2wheelturned4 Posted September 28, 2012 Report Share Posted September 28, 2012 Just rebuilt my engine with an athena 392 kit, its got fmf sst's, powercore 2 silencers, noss machine pod filter setup with no lid on the box. Im not quite sure what the pilots are but i stepped up the mains from 280's to 340's with the needles in the second from top position. Bike is a lil hard to start and wont idle, backfires and pops and seems to only run on one cylinder down low and makes about as much power as a peewee 50, then it comes alive up towards the top and kinda gets hard to ride. Its making heaps more top end than before but the missing bottom end kinda makes it no good to ride. Any ideas where i should be looking? They are the stock carbs. Im thinking stepping up the pilots to 30's will this help? Also its a pig to change gears on, i have to granny shift it at the moment otherwise it wont change. Any ideas whats wrong here that might point me in the right direction? Quote Link to comment Share on other sites More sharing options...
Jereme6655 Posted September 28, 2012 Report Share Posted September 28, 2012 30 may wind up being a little large........27.5 pilots is where i would start. Dont forget to do a plug chop. And about the trans issue........your making too much power to quick shift it......you may also start to notice that you start to find the mysterious neutral gear after second gear if you try drag racing. There is a few things that you can do.....if you only drag race you can go to a over-ride style transmission.......just be careful.......the dunable overides allow slight backloading.....the regular overides will not take backloading. You could also try getting your trans "cut" by some of the guys on here.......sheerider1026 does it and also camatv does it. its supposed to make it a million times nicer too shift.......i know this winter i may send my trans out..... Quote Link to comment Share on other sites More sharing options...
Surfrjag Posted September 28, 2012 Report Share Posted September 28, 2012 i would start with cleaning the carbs, syncing them, checking float heights. while your in there you can see what pilots you have. Quote Link to comment Share on other sites More sharing options...
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