stock main jet sizes GS650L?

[rkubik]

trying to diagnose poor top end running, and find that after doing high speed plug chop (the right way, from advice here) it seems to be running much too rich: i.e. black soot on #4 plug, 1-2-3 looking black but not as sooty.

Since the PO had no air filter and gutted exhausts, maybe he up-jetted to compensate. But now that I've reinstalled an air filter and mufflers... anybody out there know the stock main jet size for a 1982 GS650GLZ? I'll go to that for a starting point.

Low speed running (up to about 1/8 throttle) is great, got the air screws fiddled right. And the mid-range jet needles are clip-adjustable, that's next.

[chef1366]

This site states stock jet sizes.

http://www.mrcycles.com/

[rkubik]

This site states stock jet sizes.

http://www.mrcycles.com/

Thanks! It's a 110. Now to go see what's actually in there.

[rkubik]

success!

Installed 105 main jets, runs much better now (I am at kind of high altitude, 3500+ feet). Better running for sure and probably better gas mileage as well.

When I get time, might try a little leaner yet.