2wheelturned4 Posted December 23, 2012 Author Report Share Posted December 23, 2012 nah didnt check piston to bore clearance, it all came from athena as a bolt on kit. Water pump and radiator are brand new with the rebuild, i just put a standard water pump in with an oversize radiator. Side by side comparison of my old barrels with the athena ones shows the intake ports are noticeably bigger, but i havnt measured anything as of yet. I would say by the looks of the dome and the slight pitting in the head that maybe the skirt has ended up on top of the piston somehow?? if thats possible... may explain the crown damage. Would it be a heat issue to break both skirts or a detonation issue? my pick up gap was way out and it was carrying on like a pig down low once it was hot. Where would be a good place to pick up a set of 67.95mm pistons to throw it back together? As you can probably tell im pretty new to the whole banshee bug. I have had a few 2 wheel 2 strokes and never had a drama with jetting or rebuilds... had some drama with my ktm 525 4 stroke which was a never ending story but never had drama with 2 strokes, its doing my head in! Quote Link to comment Share on other sites More sharing options...
2wheelturned4 Posted December 23, 2012 Author Report Share Posted December 23, 2012 this computer wont let me upload pics... not sure why. what brand piston would be good for this rebuild? 67.95mm?? Quote Link to comment Share on other sites More sharing options...
1bad4millbanshee Posted July 5, 2013 Report Share Posted July 5, 2013 nah didnt check piston to bore clearance, it all came from athena as a bolt on kit. Water pump and radiator are brand new with the rebuild, i just put a standard water pump in with an oversize radiator. Side by side comparison of my old barrels with the athena ones shows the intake ports are noticeably bigger, but i havnt measured anything as of yet. I would say by the looks of the dome and the slight pitting in the head that maybe the skirt has ended up on top of the piston somehow?? if thats possible... may explain the crown damage. Would it be a heat issue to break both skirts or a detonation issue? my pick up gap was way out and it was carrying on like a pig down low once it was hot. Where would be a good place to pick up a set of 67.95mm pistons to throw it back together? As you can probably tell im pretty new to the whole banshee bug. I have had a few 2 wheel 2 strokes and never had a drama with jetting or rebuilds... had some drama with my ktm 525 4 stroke which was a never ending story but never had drama with 2 strokes, its doing my head in! i put a brand new billet water pump in too but what happened is where the shaft goes into crankcase when u put on clutch side cover it was really tight and it didnt wanna spin so right on intial start up after assembley it broke that gear right it half didnt even know it check flow in radiator if not sure pop that water pump shroud off take the plate off and c if u can spin it if it does order some parts and get a drill bit to clean that guide hole in case just to clean it up so water pump spins free it was a bummer same thing happened to me on brand new weisco piston took a chunck outta intake side looked like ring snag but i also noticed studs where loose when toook jug off investagate Quote Link to comment Share on other sites More sharing options...
lil Doobie420 Posted July 5, 2013 Report Share Posted July 5, 2013 wiseco pistons all day Quote Link to comment Share on other sites More sharing options...
dozer Posted July 5, 2013 Report Share Posted July 5, 2013 You need to find out what the issue was before you put it back together and hope for the best. It doesn't matter what brand piston you have if something isnt right. Quote Link to comment Share on other sites More sharing options...
tdod101 Posted July 5, 2013 Report Share Posted July 5, 2013 Could be a bent rod, or maybe the crank is out of whack 1 Quote Link to comment Share on other sites More sharing options...
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