superdutymj

OK, I've been in a neverending battle with my banshee for the past month or so. I rebuilt the engine and tranny, and the carbs too. It now runs on race fuel. Here's my problem: the left cylinder isn't firing. I first ran a spark test, no spark. I replaced the sparkplug caps, no spark. I checked the ignition coil, it didn't meet specs, so i replaced it. Still no spark. Has anyone had this problem? I talked to a guy down at the local atv shop and he's never heard of it. Not knowing how the ignition system works entirely, i am wondering if its not in the stator or magnetic pickup somehow. I haven't pulled the stator cover back off, due to the huge pain in the ass of messing with the ac propegs, so i don't know if maybe a magnet got knocked off or something. Please help!!!

Great news! the banshee rides again! It ended up being both my spark plug caps were bad. I can handle an $11 fix! I filled it up with race gas too, the VP 105 variety. it wasnt detonating with the 91, but the rings hadn't really been seated yet so i decided to play it safe and traded an arm and a leg for 5 gallons of fuel. Thanks everyone who responded for their help and time! This is a great forum and i tell all my banshee friends about it!

ok, sorry to take so long to respond, but just a little update on the no start condition: still don't start. I tore the carbs down to the housings, taking out everything and cleaning and blowing every orifice out with compressed air. still wont start. i have a KN filter on it so it doesnt have those butterflies in the air filter housing. this bike ran great before shelling the crank bearing so i can't figure out for the life of me why it won't start. i will fill her up with race fuel tomorrow and try that, but doubtful since it pull starts so easily. i'm thinking it may be weak ignition since it won't even kick with wd40 sprayed down the sparkplug holes.

I did a complete overhaul of my '98 banshee and am having trouble getting it to kick start. i can pull-start it and it will fire right up moments after dumping the clutch. I can kick it over all day and it wont start. Once i pull start it it will run forever...as long as i dont let it idle. as soon as i come to a stop and try to let it idle, it stalls. With these symptoms, im tempted to think its carb problems, since those are the only things i didnt work over. i'd love some input before i tear all the plastic off again and pull the carbs for a rebuild. everything was running fine before the rebuild until a crank main spit out the rollers. i put in a new crank, all new tranny bearings, seals, yamabond on the casing halves, clutch, flywheel/stator, degree key (yes it's installed correctly, double and triple checked) .040 over pistons, and 18cc domes in my cool head. Im running 91 octane with octane booster and 32:1 oil mixture with Lucas 2Stroke SemiSynthetic mix oil. I built the motor to run race fuel, but my local vp dealer charges 6.75 a gallon so i went with the 91 and additive. I dont think this is a problem since it runs great when pull started.

if you have a stand for your 'shee that would be best to drill with the bike sitting level. or stand it up and put grease on the drill and on the tap you are using to catch the shavings.