well as for his excellent books on motorcycles and motorcycle racing in the United States. His restorations are extremely well-regarded. 


This TZ350A has been in two private (climate controlled) collections since being found and restored by Stephen Wright in the early 1990s. In the interest of full disclosure, there is some minor shelf wear (a few paint chips and a scrape along the primary side of the fairing from a tie down buckle during shipping), the rubber band mount for the oil temp gauge is split, and the Goodyear racing slicks show some dry cracking on the sidewalls, as you would expect from age. That said, the bike remains very clean. The paint finish is excellent and the colors are sharp. Take a look at the photos to see for yourself. The nice thing about the bike is that the 20+ years since the restoration have given the bike just the right amount of patina. Overall, this bike is stunning and beautiful; people gravitate to it.

The bike was mechanically and cosmetically restored to full working order and correct appearance, then prepared for collector ownership (i.e. all fluids were drained and the engine was fogged). Any attempt to run the machine should follow a full recommissioning. The brakes, clutch, and throttle all operate as they should.  

1973 Yamaha TZ350 L Rear

There are four days left on the auction, with bidding north of $15,000 and the Reserve Not Met. This is in absolutely gorgeous condition, considering it’s basically an ex-race bike. There are a few minor scrapes that, to me, don’t detract at all. And while discs are generally better and more reliable means for stopping, that huge front drum and drilled rear hub are beautifully sculptural.

It’s obviously not in ready-to-run shape, so if you’re looking for a bike to ride in AHRMA events, you’re better off looking elsewhere. If you’re looking for a beautiful collector’s item that has been properly prepared for a life on display, this could be your bike.


1973 Yamaha TZ350 R Side

1983 Honda VF750F Interceptor

The first time I remember seeing the Honda Interceptor was in my high school parking lot. More specifically the bicycle parking area. The owner had just committed to the Army and taken any money he had saved up, and bought the newest (at the time) fastest motorcycle he could get. Then rode around town with a t-shirt, jeans, Army surplus gloves, and no helmet. Not sure if he ever made his commitment to the Army. When I saw this 1983 Honda Interceptor on eBay, I saw jeans and a t-shirt, no helmet, riding a wheelie, (or the best at the time) out from between bicycles, into my high school parking lot.

 From the seller

Beautiful survivor VF750F all original. Excellent condition, I would give it somewhere between an 8 – 8.5 on a scale of 1-10 as far as cosmetic condition goes considering its age and I very picky when it comes to things like that. I have taken photos of any cosmetic blemishes I could find which are relatively minor. There is some discoloration and some light scratches on the exhaust pipes (more so on one side than the other) as well as around the instrument switches. There is a hairline crack in the tail piece. With those imperfections in mind, please also keep in mind that this bike has never been down or dropped. All of the bodywork is in excellent condition. The original paint on it is just beautiful. Very glossy with great luster. Please look at the photos carefully.

What you got back in 1983 was very special. With changes in AMA racing, you had to put a bike on the road that was similar enough to the one on the track to satisfy the sanctioning body. Oh and did it satisfy the buying public to. 86 water cooled horse power at 10,000 rpm from a 748cc V4 with DOHC and 4x30mm Kiehin carbs to get the rider and bike up to  138mph. Oh and  15mpg too. These performance numbers were helped by GP inspired fairing, controlled with a trendy at the time 16 inch front wheel and a single rear shock. These numbers were all generated without the 100rpm power band that the previous blue smoking superbikes limited you to.

More from the seller
As far as the mechanical condition of the bike goes I would give it close to a perfect 10. The carburetors have been rebuilt, cleaned, and synchronized by “old school carbs” of San Jose. The gel battery is new. All fluids, and I mean all fluids have been drained and replenished with fresh fluids. Brakes are fairly new as well. The gas tank has been professionally drained, cleaned and coated to prevent rust. 9,800 original miles. Runs better than new. Registered as non operational with the California DMV so no back fees. Clear California title.


The Honda Interceptor wasn’t only the first modern super bike that I saw, it was the first modern super bike that many people saw. With its integrated fairing, hugely over square engine, developing power through the whole rpm range, the VF750F was something new. It was what everyone looked to imitate, and what  everyone wanted to ride. If you want the original, this 1983 Honda Interceptor is ready for you and your money to part ways. BB

1975 AMF Harley-Davidson Aermacci RR250

What do you get when you combine the style of Italy, a manufacture in Wisconsin, the money from bowling alleys and a little smoke? You get a 1975 AMF Harley Davidson Aermacci RR250 two stroke. A World Champion motorcycle that dominated for 3 years and then disappeared. The seller says that it is museum quality, and offers a bill of sale from The Chandler Museum, so you get a good idea what the bike has been doing for the last few years.

From the seller

This is one of the only Road Race bike’s that Harley Davidson Won A World Championship with, they dominated until the Japanese caught up on the design, anyone looking knows the history, the bike has compression and spark, compliance fittings are dry rotted as is the tach mount(just a large o ring), does have tech stickers, not sure who raced it but it was raced, comes with the Bill Of Sale From the Chandler Museum, and a title. The front brake calipers are; Motor -Scrab-Mozzi

Walter Villa was the Harley Davidson factory rider who took the RR250 to three consecutive World Titles in 1974, 1975, and 1976, and a 350cc Title in 1976 as well. The first Title coincide with the first year that the RR got its water jackets. First put to work in 1971 the RR250 and its brother the RR350, were Works racers only, no companion bikes offered to the public. The first air cooled short stroke 250’s produced 50hp at 10,000rpm. The engine and transmission design was unique in that you could quickly disconnect the engine, and simply plug in another 250cc unit, or the 350cc unit.

In 1974 Aermacci added the water jacket and the power jumped to 58hp at 12,000rpm. This combined with a light 230lbs was a factor in Walter Villa’s victory. While looking into the RR, I found an interesting way to stop the bike. Unlike this RR250 offered up on eBay, the factory bikes had an internal disk wheel by Campagnolo. Only being able to look from the outside, I am still trying to figure out how this might work.

By 1975 Harley started to offer the RR to privateers, but had poor technical support, and a poor parts supply. It was about this time the Aermacci and Harley started a 500cc two stroke project. The plug was pulled by AMF, the money at Harley during this time, because road racing was not necessary to win AMA National Championship in the US. There was no incentive to put money into a discipline that would not generate money in the showroom.

With the emergence of the Japanese in the two stroke power struggle, and the cash conscious managers at Harley Davidson, this RR250 offered up on eBay is a window into The Motor Company history. With the purchase of Aermacci, the experiment that was Italian bikes in the land of Hogs, this 2-stroke smoke generator did not last long. But while it was on the track, 3 World Titles are not a bad resume. If you are looking for a Vintage racer, you will not find many like this. That is if you see any. BB

1975 Suzuki RE5

For Sale: 1975 Suzuki RE5

The 1970s was a decade of experimentation for many motorcycle companies. Honda moved the needle from two strokes to very complicated four cylinder four strokes, Ducati continued to evolve the Desmo valve actuation concept, Yamaha continued to beat the two stroke drum, and Suzuki wavered between two strokes and four, and went so far as to introduce a rotary as well. Of all of the novel bikes created in the 1970s, this one is perhaps the most novel; a Wankel-engined motorcycle for the masses.

Suzuki engineers stuffed a single rotor engine with a swept displacement of 500cc into a motorcycle chassis and sold it for a pittance compared to any other rotary of the day (Van Veen and Norton were the two other rotaries offered, and they were frightfully expensive). Still, the RE5 was more expensive than more “normal” counterparts, and failed to sell in large numbers. A 3 year model run saw relatively few changes (more on that later), and relatively few sales.

While Suzuki was able to succesfully mate the Wankel to a sporty motorcycle, they could not eliminate some of the inherent downsides of the rotary motor. First off, the Wankel is heavy, and the resultant 500cc bike outweighed any middle-weight and probably most liter bikes of the day. Part of this weight is due to the need for cooling. Check out the size of the radiator; rotaries run very hot and need robust cooling systems. Secondly, the fuel consumption of the Wankel is legendary – as America endured the oil embargo and rising gas prices, this became a concern. Combine high weight and high fuel consumption with relatively modest performance (the rotary is very smooth at high RPM but is not known for torque) along with a high sticker price and you have the makings for a classic showroom queen.

From the seller:
This is a good example of a very rare motorcycle. It is amazing how much power the Wankel rotary engine produces with just 500cc’s. I have ridden this bike around town a few times. It really runs great and man does it turn some heads. The bike is in such good running and riding condition you could ride it anywhere. It would make someone a good every day rider or you could just show it. You probably will be the only one in your town to own one. Bid with confidence, this is a very good and very rare motorcycle.

From a collector perspective, these are relatively rare motorcycles. They are not seen every day, either on the street or in auctions. Therefore, the desireability is pretty decent. These are complex motorcycles, and therefore the buyer would be cautioned to purchase the very best available if riding the bike is in the cards. Most two and four stroke mechanics are not totally familiar with the operation of the Wankel powerplant, which makes restoration a little more difficult, although by no means impossible.

Changes over the model years are very few. This is one of the earlier bikes, as seen by the pod-theme in the instrument cluster and tail light section. The last year bikes have conventional instrumentation and lights, as Suzuki attempted to boost sales by making the bikes appear a little bit more main stream. Unfortunately that failed, and the RE5 is now a collectable piece of history.

This bike looks to be in good condition, and is practically begging for a new home. Bidding interest has been very high, and the current bid sits at $4,000 – that is very low money for a very rare bike! For more information and your chance to bid on this rare wonder, click the link and jump over to the auction. Good luck, and tell ’em you found it on CSBFS!


Water Buffalo! 1974 Suzuki GT750

For Sale: 1974 Suzuki GT750 “Water Buffalo”

So you saw THIS POST from Brian on a great, zero mile GT500, and you thought to yourself that it was nice, but just too darn small. Not to worry, rabid CSBFS reader – size inflation is here!

Forget that tiny middle-weight, air-cooled twin cylinder. What we have here is a full 750cc of THREE cylinder, liquid cooled power. Expect in the neighborhood of 70 ponies for a good running bike – which is important because as displacement grew, so did the Suzuki waistband; the GT750 will be 550 lbs ready to ride.

From the seller:
Up for sale is my 1974 Suzuki GT750 Lemans Water buffalo Motorcycle. Clear title. This motorcycle runs real good. It has new tires, battery, front fork seals, front wheel bearings, spark plugs, chain, petcock seals, and seat cover. I bought this motorcycle last year to fix up and keep, however I could use the money more than the motorcycle. Oil and anti-freeze were changed. All parts, tires and fluids were changed 50 miles ago. Gas tank was cleaned, no rust inside. Gas tank was repainted, side covers are original paint, tank does not match exactly to the side covers. This bike came out of a barn and has some rust, please see pictures. The digital indicator works but is not original. There is no reserve.

These GT750s make wonderful collector bikes. They clean up very nicely, have a unique look and a great sound. The two-stroke motor is more accessible to the average mechanic, and parts are still available. Prices for pristine examples have also been on the rise – which means that you can ride AND invest at the same time!

This bike is available now with a $1,600 opening ask. This is a NO RESERVE auction, meaning that some lucky collector will have a new project by the time all is said and done. For your chance to own this significant piece of history, . Don’t forget to tell them that you found it on CSBFS!


Seeing Double: a pair of Kenny Roberts Yamaha RZ350s!

For Sale: 1984 Yamaha RZ 350 and 1985 Yamaha RZ 350

It’s really hard to miss these bumble bee yellow RZs. With their bright Yamaha / Kenny Roberts graphics and twin cylinder, 350cc two stroke engines and boy racer good looks, they continue to be very popular on this site and over on RSBFS. Here we have not one, but TWO nice examples of the breed.

This ’84 model bike is very clean, and looks to be quite original. It still has the original exhaust system, which has catalytic converters hidden in the exhaust pipes to help it squeek past the EPA. Those pipes are heavy and far from the optimal expansion-chamber shape for maximum power, so they are usually the first casualties when the modification man comes to visit. The bike has 17k on the odometer – which is more than we usually see on these bikes – but the condition is such that one wouldn’t really notice it; the cleanliness speaks for itself.

From the seller:
This is a clean original 3 owner1984 Yamaha R350 Kenny Roberts Edition in excellent condition with 17,490 miles and runs excellent. This bike is in 99.9% OEM condition, the only parts not OEM are the stainless steel braided lines, the carb vent hoses, fuel lines, a fuel shut off, and the “warning” sticker is missing from the wind screen. The carburetor was completely rebuilt with new internal parts including OEM metal reed valves, floats, hing pins, needle valve sets etc…. In addition to this, all of the coolant lines have been replaced, the rubber inserts in the foot pegs were replaced, I replaced the handle bars because the black coating was rubbed off, the rubber on the kick start was replaced, and any clamp or screw that was not perfect was also replaced. All replacement parts were Yamaha OEM parts and I have ALL of the parts that I took off the bike. The power valve controller along with the ignition module both work flawlessly. The bike speaks for itself. This bike runs strong and the engine has not been rebuilt. Every cable and hose is run properly per the Yamaha OEM spec and every zip tie, hose clamp, rubber bands, vent hose, etc is run per the Yamaha OEM specification. The fairings look beautiful, the tires are near new with virtually no wear. I will also include a 3 ring binder with the Yamaha micro fiche copied for this bike, the original manual under the seat, and the Yamaha Factory Service Manual.

The flaws: the coolant lens on the dash has 2 small cracks in it, the paint around the brake master cylinder is partially missing from coming in contact with the fluid, there are 3 small paint chips in the gas tank (one on each side and one on the top).

While there is no doubt that this RZ is in fine looking shape, there is an anomaly with the appearance of the engine: The cylinder jacket on this particular bike is unfinished, where on a stock RZ it is painted black. Often, this is the result of an engine teardown and top-end rebuild. The seller claims that a previous owner “cleaned” off the cylinder, but I will leave the judgement up to you. Aside from that issue and the loads of spare parts (seems odd to have that many mods and “spares” for a 99.9% OEM correct bike), this looks to be about one of the best RZs that I have seen in a while. For more information, more pictures, and a chance to own this beauty, check out .

The second RZ today is also a yellow/black model, but is from 1985. Not much changed on these bikes over the 2-year span of their existence in the US, but this bike is a little different than the first. Note the aftermarket exhaust system, which places the bike in a higher state of tune. If done correctly, the carbs will have also been re-jetted to take advantage of the pipes’ breathing ability. Note also that this one has a solo seat cover, which does give the bike a more sporting look.

From the seller:
The bike we are offering here came from a collector in his early 60s. He never raced the bike and always kept it out of the elements. It has 12,000 miles on it and runs and rides magnificently! Cosmetically it is beautiful. There are some small paint checks under the decals (very common for these). These are getting impossible to find that haven’t been trashed. Great investment!

This bike also looks great. The expansion chambers are a period correct modification, and really make a substantial difference in power. The solo seat was a factory/dealer available option if I recall correctly, and enhances the bike’s looks and value. This one also has some engine curiosities, however. Note on this ’85 bike the engine is painted entirely black – which is how it came stock – but the head has also been painted black. Normally, there is a white rectangle with the letters “YPVS” (Yamaha Power Valve System) in black, but here they have been painted over. Again, this points to a possible top-end rebuild somewhere along the line, although not a guarantee. Those interested should contact the seller directly for more information.

For more information, more pictures, and details on how to contact the seller, check out .

Since these were not terribly expensive machines, most of them have been thrashed within inches of their lives. It is nice to find two great examples still around. Prices are definitely on the rise for these little screamers, so if you are in the market to collect one this might well be your chance. Good luck and don’t forget to stock up on 2-stroke oil!!!


Classic Sportbike on the Cheap: 1987 Honda CBR600

For Sale: 1987 Honda CBR 600 Hurricane

Are you a little tired of seeing overpriced unobtainium? Are you looking for something “classic” but a little more realistic on the price? Devoted CSBFS readers, this post is for you! What we have today is a decidedly average (by today’s standard anyways) Honda sportbike: a 1987 CBR600 “Hurricane.”

So what is so special about a 24 year old sportbike? Well, this one introduced a number of firsts for Honda, and became the foundation for a top-tier middleweight model that continues to this day. Not too bad for something that you can pick up for less than the cost of a major service or refurb on one of those collector Ducatis…

The Hurricane was introduced during a period of massive sportbike development by the industry: Kawasaki knocked the world’s collective socks off with their 900 Ninja a few years earlier, and Suzuki rolled out the iconic GSX-R series during the same period. But the Hurricane was very special indeed, for it brought legitimate performance to the middleweight class – something that was lacking until it’s release. Here is a great Honda advert from this era (even the Ninja fears a hurricane), courtesy of a fantastic Honda resource, The CBR Forum

From the seller:

With the Hurricane, Honda created their first liquid cooled, inline four cylinder mid-sized sportbike. The CBR offered 750 performance (first 600 to break into the 12s bracket on the strip), top level components such as triple disk brakes and twin spar frame, and fully enclosed bodywork. This is still a striking motorcycle today.

This bike is not perfect; it has lived a relatively easy life, but shows some signs of wear. The mileage is not a concern (after all, it is a Honda), and the bodywork pieces – while not cheap – are still readily available. The Micron pipe is a nice addition, and I’m sure it helps the little 600 howl a bit at RPM.

The good news in all of this is the price: the opening ask is only $1,000, with reserve still in place. There is no telling what the reserve is set at, but the bike also has a BIN of $2,200. Somewhere between the two you will find a very well-priced piece of Honda history that can be ridden and enjoyed today. Now that is MY definition of a classic! For more information, . Good Luck!


Two for Tuesday! A pair of Yamaha RZ350s for sale!

For Sale: Yamaha RZ350 Kenny Roberts Edition

From two different parties come these two fantastic Red/White 1985 RZ350 two strokes!

The RZ 350 was the spiritual successor to the RD series two-stroke lineage. Powered by a parallel twin, liquid cooled two-stroke with Yamaha Power Valve System (YPVS), the RZ350 was originally released in Yellow/Black livery with Kenny Roberts’ signature on the fairing. Long regarded as the last major two-stroke imported into the United States, the RZ came stock with catalytic converters hidden in the twin exhaust pipes to try to squeeze the bike through EPA testing. As these pipes are heavy and impede performance, they are often the first to go; it is rare to find an RZ complete with the original OEM exhaust system.

In terms of performance, the RZ was admirable – but not exceptional. It struggled to keep up with period 550cc middleweights of the day. Modified bikes (porting, carbs and expansion chambers) pull far stronger than stock, however, making a well-tuned RZ a potent performer despite the diminutive displacement.

It all ended too soon: the EPA choked off the last of the factory two-strokes after only a short 2-year run in the US. While other countries and regions continued to enjoy the RZ (also badged as the RD350LC) for several more years, the RZ is relatively rare in the US. There were a fair number of them sold during their brief heyday, but to find one in decent condition today is difficult. As a result, values on the RZ continue to slowly rise. We have seen RZs on our sister site RareSportBikesForSale.com to go between $3500 and $9,000 depending upon conditionn.

Bike #1

The first RZ in today’s post is a 1985 Yamaha RZ 350 in the red/white color scheme. Sporting some minor modifications (note the steering damper on the left side as well as the aftermarket exhaust), this bike has less than 13k miles on the odometer and looks to be in very clean shape.

From the seller:
Great little bike,fast. Frame number JYA48H000FA012575,Engine number 1WT016510. Everything works. Clear title in hand.

You will see that the seller made a mistake and listed this bike as a “Kawasaki RZ350.” That apparently has not stopped the rabid RZ fans from finding it – there are already more than a dozen bids on the bike at the time of this writing! The current bid is just above $2,500 (reserve not met) and the BIN is set at $4,295. Both numbers are entirely reasonable for the current market. For more details on this bike and to see all of the pictures, click the link and jump over to the !

Bike #2

The second RZ in today’s lineup is another 1985 model in the same Red/While livery. Again, this bike has been modified from stock via the addition of Toomey exhaust – and likely has some jetting changes as a result. The aftermarket for the RZ was initially very big, and Toomey was one of the top brand pipes of the day. Sporting less than 12,000 miles on the clock, this RZ appears to be well taken care of and ready for a new riding partner.

From the seller:
Super Clean, all original 1985 Yamaha RZ350 Kenny Roberts Special. This bike has been carefully stored and maintained. The bike runs perfectly and carbs have recently been cleaned, you will not be unsatisified! There are only two small scratches on the bike that were diffuclt to photograph but are available upon request. The motorcycle has less than 12K miles on itand a Toomey Racing Pipe Kit. This 2-Stroke street machine is a thrill to ride and offers a ride that is difficult to equal.

This bike is also available now via auction, and it has also proven to be popular with bidders. At the time of writing, the bike was at $3,500 with no reserve – so this one is going home to some lucky buyer! There are more details and pictures available. Click the link and jump over to the !

We hope you enjoyed our Two for Tuesday selection this week. Don’t forget to tell ’em that you saw it on CSBFS!