Critchy87

Air mixture screw set at 1.5 turns 32:1 93 octane mix also seems to run cold when I’m riding takes a while to get to 170F but seems to run ok hits power and and what not bogs down a little at low to mid range with current settings

Hi trying to get in the right ball park for my jetting on my 2000 banshee. I’m at 1496 ft altitude. jetted at 158 main and 50 pilot and clip on jh needle on last spot from bottom right now seems to be rich as 2 stroke oil comes out of both My exhausts zero leaks have done leaks down holds 6lbs for 24 hours. specs are keihin 28 pwk’s 65.50 4mm stroker with 21cc stroker domes 795 wiseco pistons 140 compression both cylinders some sort of port job has fmf etched into both cylinders on side and can see work done on inside very clean professionally done fmf fatty exhaust system tors delete all oem electronics waiting on cdi from dynatek and will prob run curve 3 as I heard it’s closest to +4 timing thank you for your time and help

I figured it out fmf head is taller than stock it’s a long rod stroker with 795 pistons just can run any stock dome on. Sorry for wasting your all’s time

Coming out of the cylinder didn’t mean to say head sorry

Hi I purchased a banshee second hand was told it was a stroker motor. Just pulled the stock head it has 795 65mm wiseco pistons. The jugs appear to be aftermarket as they say fmf on the side. Problem I’m having is when piston is at tdc the only thing coming out of head is the domed part of piston none of the side wall comes out I was under the assumption a small amount of the side wall was suppose to come out of the cylinder as well with a stroker . No spacer. Stock head didn’t appear to have any work to it either. Question now is am I suppose to run stroker domes or just stock domes just don’t want to ruin anything . I’m switching to a chariot head . Thanks for help

Hi everyone just purchased a banshee and it has fmf power valves looking for any information on these such as a manual or video are they tunable thanks in advance