Z0sick Posted October 17, 2007 Report Posted October 17, 2007 (edited) Just looking for a little help on jetting. The bike currently has the following: ProDesign cool head w/19cc domes mid-range porting FMF Gold Series pipes FMF Power Core silencers RS Timing advance plate (+6) TDR reeds on modified stock cages Keihin 28PWK carbs K+N filter with outerwear Modified airbox lid I am at 1500ft and the temps are starting to get cooler. (35-70) I run a mix of 111 and 927 @ 1:32. The main jets currently in the bike are 138's I think. I am going to buy a few sets of jets this week. What range should I be looking to get? Edited October 17, 2007 by Z0sick Quote
locogato11283 Posted October 18, 2007 Report Posted October 18, 2007 id start at 162 mains and 48 pilots just to be on the safe side. you should be able to work down from there. i bet youll land right around 160 mains and 45 pilots... Quote
Z0sick Posted October 18, 2007 Author Report Posted October 18, 2007 id start at 162 mains and 48 pilots just to be on the safe side. you should be able to work down from there. i bet youll land right around 160 mains and 45 pilots... from 138 to 162 seems like a big jump. The bike has been running good all summer on the 138's. Temps ranged from 85 to 105. Everything I'm reading on here is telling me to add 1 to 2 sizes for every 25*. This winter should get to around freezing here so a temp change of 50-60 would mean 2-4 jet sizes. Should put me at 142-148. These are in pwk 28's btw. Quote
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