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Old 03-31-2012, 11:38 AM   #1
bigmd OP
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77 xs750

hey guys been browsing craigslist for a while in search of a classic bike.well today i found a 77 Yamaha xs750 that runs but needs shift forks.is this a job that will cost alot and require removal of engine?he nonly wants 350 bucks and is in the next town over from me.thanks
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Old 03-31-2012, 11:51 AM   #2
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I'd pass.

You will be digging into the trans, and most likely will be splitting the cases by the time you are done. Sounds a little over your head right now.
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Old 03-31-2012, 11:56 AM   #3
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yeah i figured it was a big job.thanks
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Old 03-31-2012, 06:35 PM   #4
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and um, usually if someone has enough skill to ACCURATELY diagnose a problem, they'd have fixed it by now. The savage that BENT the shift forks probably has destroyed lot's of other things on the bike too. Walk on by.... unless you need a hobby. Buy it for $100 and dive in
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Old 03-31-2012, 06:41 PM   #5
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Yea it would be a hobby , currently workin on a 64 ct90 but thinking I would like something for the street.i emailed the guy but he hasn't got back to. Me
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Old 03-31-2012, 07:12 PM   #6
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Can you even buy shift forks for it?
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Old 04-01-2012, 04:29 AM   #7
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Yea it would be a hobby , currently workin on a 64 ct90 but thinking I would like something for the street.i emailed the guy but he hasn't got back to. Me
I call it Flakeslist for a reason... I've been completely through the XS750 engine, albeit 32 years ago. Parts are available.
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Old 04-01-2012, 04:52 AM   #8
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thanks for replies huys but he never got back to me so on to the next one.
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Old 04-01-2012, 03:41 PM   #9
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thanks for replies huys but he never got back to me so on to the next one.
The old XS11's are a rocking UJM.
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Old 04-01-2012, 04:13 PM   #10
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You don't say WHICH XS750... the D and 2D (7500 rpm redline) had "issues" with trhe transmission from the get-go and were fixed (eventually) under warranty. They would jump out of second gear, coming up or down - it was put down to a bad batch of gears, though that might have been a PR smokescreen for a poor design.
The later (last) model 750 triple was the E model (9000 rpm redline) and theoretically didn't have this problem - but if they did, were also swiftly dealt with by dealers.
Perhaps this one was never offered up for its factory-fix? However, I doubt that even Yamaha would entertain a 35-year-old warranty claim.
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Old 04-01-2012, 04:39 PM   #11
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doesnt say in ad.bike is DOHC 750
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Old 04-01-2012, 04:44 PM   #12
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You don't say WHICH XS750... the D and 2D (7500 rpm redline) had "issues" with trhe transmission from the get-go and were fixed (eventually) under warranty. They would jump out of second gear, coming up or down - it was put down to a bad batch of gears, though that might have been a PR smokescreen for a poor design.
The later (last) model 750 triple was the E model (9000 rpm redline) and theoretically didn't have this problem - but if they did, were also swiftly dealt with by dealers.
Perhaps this one was never offered up for its factory-fix? However, I doubt that even Yamaha would entertain a 35-year-old warranty claim.
My riding bud bought a brand new XS750D in '77. Three trips around the US, and every moment it wasn't snowing, it had 73,000 miles on it in May 1984 when he died an untimely (Non-MC related) death. Transmission worked fine the whole way. His must've been a GOOD design, lol. Seriously though, I think it's a case of not being robust enough for abusive riders, (compared to other brands) whereas, when operated normally, work fine.
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Old 04-02-2012, 12:36 AM   #13
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Seriously though, I think it's a case of not being robust enough for abusive riders, (compared to other brands) whereas, when operated normally, work fine.
As I have ridden a coupe XS750ies up to now: No, it's not a good design, as the undercut of the gear wheels of 2nd and 3rd gear both have a too shallow angle and tend to wear down the cogs and round out the holes on the neighbouring gear.

This problem mostly occurs, when you do a lot of backroad scratching, where you're mostly in 2nd and 3rd gear and are accelerating hard.

Funny thing is, you can do the so called "trap-door" mod and cut out a bit of the underside of the casting then you can change the gears in situ.

But seriously, if you don't have a very special fancy, I would walk past an XS750 nowadays and much rather get a Triumph Trident 750 or 900, if you want a triple for touring or get a nice twin or four.

Cheers,
Greg
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