zachass9 Posted February 16, 2009 Report Posted February 16, 2009 Just bought another 2004 banshee and upon removal of topend, I found that the pipes and the bottom end were full of fuel!! Do I need to split the cases and check the crank and bearings? May be a stupid question, but I dont wanna waste time and money!! Definately going to have to rebuild the top end and it already has a hot rod crank, just wanna see what to check to see if I need to split the cases or not!! Any and all info will help! Quote
locogato11283 Posted February 16, 2009 Report Posted February 16, 2009 i think i probably would. no sense in taking the chance and having it possibly tear something up worse. i know that the bearings and seals will stand up to a little gas/oil mix, but i dont know about it just sitting there for months full. sounds like a recipe for disaster. Quote
AKheathen Posted February 16, 2009 Report Posted February 16, 2009 just my .02, but i baught a sled that had been sitting for more than 6 months full of fuel, not premix, and i dumped it out, replaced the float needles, and have been running on 5th season now :shrug: Quote
RUDEDAWG Posted February 16, 2009 Report Posted February 16, 2009 Probably take the engine out of the frame and fill the crankcase full of pre-mix oil and dump it out after a couple of hrs. since you have the jugs off already. The oil will dilute the gas and wont hurt any internal parts or seals, :thumbsup: just a thought. Quote
jlsparky7 Posted February 16, 2009 Report Posted February 16, 2009 How long has it been like that? Rotate the crank and see if you can find any rust. If not I say not need for a bottom end rebuild. Quote
wayfast1500 Posted February 17, 2009 Report Posted February 17, 2009 That useto happen to me on a old gs 750 I had. Drain the gas, either rebuild the carbs because thats caused by the needle leaking or shut the petcock off after each run-risky because if you forget then restart it boom, just flush the bottom end out, make sure you fill it with some oil, let the case vent out for a few hours then run it. Ive done it that way with no issues on a few atvs and motorcycles. Quote
Rodneya Posted February 17, 2009 Report Posted February 17, 2009 Your float bowls should drain out he overflow and not fill up the crank. I bought a RZ once that stood 4 months with the crank and pipes full of fuel. The overflow tubes were blocked off and the needle valves were shot. Fixed the carbs and drained the fuel and fired it up. Apparently there was still some fuel in the pipes which led to an unexpected flamethrower moment. The motor ran strong for 2 years until I sold it Quote
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