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The Garage Motorcycle Related Discussion (Yamaha XS650, other makes and models, and anything else motorcycle related including tools and gear)

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Old 07-24-2010, 09:28 AM   #1
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Default Valve Clearance

I have an 83 xs 650, what is the intake and exhause valve clearance?

Thanks Chris
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Old 07-24-2010, 11:17 AM   #2
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Default Re: Valve Clearance

0.004" E and 0.002" I, I believe. You really need to buy yourself a Clymers and/or Haynes manual, and go to biker.net and d/l the factory manuals there.

Triple Tuning Forks Rule!

XS650s: D, E, SG, SH (sold)
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Old 07-24-2010, 12:24 PM   #3
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Default Re: Valve Clearance

I'm running .004" in and .006" exhaust on my '83.
Yeah, you really need a manual. A spare parts bike is great to have too! HA!

'83SK, XS750 forks, XSJohn quick throttle mod,2 over bore, 17/32 gearing, UNI's, Voltmeter, bitsa -'77D, upgraded ignition w/stock TCI, bs34's w/UNI's, voltmeter-
'78SE upgraded w/stock TCI, bs38's w/UNIs, '79SF tank and side covers
Go ahead, turn the damn power and water off....I'm ready!
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Old 08-09-2010, 08:25 AM   #4
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Default Re: Valve Clearance

I have each of them the engine is a 650 h according to the vin
the table on pg-10 of haynes lists
xs 1 B xs 2
tx 650
xs650 B
XS 650 C
(forgive the caps , funky keyboard)
thanks for responding
anyone with a 650 h 81 special?
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Old 08-09-2010, 08:37 AM   #5
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Default Re: Valve Clearance

Maybe I'm not understanding your question.
The list you refer to is refferencing models.
If it isn't listing an H model it's because you have old manuals (pre- 81).
SK 83
SJ 82 (the heritage special in black)
SH 81
SG 80
SF, 2F, and the F '79 (the only year 3 models were produced)
E '78
and so forth.
The correct settings for your model is I .0025" (.06mm) E .006" (.15mm) .
I had given the wrong numbers off the cuff, the edit was to correct these.
My appologies Bklynmat

Last edited by weekendrider; 08-09-2010 at 09:40 AM.

All of them say XS650, but none of them run exactly the same.
Never bought one that was running. Never sold/gave away one that wasn't.
XS's don't fall under the DMCA rules.
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Old 08-09-2010, 09:16 AM   #6
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Default Re: Valve Clearance

my haynes covers 70 through 83 n& clymer is also covering these years
they just don't clearly state the H-models these are frustrating documents
like regarding electrical, they go into depth about points etc & then clymer has a supplement for after 80 models, actually I wnt to biker as was suggested & under H model they speced .06mm & .15mm exhaust, this is what mine is set to but i feel it is off
Thank You Weekend for your input I appreciate all the advice
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Old 08-09-2010, 11:19 AM   #7
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Default Re: Valve Clearance

horray for search bars.
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Old 08-09-2010, 01:53 PM   #8
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Default Re: Valve Clearance

Accepted practice is to use .003" intake and .006" exhaust for all models. Yamaha changed the specs during the 15 year production run almost more times than you can count and there really seems to be no reason as to why. The motor was basically the same the whole time.

'78E Standard and 4 Euro twins
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