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Main Area => General GS500 Discussion => Topic started by: skunkteeth on April 30, 2012, 11:01:59 PM

Title: Did my first Valve Check
Post by: skunkteeth on April 30, 2012, 11:01:59 PM
Both intake valves were in spec, .03 for Intake 1 and .05 for Intake 2.  Should I shim intake 1 to .08? Intake 2 was a 2.58 shim so I can knock it to .08 also with a 2.55.

But both exhaust valves are .15mm. I know gsJack runs .1 to .13 mm, so I am going  to .10 by going up .05mm in shim size. What negative effects should I be noticing due to the slightly excessive valve clearance? It idles a little unsteady, would that be caused by this?

Thanks everyone this place has taught me tons.
Title: Re: Did my first Valve Check
Post by: twinrat on May 01, 2012, 12:00:11 AM
you wont get any problem with this extra clearance as its less than the thickness of a human hair .i like extra clearance as i only check mine every 8000 miles .
Title: Re: Did my first Valve Check
Post by: simon79 on May 01, 2012, 02:58:30 AM
Clearance above spec is no doubt better than below spec, maintenance-wise.

Anyway I recall somebody here saying that with increased clearance you might want to be a bit extra careful with the throttle, since there's the possibility that revving the engine high for long might toss out a shim. Don't know how likely it may be, though.
Title: Re: Did my first Valve Check
Post by: Bluesmudge on May 01, 2012, 12:45:25 PM
You might as well get the intakes to the upper-end of spec while you are in there so you can forget about it for another 4,000-8,000 miles.
Title: Re: Did my first Valve Check
Post by: Suzuki Stevo on May 01, 2012, 12:59:22 PM
Quote from: simon79 on May 01, 2012, 02:58:30 AM
Clearance above spec is no doubt better than below spec, maintenance-wise.

Anyway I recall somebody here saying that with increased clearance you might want to be a bit extra careful with the throttle, since there's the possibility that revving the engine high for long might toss out a shim. Don't know how likely it may be, though.
Not likely at all...but extra clearance does shorten lift and duration, I would rather hear a little valve clatter then not hear it  :thumb:
Title: Re: Did my first Valve Check
Post by: skunkteeth on May 01, 2012, 02:22:22 PM
Thanks guys, I will shim the intakes to .08 also
Title: Re: Did my first Valve Check
Post by: jiggamanlu on May 19, 2012, 05:20:13 PM
Can some one upload a simple way to check valves I believe I will have to do vert soon ...thanks
Title: Re: Did my first Valve Check
Post by: gsJack on May 19, 2012, 05:43:29 PM
Start with Jessie's new videos.

1989-2000 Models:  http://youtu.be/jIL0eMzRPF8

2001-2002 Models:  http://youtu.be/GWrlaIafIAU

2004-up Models:  http://youtu.be/5J19aNdXV08
Title: Re: Did my first Valve Check
Post by: slipperymongoose on May 19, 2012, 05:44:51 PM
Baltimoregs's videos are pretty much it. Personally I would stick in Suzuki's specs that they say.
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