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Old 08-10-2014, 09:24 PM
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a.graham52 a.graham52 is offline
Motorized Bicycle Elite Member
Join Date: Nov 2013
Location: island of misfit toys, maine
Posts: 232
Default Re: How to tune an engine with a temp gauge?

personally in my opinion you want to go just lean enough to stop the for stroking. JUST enough. my bike fourstoked at cruise and when i swapped heads i found the plug fairly dark as well as a lot of carbon built up on the piston and head. i since have adjusted my needle (cruise setting) and much happier. still need to ritchen WOT though.

good tuning tip. always asses how well your bike is running when its up to temp. might take a mile or two but a cold engine will never run consistently.
Genisis Twenty, 2013 Skyhawk GT5. CNS carb, 4x3" K&N filter, #68 pilot #73 main, adjustable needle, puch head w/ bolts, gutted and extended stock muffler
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