Search Results for “Yamaha TZ750”

Yamaha March 23, 2016 posted by

Historic Stroker: 1977 Yamaha TZ750 for Sale

1977 Yamaha TZ750 R Side

It’s pretty much raining Yamaha TZ750s this week, with no less than three of these valuable and iconic racers available for sale, of the 600 or so that were built throughout production. It’s a bit older than the bikes we normally feature here on the site, but I think we can make an exception in this case. If you’re not familiar, the TZ750 was Yamaha’s two-stroke roadracing machine that was dominant in AMA racing during the 1970s.

1977 Yamaha TZ750 L Side Tank

Early bikes put out around 90hp but that jumped to 140 by the time 1977 had rolled around. That may not sound like much by today’s standards, but combined with the bike’s light 345lb weight and the primitive frame, suspension, and tire technology of the time, it was a true test of a rider’s skill to keep the beast pointed in a straight line, to say nothing of the curves…

1977 Yamaha TZ750 R Side Lower Fairing

The first bikes actually displaced 700cc and were reportedly built up from a pair of Yamaha’s racing 350s, a rumor borne out by the fact that some of the early TZ700s appear to have “347” stamped into the cases. But the later machines that debuted in 1975 shared no parts at all with the parallel twins. Apparently based around a bored-out 500cc Grand Prix engine, the TZ750 eventually moved from a twin-shock to a monoshock rear suspension for vastly improved handling. In any case, they were the bikes to beat throughout the 1970s, with both power and reliability. They just needed brave and skilled riders able to exploit them.

1977 Yamaha TZ750 R Side Engine

From the original eBay listing: 1977 Yamaha TZ750 for Sale

This is the 1977 Vesco/Romero/Busch Beer TZ750. Lots of history.

The engine cases in the bike now are an early spare. The original cases have just had a repair to the shift fork rod support boss and are ready to go back in the bike.

The original engine was also used as the rear engine in the Vesco land speed record streamliner.

Bike is sold as is and with Bill of Sale.

Some spares will also be included in the sale.

1977 Yamaha TZ750 L Side Engine

With a Buy It Now price of $95,000 I’d hope that “all the spares” would be included in the sale. Or that the seller would include a few more details regarding exactly what spares: when you’re trying to keep a forty year old racing machine running, every bit helps. That’s obviously a lot to pay for any motorcycle, but I’ve no doubt this thing is worth some serious cash, given its rarity and racing history.

-tad

1977 Yamaha TZ750 R Side Rear

Historic Stroker: 1977 Yamaha TZ750 for Sale
Yamaha March 5, 2013 posted by

Performance never gets old Part II: 1974 Yamaha TZ750 Factory Racer

TZ750_19

Back in July we brought you this great Yamaha racer from the same seller. Meticulously presented and one year newer, that bike sold for $28,000. Now we have a 1974 model that appears to be up to the same standard. Page through the pictures and start drooling.

TZ750_5 TZ750_12

I'm not sure if this would be a living room sculpture or a track day scalpel. Both seem a bit extreme, but since there is zero chance of turning this into a functioning street bike (and after all, why would you want to?) those are your two options. I think it would do a mighty fine job at either.

TZ750_10

From the seller:
Amazingly nice 1974 (first year) Yamaha Factory TZ750A racer
In correct 700cc specification.
Correct Yamaha 4- down exhaust pipes – with NO cracks. NOT reproductions !
Excellent professional paint on OEM Yamaha factory aluminum tank.
(Tank and seat were painted by a superb painter, who is an avid
Yamaha vintage racer. He knows the proper colors and techniques)

You will be proud to display this bike in your living room. I displayed
the bike for years in my professional offices where my clients could admire it.

The engine has been gone through, and the mechanic replaced
anything necessary for proper running. After restoration,
everything was coated with protective grease to
prevent corrosion while on display.

Although the engine has not been started in over 30 years, just this
last month - February - I put oil in the transmission and spun
the engine over. Everything was free, and the engine made
proper sparks at the proper time.

Unusually for a factory racer this age, the bike has the original carburetors,
with the correct “409” designation stamped into the bodies from the factory.
The correct “tuning” parts are in the carbs. (see photo's)
So, with a little pre-mix and filling with the proper transmission fluid,
the bike should be ready to start and run.

EVERY time I look at this bike, I don’t want to sell it !

The bike will come with a reprint of the Owner’s manual, workshop manual,
parts manual and some “memorabilia” about the bike that I have saved
through the years. I will also include special instructions
on the “first start” of the bike, etc.

Engine number: 409-000176
Frame number: 409-000262(?)
(Hard to read through the powder-coating)

TZ750_3

The seller has done a great job outlining the condition of the bike, and followed that up with numerous pictures. Who doesn't think this a totally gorgeous piece of kit? And if an ex-GP bike was to be on your bucket list, from what era would you pick? Sure, the 80s and early 90s GP bikes were a bit more showy, but these mid-70s machines just ooze of class.

TZ750_6

Your chance to bid on this GP wonder is Right Now. This auction just began, and the bidding has been very hot and very heavy. Already up to $20,255 with reserve still in place, this beauty has a BIN of $42,500 (!). Jump in now while you still have a chance. You can find all the details and pictures by clicking on the link and jumping over to the auction. Good Luck!

MI

Sport Bikes For Sale October 10, 2012 posted by

Morehead’s Ride: 1974 Yamaha TZ750A

For Sale: 1974 Yamaha TZ750A

Race bikes are in these days, as there is nothing quite like the fury and brutality of a historic and vintage guided missile. This TZ750 is a great example of the breed, complete with minor, yet significant history. These bikes are increasingly difficult to find in such pristine condition, although we have posted a few on RSBFS over the last few years.

Unlike felt-tipped pens applied to street bikes, ownership by a famous racer certainly improves the offering when it comes to used race bikes. In this case, the seller claims this was originally Steve Morehead's bike, and was ridden during practice sessions at Daytona and Talledega. While the "Findlay Flyer" is not particularly well known for his roadracing exploits, he was king of the privateers when it came to dirt track riding, posting 23 AMA National wins in his long and storied career.

From the seller:


1974 Yamaha TZ750A: Engine & Frame Number 409 - 000245.
HISTORY: The Yamaha was originally owned by Steve Morehead, the well known Ohio rider. It was raced in 1974 at Talledega and Daytona (practice only) and then acquired by Scot Erickson who also rode it in 1974 at Ontario Motor Speedway, California. In 1975 Scot rode it at Laguna Seca and in lesser races at later dates. He sold the bike to me in 1989 and it has been recently restored.

ORIGINALITY: Matching numbers are stamped on the engine and frame. Both the left and right cylinder barrels have "347cc 40900" cast on the rear. See early style piston with rearward inlet slots in picture 16. The wheel rims are stamped "Daido Japan 30 B 2.15 x 18 409F" & "Daido Japan 30 C 3.000 x 18 409R". Tires are Goodyear Motorcycle Road Racer 3.25-18 & 3.50-18.

The Yamaha was restored carefully following the TZ750 Parts List for authenticity and is original except for the following:

1) The rear of the frame has been modified for a "Laid Down" shock absorber installation. The footrest and rear brake lever mounts have been modified to suit. The shock absorbers are replacement Marzocchi 1 (N.2Kg/cm.cm.) The swing arm is unchanged.

2) The rear brake caliper mounting arm has been modified, as shown in picture 19.

3) Exhaust Pipes 1 & 2 and also 3 & 4 are each attached with small welded plates. See picture 13.

4) The fuel tank has been modified for "Quick Fill" and the installed petcock has (2) spigots.

5) The chain guard and rear fender are missing.

CONDITION: The Fairing, Fuel Tank, Seat, Front Fender, Frame and the black attaching parts have been professionally painted to the highest standard.

The seat was recently upholstered.

The Front and Rear Brake Master Cylinders have been serviced with new Cup & Master Cylinder Kits.

The right side rear wheel rim has a small crack and both tires are in poor condition.

The left side shock absorber spring has some scuff marks as shown in the last picture.

COMMENTS:

1) The mileage is unknown and the listed mileage is an approximation.

2) The cylinder bores were lubricated during storage.

3) I have never had the engine running.

4) Engine compression, gear selection and clutch operation are normal.

5) Engine coolant and hydraulic brake fluid are not installed.

6) A few "non-Yamaha" metric fasteners have been used.

7) The fasteners have not been correctly torqued and are not wire locked.

8) The Yamaha does not have a Title.

9) The Yamaha has been stored in temperature controlled conditions.

10) Please do not ask for a BUY IT NOW price. The Yamaha will run the duration of the auction.

This TZ750 really looks great in the pictures, and should do well at auction. Be warned that nicely restored vintage racers with some history do not come cheap; this bike is no exception. Bidding is just under the $20k mark with light action and reserve still in place. If past TZ750s in this condition are any indication, we should see a marked increase in price in the few days this auction has left. To check out all of the pictures and info, click the link and jump over to the auction. Good Luck!

MI

Sport Bikes For Sale May 23, 2012 posted by

Track Day Bravery: 1977 Yamaha TZ750 OW31

For Sale: 1977 Yamaha TZ750D OW31

I seem to be in a race bike mood these days. Maybe because the start of Summer is upon us, and I for one am looking forward to spending some of those sunny days at the track. Mind you my idea of a track day is on something a little more managable than this fire-breathing historic rocket ship, but for those of you with the skills, the next level of race track experience is beckoning.

This bike might look familiar to regular readers of RSBFS. You might recall this TZ500 in similar livery and listed by the same seller posted back in March (and still for sale at a pretty good reduction in price). Well today's TZ750 looks every bit as clean and cared for as the previous bike. Check out some of these pictures and see for yourself!

From the seller:
1977 YAMAHA TZ750 D MODEL OW31. THIS BIKE HAS HAD ONLY ONE OWNER SINCE 4/1978. IT USES A STOCK FRAME AND SWING ARM. IT DOES HAVE SOME PERIOD CORRECT MODIFICATIONS WHICH INCLUDE TOOMEY PIPES.36MM ELECTRON POWER JET CARBS,BOYSEN REED VALVES,LOCKHEED GRAND PRIX FRONT CALIPERS WITH DRILLED/SLOTTED ROTORS. ADDITIONALLY IT CURRENTLY HAS A 16 INCH DIAMETER FRONT RIM FOR FASTER TURN IN ON THE HIGH BANKS OF DAYTONA AND OTHER TRACKS.

THE BIKE HAS FACTORY PERIOD CORRECT REPLACEMENT CASES WITH 500 MILES ON REBUILD NO WELDING OR CRACKS

IT HAS BEEN ACTIVELY CAMPAIGNED BACK IN THE DAY AT DAYTONA, GROTTEN, BLACKHAWK, ROAD AMERICA, WENTZVILLE, MID OHIO, POCONO, LAUDON, LAGUNA SECA, ASPEN, LAJUNTA, HALLET, TEXAS WORLD SPEEDWAY, BRAINERD AND WAS WERA NATL CHAMPION IN 1980

THIS WOULD BE A GREAT BIKE TO ADD TO YOUR STABLE FOR RACE OR DISPLAY

These two-stroke GP bikes really represented the pinnacle of motorcycle road racing through the 1970s and 1980s, and finding a clean and loved racer from that era is becoming more and more difficult. What you see here is an opportunity that does not come through these pages often. If you have the space to display it or the, er, cajones to ride it - and you have the cash - then this is a "what are you waiting for?" kind of moment. For me, it is an opportunity to look, appreciate and drool just a little.

If I understand these two stroke engines correctly, the picture above is where the birds and other small mammals get sucked in by the 10,000 RPM whoosh of the intake. The picture below clearly shows where they come back out, but how do you determine which pipe they shoot out of?

All kidding aside, this is a beautifully preserved piece of racing history that can still be used and enjoyed (if that is the right term to use for riding it). This auction is on right now, and the BIN price is a lofty $49,999 or best offer. That is not a ton of money to pay for a bike of this quality, but it is certainly in rarefied air. Click on the link to check out all of the details, and then be sure and check back and share your thoughts. Do you want it, would you store it or would you ride it? Good Luck!

MI

Track Bikes For Sale April 9, 2012 posted by

Wow! Restored 1975 Yamaha TZ750

Wow!  Restored  1975 Yamaha TZ750

What else can you say but "Wow!"?  This bike simply speaks for itself and has some nice race history to add to its' allure.  With that in mind and the sellers good write up, I'm going to take a back seat and  let the seller and the pictures do the talking on this one.

From the auction:

This Historic TZ750 was built/modified as you see it back in the mid 1970's to be a top contender at Daytona, and was raced successfully in the 1976 & 1977 Daytona 200 by Cory Ruppelt. He finished in the money on this bike in 1976 being one of the few monoshocker 750's entered; only Factory works OW's and few privately modified bikes were monoshock equipped, as the Production 750's were only offered as twin-shock until 1977. Cory was one of the top pro-class privateers, with 5 Daytona 200's to his name, with a top finish of 14th in 1979.

 

 

C&J built 4 frames for Erv Kanemoto in the 70's; this is the 5th of 5 total TZ750 C&J road race frames constructed. C&J was one of the most highly regarded race winning builders, known for quality engineering and construction. Except for the Marvic magnesium wheels with Lockheed calipers, the Vesco fairing, and period USA Mack silencer chambers (still considered excellent upgrades), the rest of the bike is basically a 1975 TZ750B. The motor and monoshock service is recent, and the race compound Dunlops and RK racing chain are new; the Marvics were crack tested and refinished in 2010. The rest of this Kenny Roberts Replica including paint is "as-raced circa 1978" and still in exceptional condition for being 34 years old.As built by Ruppelt to his personal standards, this was one of the most competitive TZ750's of the era. This unique machine was raced until 1979, then hidden away in a private collection until being resurrected in 2009.

 

The engine cases are clean, with no cracks, repairs or damage from mechanical failure; race wear is present. The motor has approximately 100 miles since a full rebuild; the original chrome cylinders are still very nice! The frame has no cracks or repairs, and has the original finish. This is one of the best handling TZ750's outside of modern re-frames, and is a stable solid ride that could be put into "race ready" condition with a basic prep as it has been stored 3 years. The stock front master cylinder in need of a re-sleeve will be supplied at acquisition. Neither the frame nor engine have numbers.

You'll have to bring a little coin with you if are itchin for this piece of  TZ750 history.  Starting bid is a cool $32,500.  I don't claim to have my hand on the pulse of race bike sale prices but I'm going to guess this auction might have some legs. The TZ750 may be the most collectible of the TZ series.  All I know for sure is a 750cc two stroke scares me!

 

Tame the beast here.

 

Ian

 

Sport Bikes For Sale November 21, 2011 posted by

Yamaha’s Legendary TZ: 1975 Yamaha TZ750

Yamaha's Legendary TZ:  1975 Yamaha TZ750

I think you can argue the TZ750 is one of Yamaha's most iconic race bikes.  It takes you back in time to when bikes could truly be nasty beasts.  I think it is also a time when tire and chassis technology hadn't quite caught up with engine performance.   I've posted this info before but it is worth a second look if you haven't seen it before.  It is from a little comparison on Superbikeplanet.com:

Compare: 
the 1974 TZ700 and the 2000 R7 Superbike

TZ700 R7
Wheelbase 56.28" 56" 
Weight 345 lbs 356 lbs 
Front Tire  3.25 x 18 3.5 x 17
Rear Tire 3.5 x 18 6 x 17
Horsepower 145 173

How about the rear tire size!

Here is the auction info:

Here we have for sale a very rare 1975 Yamaha TZ 750 GP road race bike. This bike is in fantastic running condition. Yes, this TZ runs like you would not believe!! The 4 cylinder 750cc two stroke engine is all rebuilt and had virtually no time on it after a proper break in. The transmission and the chassis were rebuilt too but never raced after the rebuild. The bike runs perfectly down the street. The fairings are 1976 TZ 750 and same with the exhaust pipes. The bike also has the rare magnesium racing wheels on it. I have the new never mounted spoke wheels too. The bike is painted pearl white with red. The gauges are all in perfect working order. The rear shocks were cantilevered to improve the rear shock feel and performance. The bike has all original parts on it. This bike won mutiple races at Daytona back in its hay day. I have all of the documentation with this bike with all of its racing provenance. I have boxes of original TZ 750 parts. Two gas tanks, wheels, wind screens, etc. This is the definition of a vintage collectors race bike!  Its the best sounding 4 cylinder two stroke race bike you will ever hear.  Its a beautiful race bike with a ton of history and do not let this one get away! You wont find a more unique, rideable race bike.

She is looking good under the hood.  You basically have a restored bike that hasn't been used since.  How rare are the wheels the seller describes?  Here is some good tech talk on the TZ750 I purloined from an interesting blog on Yamaha race bikes:

To start off from the beginning, what Yamaha actually did was graft two 350 cc twin race engines and together they belted out 90 bhp from the crank with bore/stroke ratio was 64mm x 54mm. These twins were the TZ350. The crankcase itself was of ultra-lightweight magnesium construction, with the crankshaft having blanked off ends to keep the engine as narrow as possible. The primary drive was taken from straight cut gear cogs from the middle of the twin crankshafts. A massive dry clutch sat along with three of the exhaust pipes on the right of the engine. A spindly, tubular steel frame held the engine, with narrow telescopic forks at the front and conventional twin shocks at the rear. Later, TZ750 models (also known as OW31s) had vastly improved monoshock rear suspension, with a cantilevered swingarm to improve handling. It was named F750 as a prototype although it was actuallt 700cc. Awesome! 90 bhp from a 2 stroker would shred any kind of race tire way back then. Kel Carruthers, the 1969 250 world champ was the first man who tested the bike. He removed the initial glitches by increasing the swingarm and improving the suspension. Still except for Kenny, the others were quite slow on the tracks as they were not able to handle it as the bike had small fork tube and chassis. After about 3-4 races, Yamaha added some more power! Another 20 bhp. Why? Because according to Kel, "It wasn't as fast as it could have been. They were really conservative in the way they built it.” In a way, Kel was actually serious. You know Yamaha back in the late 60s had V4 250cc GP bikes which were making around 75bhp, so logically the bike should have around 140bhp. Of course there was no chasis or tyre which would have hold it was another thing, but come to think about it, the bike with modifications later did belt was that much power.

 

I honestly can't imagine the hit this bike would have.  I've always thought a healthy 250cc two stroke gives a nice adrenaline rush.  Maybe it is an optical illusion but I don't know how that upper muffler doesn't cook your leg.

It will make an excellent addition to any collection or instantly turn you into the bad boy at  the track.  If you interest still isn't peaked it looks like it is a "no reserve" auction.  It is going home with someone.  Click to win.

Ian

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