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Old 08-02-2011, 10:49 PM
Dymaxion Dymaxion is offline
Motorized Bicycle Senior Member
Join Date: Jan 2010
Location: Michigan
Posts: 67
Default Re: Time to tune - need help.

Thanks guys. Yes i have lowered the clip with no noticable difference in plug color although 4stroking increased The plug color has been good - mostly grey with some brown tint to it. Unfortunately the plugs have been fairly consistent regardless of how I ran the bike (different needle positions or throttle positions). I wish there was greater variance to guide me.

The motor really seemed to come on with more power and smoothness in the last 10 miles so I will run a bit longer as is before trying smaller jet. It just seems odd to me that it is 4 stroking constantly between 1/8 and 7/8 throttle but runs smoothly at wot.

I'd like to see some 4-stroking at wot as well to feel better about a smaller jet.

Last edited by Dymaxion; 08-02-2011 at 10:54 PM.
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