Thread: 100:1 Mix
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Old 03-26-2011, 07:50 PM
jauguston jauguston is offline
Motorized Bicycle Elite Member
Join Date: May 2010
Location: Bellingham, WA
Posts: 142
Default Re: 100:1 Mix


The fuel viscosity at 100-1 is thinner than 32-1. Thinner viscosity fuel will flow easier and faster through a given size jet. So it will run richer at 100-1 than it did at 32-1. The stock jet is .70mm. Order from Sick Bike Parts a .68mm and a .66mm jet. Try the 68 first and it should run better. Then try the 66. It may be even better yet. If it sags at fill throttle it is a little bit lean. If it stutters at light load part throttle it is rich. I run a 66 in mine and it is best for me. Also put the needle clip in the top groove of the needle. I run Opti-2 at 100-1 and my engine seems to love it.

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