howmuch out of spec can you go

[timebombprod]

rechecked shims, so they did change a bit, and it may be my fault. i dont know if this messes things up but i pressed my starter to see if i fixed the clutch wire and well i did but my engine did spin with no valve cover on, does that do anything bad?

the 2 clearances that are out of spec are exhaust 3 and intake 1, exhaust 3 is at .10mm and intake 1 is the same as well, i heard you can kinda be out of spec on the looser side but mainly with the exhaust clearances, one thing is i have to get a shim that'd be a 2.73mm for intake 1 and exhaust 3 would need an odd number aswell.....as in.... weird.

everything else has been going good got both clutch and brake switch working properly and everything is mounted on bars, so its the clearances and putting the front brake back together, dont worry the brakes are next on the list to fix up. new pads and cleaning pistons.

edit: .08 is the highest clearance in spec on the manual.

 

[chuck hahn]

youre good. put the cover on

 

[Agemax]

0.1mm is perfectly acceptable. i set all my clearances on my GS1000 to as close to 0.1mm as i can.
I will get shims surface ground to get me where i need to be if i cant get the clearance using stock sized shims

 

[timebombprod]

okay, one more question, with valve clearances jumping from .08 to .03 would it be a spring thats sticking?


asin i checked them today after a few days and one clearance jumped to that, but i also never checkedthem afteri hitthe starterbutton

 

[LAB3]

Going from .08 to .03 gets me to wondering if a shim was swapped in error.

 

[Buffalo Bill]

The greater the measurement, the shorter the duration, the smaller the lift = the lower the power.

 

[bwringer]

Going from .08 to .03 gets me to wondering if a shim was swapped in error.

I've also seen clearances jump down like this in engines with a ton of carbon buildup. Once things (carburetion, valve stem seals, etc.) are corrected and it runs for a while, some of the buildup on the lip of the valve wears away and you get the "true" clearances. (It is possible to replace valve stem seals without removing the cylinder head.)

No idea if that explains what's happening in this particular case, of course, but it's a thing I've seen.