just an update to different jetting findings. below are the results:
172 mj
40 pj
NEDH needle #2
added over-sized power valve cover
bike ran ok. a little more bottom end and still real strong on top. Spark plug black but not wet. lots of spooge out the pipe. idle not quite right. air screw 3 turns out
Then
Changed back to NBHW needle #3 (NBHW tip looks thinner than NEDH), & Advanced timing (measures 1.8 to 2mm BTDC). Much better low end grunt, more linear power, no spooge out the exhaust, idles nice with air screw 1.75 turns out. Plug is dry, very light golden brown with a clean ground electrode (no particles).
I will be changing the main jet to a 180 next to get a little more color in the plug.
has any one else advanced their timing and what results did it have on your jetting.
Cheers.
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