2 stroke lingo and troubshoot
 

Hey guys and gals! My name is Jarrod and I am just now getting into the 2 stroke world.

I work as a mechanic on 4 strokes and basic maintenance items on 2 strokes.

I just picked up a 2001 GG XC 250 (was told it was an EC... oh well). Clutch plates were stuck so I got it for a steal. Removed and soaked the plates and she runs and rides now.

1 or 2 kick bike with what I can tell is oem stuff. FMF Gnarly header with turbine core 2 silencer.

All seems good except for the infuriating searching idle, hanging idle and occasional low idle and stall when coming to a stop.

From searching this site and putting together what I could, I also think I experience "blubbering" in the 1/8 range. The bike sounds stuttery, lacking in power and then hits the pipe pretty abruptly and away I go. Kind of sketchy and unpredictable.

I am looking for any guidance on smoothing the idle and taming the hit. If there is a JD kit or something.

I do not know much about this as it stands. Any help would be greatly appreciated. Look forward to learning this new world.

Current set up:
*Carb cleaned thoroughly
*Assume factory pilot and main ( i meant to check when I had it apart - looks like main is crimped in place though???)
*I have adjusted the air screw from 1 out to 3 turns with erratic results.
*No air leaks from boots or carb (sprayed carb cleaner around it)

Crank seal going bad, probably on the mag side. It's an easy, inexpensive fix.

RB

Leak down test, seal the carb and pipe manifolds, find a screw in shrader valve for the plug, pump up to 10psi if it holds for a minute it's not an air leak. If it doesn't, spray soap and water mix at every rubber/paper part, you will need to drain the oil and water and remove rhs clutch cover, the Lhs ignition cover and magneto, do a 5 psi vacuum test as well.