Jpan350 Posted August 18, 2017 Report Share Posted August 18, 2017 just bought another banshee, when i first got it the boy said it was on a new rebuild, but who ever fully trust someone without documents. Anyways got it home the petcock needed a new seal and the left carb poured fuel so i fixed those problems..He was running a set of fmf exhaust, k&n with no lid, cool head with 19cc domes, boost bottle and reed spacers with stock cage and new reeds...While cleaning both carbs i noticed it was 280 main and 25 pilot, i had a set of 300's and 27.5's that i put it. Started it up and let it set at idle to warm up and when for a quick trip maybe 1000 foot when i got it back i was feeling around on the engine doing a walk around and the left exhaust gets smoking hot like its running lean while the right exhaust i can hold onto, also the left silencer feels like its pushing more compression out than the right but when the compression is checked with a tester from the head both cylinders are at 148...Has anyone experienced anything like this also the right exhaust pushes more smoke than the left, im lost on where to start since everything is sync'd together at the same settings for fuel/air.. my elevation ranges from 700-1000ft with temps from 70-90 Quote Link to comment Share on other sites More sharing options...
ginger Posted August 18, 2017 Report Share Posted August 18, 2017 carbs probably are not synced Quote Link to comment Share on other sites More sharing options...
Jpan350 Posted August 18, 2017 Author Report Share Posted August 18, 2017 Theyre set with the same jets, fuel screws are out equally and the slides have been adjusted to where they lift and fall at the same time no slack between the carbs Quote Link to comment Share on other sites More sharing options...
Jpan350 Posted August 18, 2017 Author Report Share Posted August 18, 2017 Ive always set the fuel screw 2.5 turns out on both works well for the other one with the same parts Quote Link to comment Share on other sites More sharing options...
ginger Posted August 18, 2017 Report Share Posted August 18, 2017 well you either have carbs not synced or an air leak on one side. Quote Link to comment Share on other sites More sharing options...
Jpan350 Posted August 18, 2017 Author Report Share Posted August 18, 2017 ill check as soon as i get home for an air leak Quote Link to comment Share on other sites More sharing options...
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