id get a fly wheel pullr i got 1 for me 300 exc stroker motor do all the work me self. um dont spray wd 40 wont do any think you need sand paper wet n dry on the magets on the stator.if ya sparks down it will run rich. i would try the ajustment on the exhaust controll ezz the tention off so she grunts out more /coolr plug and take the othr guys addv and try a biggr needl sounds good idear too me too.the pipe will have the engine exrtacting more and run hotr so it might not be so silly too adjust that controll might need a lil more tention on the dam thinkit can effect the way shes burning the fuel .combo may be some jetting some exhaust controll ajusts at the end of it all the pipe will have you plzd im sure im wrapd with the fmf pipe i just put on me 300 . it was run nn n rich i put in coolr plug/ and ajusted the exhaust controll too sute the new pipe and she settn the bush on fire lol :pKTM Mike said:Yes..this is a 2 stroke. Exhaust control (power valve) should have no impact on the jetting however. Hotter plug would to me, only seem to make things worse, not better..that is why i tried a step colder. But no difference.
I did attempt to see if it was a left main...pulled ignition cover, started bike and while running tried to spray some WD40 in general area of left main seal. I am not so sure I was able to get a consistent enough spray on target (hard to hit when it is behind the stator plate and flywheel!)...but for what ever it is worth...with a steady stream spraying in there, no change on how the bike was running. It it were a right main, I would be sucking in tranny oil and blowing white smoke...so not that.
To listen to the bike sittin on the stand idling...it simply sounds like a well running bike...emitting no smoke at all! (other than at inital start up). I also did put the choke on while it was running at idle on the stand. (and already warm). It stumbled, kept running, started puffing some smoke, then did stall. So clearly it is leaner than with choke on! (As it should be...not sure why I did check that - curious I guess.)
So..my next step...hmmm...just to rule it out, I will buy some new gas, mix it up fresh. see if that could be it (for the life of me i cant see why it would be though). FWIW, I am running Amsoil Dominator (full synthetic) at 40 to 1.
ggr3 said:So even after you when to a 162 main, the only way your got your plug looking correct was by adjusting air/fuel and needle clip position?
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