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bluewool
Guest
****ing awesome find!!! I have been wanting a TX750 for a couple of years now. Interesting bike.
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Pretty nice barn find!!!!!
- Thread starter chuck hahn
- Start date
If I do the carbs and get it running other than on starting fluid, what will you give me for it? Send me a PM. if your really in the market.
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nvr2old
Forum Sage
Hope you don't "get the crabs.." :lol: Great find, chuck. That's a bike to get running, and leave it just the way it is. Even the faded tank paint should remain. It has so much character juuust the way it is.
Went back and took care of the crabs Larry..I type with 2 fingers and that happens all the time. Really think I should keep it and get it running as is??
The info Colin Green posted on this model is correct. Balancer shaft chains stretching and oil aeration leading to crank failures were the big problems.Used gently they will last.
Someone said would mother want the chick back....short story.
The TX750 was introduced in Aussie and NZ shortly before the Castrol 6 hour race in Oz...of course there were a number of them entered, most with dealer support to get publicity for the new model. Several teams with big name riders too...Anyway, all except one dropped out. The one finisher was a low budget privateer team and factory reps bought the bike out of the finishers park to examine it to see why it had lasted...
According to a Kiwi who was in the bar afterward with the owners, their plan all along had been to finish and they hadn't taken it over 5000 RPM all race....
Nice find though.
Someone said would mother want the chick back....short story.
The TX750 was introduced in Aussie and NZ shortly before the Castrol 6 hour race in Oz...of course there were a number of them entered, most with dealer support to get publicity for the new model. Several teams with big name riders too...Anyway, all except one dropped out. The one finisher was a low budget privateer team and factory reps bought the bike out of the finishers park to examine it to see why it had lasted...
According to a Kiwi who was in the bar afterward with the owners, their plan all along had been to finish and they hadn't taken it over 5000 RPM all race....
Nice find though.
Greg..should i keep it, i wont be at any racing speeds or RPMs. It has lasted as far as 1988 as far as the old owner recalls the last time he rode it..so Im not too overly concerned.
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bluewool
Guest
http://www.classicyams.com/street-bikes/4-stroke/yamaha-tx750-story.html
from the link above
"Of course I also cannot recall everything that happened during those hectic days but I remember that one of our race mechanics, Rod Tingate, suspected that the problem was in the oil circulation. He cut the oil tank and glued a Perspex window on it. After running the engine it was clear that not oil, but just foam came from the return pipe.
Oil temperature was therefore the main problem, we were thinking. Only years later we realized that it was something different. Japanese Motorcycles in the early 1970’s were light years ahead of cars. But we only had “old” car-designed 4-stroke oil!
Several oil-engineers have assured me later that if modern 4-stroke motorcycle oils had been available in those years, Yamaha would not have had any recall.... And also Honda would not have had their camshaft and camchain-tensioner problems as another example. But if... does not help."
from the link above
"Of course I also cannot recall everything that happened during those hectic days but I remember that one of our race mechanics, Rod Tingate, suspected that the problem was in the oil circulation. He cut the oil tank and glued a Perspex window on it. After running the engine it was clear that not oil, but just foam came from the return pipe.
Oil temperature was therefore the main problem, we were thinking. Only years later we realized that it was something different. Japanese Motorcycles in the early 1970’s were light years ahead of cars. But we only had “old” car-designed 4-stroke oil!
Several oil-engineers have assured me later that if modern 4-stroke motorcycle oils had been available in those years, Yamaha would not have had any recall.... And also Honda would not have had their camshaft and camchain-tensioner problems as another example. But if... does not help."
nvr2old
Forum Sage
I would if it were me. That bike is just too cool to mess with other then getting it mechanically safe. We both have bikes that are picture perfect, and I love beautifully restored bikes, but when you run across one with that much originality, it's a shame to hide it's 40 years of patina.
J
joejeweler
Guest
Way nicer without the jammer fairing.
You got's a problemo with Jammers?
I\Seriously, i prefer not to have to clean bugs off my body,.....and occassionally "eating" one!
Longer riding season is another,.......right up until the snow flies. I like it much better now that i lowered the Vetter windshield about 6" to allow some air cooling if i want it by sitting up,......but you still get the main air flow "up and over" the head.
Around town not so bad,......but i made a 200 mile round trip to the casino a few weeks ago, as well as the group Catskill ride on one of the legs for about 225 miles. The Jammer made the long trips less tiring. The 200 mile casino trips might be a recurring event!
......although i do enjoy a "nakid" bike around town.
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Ok... I decided to at least get her running on her own power, so the carb rebuild begins tomorrow. I have a camera with a video capability so if i can figure out how to get it into photo bucket there will be a video of it actually running when we get her fired up.
Chuck, The normal green click on 'button' in photobucket will let you upload photos 'and' videos.
I got the carb bowl gaskts yesterday and did a test rub down with some 3M scratch remover to see how shiney and refreshed the paint would look..Not bad if i say so myself!!!!
Doing a bit of polishing
Doing a bit of polishing
Did a bit more polishing on the tank and side covers..mind you nthis is the original 39 year old paint. Theres a bit of sun fade on the top of the tank but im not gonna sweat that.
Doing a bit of polishing
Did a bit more polishing on the tank and side covers..mind you nthis is the original 39 year old paint. Theres a bit of sun fade on the top of the tank but im not gonna sweat that.
A few more...
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Toasty
Guest
So when are you gonna turn it into a bobber?
I keed I keed.
I keed I keed.
AHHHH...I dont see that in its futrue!!! Too nice and to scarse (from what i am understanding). Be a nice bike show bike and casual ride from time to time.
G
Guest
Guest
Chuck,
That is a tremendous find! Really Sweet, especially in that condition. Don't remember seeing too many of them, as the Honda CB750K was the sales grabber. The KZ Z1 900 came out about then, and Yamaha Twin 750 went by the way to the Yamaha 750 triple, which they added a 4th cylinder and produced the XS11 Eleven (1100cc, king of the mid range roll on.)
I had a '76 XS650, your bike reminds me of that. Unfortunately I had to sell it before I tired of it when I left Alaska. The vibration made me feel like it had more power than it really did. The bike had a nice feel and handled good, fit me perfectly.
Here's a pic with me on the XS650 in Alaska back in '78, yours looks just as good! I think you'll enjoy the gobs of low end torque!
That is a tremendous find! Really Sweet, especially in that condition. Don't remember seeing too many of them, as the Honda CB750K was the sales grabber. The KZ Z1 900 came out about then, and Yamaha Twin 750 went by the way to the Yamaha 750 triple, which they added a 4th cylinder and produced the XS11 Eleven (1100cc, king of the mid range roll on.)
I had a '76 XS650, your bike reminds me of that. Unfortunately I had to sell it before I tired of it when I left Alaska. The vibration made me feel like it had more power than it really did. The bike had a nice feel and handled good, fit me perfectly.
Here's a pic with me on the XS650 in Alaska back in '78, yours looks just as good! I think you'll enjoy the gobs of low end torque!
Steve , I had a 1980 XS 650 Standard for a while..I know about the low end and the vibrations..I called it the nut nummer because after a while the vibes made the general area that came in contact numb..like if your foot feel asleep. Glad the pics are bringing some joy to you and maybe others that have viewed them. The carbs are all done. Soon as i get another full day off they will go on and the first start in nearly 20 years will be attempted. I plan on having a video of her when shes running of her own free will again. Stay tuned in the next few days.
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G
Guest
Guest
Chuck,
I didn't know you were that close to getting her running. Sure I'd like to see and hear that video!
I didn't know you were that close to getting her running. Sure I'd like to see and hear that video!
