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Showing results for tags 'keihin carbs 39mm jetting'.
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Okay yall i need serious help. Ive tryed everything i could but something dosent add up. Im running stock bore toomy t5s pyramid reeds dual filters 50;1 br8es plugs timing +4 elevation approx 1200ft.. My issue now and tell me what some dummy was thinking when building this. It has keihin 39mm pkw carbs 150 main 60 pilot dgh needle slide is 6 needle is currently at #2 but ive tryed all 5. It runs like shit past 1/4 throttle. Bogs pops backfires thru carb. Im dumbfounded. I think i need a bigger main but is this carb to big in general.