bad_shee05 Posted November 23, 2006 Report Share Posted November 23, 2006 alright well i was riding my banshee one day just normal and it was running great and had no problems and then i let off the throttle adn it fealt like it fouled out and then i heard a high pitched noise and a backfire and she was done. I looked into it and i had sheered off a flywheel key. it was a +4 degree vito's timing key so i replaced it with a stock one. Still wouldnt start. It was like one cylinder was totally dead. so i replaced the reeds thinking the backfire blew them out. they didnt look bad but one had a chip in the cage. so i put v-force 3's in it and it fired right up and ran and then again fealt like one cylinder fouled out so when i give it gas it would come back on and then die out and then i got a big pop and a flame out the silencer. any ideas? I had just gone through the bottum end with bearings and seals, had the top end ported and bored adn put wiseco pro-lite pistons in it about 6 months ago. i have a trinity 2 into 1 carb setup and manifold. also have trinity t-6 pipes. Anyone have any ideas? Quote Link to comment Share on other sites More sharing options...
CFM Posted November 23, 2006 Report Share Posted November 23, 2006 Not that it will help your issue, but I've never trusted the offset key's, too little material there to hold up IMO... Do the basic checks, 2 strokes are very simple and the problem is usually a cheap/easy fix. Quote Link to comment Share on other sites More sharing options...
Sprntr81 Posted November 23, 2006 Report Share Posted November 23, 2006 Not that it will help your issue, but I've never trusted the offset key's, too little material there to hold up IMO... Do the basic checks, 2 strokes are very simple and the problem is usually a cheap/easy fix. i agree,if your gonna mess with your timing,get an adjustable stator plate...........The degree keys are prone to shearing off Quote Link to comment Share on other sites More sharing options...
dajogejr Posted November 23, 2006 Report Share Posted November 23, 2006 Check compression...then pull the head off. I'm hoping you didn't twist your crank out of phase.... Quote Link to comment Share on other sites More sharing options...
flea49 Posted November 23, 2006 Report Share Posted November 23, 2006 Check and see it the flywheel rubbed the stator when it spun lose,prolly burnt the stator. Quote Link to comment Share on other sites More sharing options...
bad_shee05 Posted November 23, 2006 Author Report Share Posted November 23, 2006 I checked everything out the best I could and everything seems fine. I checked and i have a good big blue spark from each cylinder. I adjusted my pickeup thinking it maybe got hit when the flywheel spun. But i havent done a compression test but when i put my finger over the spark plug hole it builds up pretty good pressure. Like I said the top end is brand new and is barely broken in. The only thing i didnt replace was the crank but i figured it would be ok. But what i dont understand is one minute itll run great and then its like either the right or the left will just foul out. Then i pulled out one plug and i had smoke coming out of it. And the plug is totally clean but has a bit of oil on it. ?????? im lost. as for the timing key. i learned my lesson. wont ever happen again! . i am going to put an adjustable stator on it for my next mod if i ever get her up and running again. Quote Link to comment Share on other sites More sharing options...
bad_shee05 Posted November 23, 2006 Author Report Share Posted November 23, 2006 I looked at it a bit more today since its light outside and when i looked close i found oil on the right side of the pipe where it goes into the silencer. And i pulled out both plugs and they were wet with black oil on them. I changed the plugs and i choked it and it fired right up, both sides and ran fine and i turned off the choke and after it ran for a second the left side fouled out again. Could i be runing too rich? i didnt change a thing at all except that timing key. I have b-cool head with 20cc domes and my carb is a 35mm trinity carb and i have a 50pilot jet and i think its a 170 or a 175 main. any ideas?? Quote Link to comment Share on other sites More sharing options...
dajogejr Posted November 24, 2006 Report Share Posted November 24, 2006 check all your electrical, wires...etc. check for burnt, broken, shortened wires. Then....if all the wires from head to tail light check out, do a compresion and leak down test. Quote Link to comment Share on other sites More sharing options...
bad_shee05 Posted November 24, 2006 Author Report Share Posted November 24, 2006 Well i checked everything and i cleaned the plugs again and i got the right side started with no problem and then nothing on the left. Well after awhile the left will pop really loud out the exhaust and run and then nothing. i pulled out the plugs and i got a big blue spark out of the right and nothing out of the left. so i put a new plug in the left and i got a small blue spark but not very big. I then checked my voltage to the coil and i have something like 133 when i kick it over. So would i possibly have a bad coil? Why would it go out all of a sudden when i spun the key? Thanks alot for everyones help and advice! Quote Link to comment Share on other sites More sharing options...
Washburn Posted November 24, 2006 Report Share Posted November 24, 2006 My imediate thought is wiring. Pull the flywheel, check the wires by your stator and see if they are chewed up. new plug caps could be it. New pick up coils after that. Then let us know. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted November 24, 2006 Report Share Posted November 24, 2006 I agree... Try new plug caps, they're cheap. Then...I wouldn't buy just a new pickup....a new stator on a plate is 125...the pickup alone is 35 or 40 bucks I think. Kill two birds... Not sure what the voltage is supposed to measure, but....if you pickup a clymers manual, you can OHM test both the stator AND coil. Quote Link to comment Share on other sites More sharing options...
bad_shee05 Posted November 25, 2006 Author Report Share Posted November 25, 2006 I have a manuel and i tested everything. My resistance is alright going all the way to the coil. Then at the coil i either cots an open circtuit or .003. So i ordered a coil. If that doesnt do it i guess ill get a stator. and if that doesnt do it then i dont know! Quote Link to comment Share on other sites More sharing options...
Truckracer Posted November 25, 2006 Report Share Posted November 25, 2006 Check the reeds on the left side but I'm gonna say you have stuck rings on that left side cylinder. Quote Link to comment Share on other sites More sharing options...
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