BansheeBoy17 Posted July 19, 2004 Report Posted July 19, 2004 Alright as you may know i just rebuilt my whole banshee by myself. Stuck a new hotrods crankshaft in there, and new wiseco pistons (same size bore as before, just newer pistons) Anyways... We got it started last night and it had absolutly no power at all in the low end , it bogs forever but then after 4 seconds of floorin it , it would hit the top end like a normal banshee. I adjusted the air screw thinking that was it. So i took it around the track thinkin maybe sumthings stuck in the gas. Wll about haflway through a lap it starts pouring smoke out the right side pipe. So i get towed back to the truck to check things out. It still has equal compression on both cylinders and starts fine. Just smokes alot on the right side. I pulled the whole top end off down to the cylinders 3 times , reeds are fine, carbs clean, everything else clean. So what could it be? Its not the tors either cause i plugged those in and unplugged those, it was the first thing i checked, and its not the parking brake cause i have a blockoff for that. Everything ran fine before the rebuild... Should i tear it apart again all the way to the bottom and give it another shot? Would something like a oil seal cause this? I'm thinkin I may have put one in backwards but not sure if that would matter. Quote
roosthrower Posted July 19, 2004 Report Posted July 19, 2004 have you tried to sync the carbs? how do your plugs look? I recently replaced an oil seal for my banshee, but it didn't have the syptoms that you are describing. My shee would just foul plugs after every ride. If you do end up tearing it down, do a leakdown test on it. Quote
BansheeBoy17 Posted July 19, 2004 Author Report Posted July 19, 2004 Yes carbs are sync'd ... we even tried switching the slides around to see if they were backwards but same effect... Quote
banshee04le Posted July 19, 2004 Report Posted July 19, 2004 It sounds like the crank seal on the clutch side to me. Take the pipe off of the right side and look for signs of tranny oil in the pipe. If there is oil, it is the crank seal. Quote
boonman Posted July 23, 2004 Report Posted July 23, 2004 Also, look for a distinct smell of shit. tranny oil smells like shit when it burns. what color is it? Also, you tore it all down? what did you use to seal the cases back together? Did you use all NEW gaskets? Lube the seals properly? Clean the carbs out? Are the reeds broke? Could be alot of things, but you were just in the motor, so that seems like a likely place, but could be a coincidence. You say you had equal compression. What was it? Did you use new rings? If you did, and didn't hone the cylinders, you can bet your ass that the rings didn't/may not have seated properly...... Quote
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