Apachekid
Member
Ive got a bike with 2 yr old 66cc Gruebee with a lot of miles.
Here is what it does:
Full choke - wont kill engine
Half choke - only way it idles
No choke - rpm's run way up
At half choke engine runs good enough to get to main jet, has good topend, but engine over revs when clutch pulled in. Plug chop at WOT: whitish gray.
Engine running hot and lean.
Here is what Ive already done:
-Replaced carb w/ O-ring
-Replaced intake gasket, sealed carb to intake
-Replaced head gasket
-Replaced base gasket
Still have same problem after each step - nothing changes. Sprayed all around for leaks - no change in idle. Have also checked gaskets on mag cover and clutch cover and tightened clutch stop bolt.
Could I have crank seals leaking? Or, does anybody have any other ideas where it could be sucking air? Dont want to miss something easy before I take down engine............
Here is what it does:
Full choke - wont kill engine
Half choke - only way it idles
No choke - rpm's run way up
At half choke engine runs good enough to get to main jet, has good topend, but engine over revs when clutch pulled in. Plug chop at WOT: whitish gray.
Engine running hot and lean.
Here is what Ive already done:
-Replaced carb w/ O-ring
-Replaced intake gasket, sealed carb to intake
-Replaced head gasket
-Replaced base gasket
Still have same problem after each step - nothing changes. Sprayed all around for leaks - no change in idle. Have also checked gaskets on mag cover and clutch cover and tightened clutch stop bolt.
Could I have crank seals leaking? Or, does anybody have any other ideas where it could be sucking air? Dont want to miss something easy before I take down engine............
