tdod101 Posted July 30, 2013 Report Share Posted July 30, 2013 I've been noticing the last few times I went riding, that everything seems to be vibrating more and more especially at idle. Mid and high rpm not so bad but it never used to be like this, ever since I installed my nerf bars its been getting worse. Could it be the rubbers are starting to deteriorate ? Quote Link to comment Share on other sites More sharing options...
n2otoofast4u Posted July 30, 2013 Report Share Posted July 30, 2013 does it seem to have the same power in the same places that it always has? Quote Link to comment Share on other sites More sharing options...
tdod101 Posted July 30, 2013 Author Report Share Posted July 30, 2013 (edited) Yes, performance hasn't changed a bit Edited July 30, 2013 by tdod101 Quote Link to comment Share on other sites More sharing options...
possum Posted July 30, 2013 Report Share Posted July 30, 2013 Crank came out of balance! Quote Link to comment Share on other sites More sharing options...
n2otoofast4u Posted July 30, 2013 Report Share Posted July 30, 2013 Thats exactly where I was going with my question. Id bet the crank has come out of phase. Quote Link to comment Share on other sites More sharing options...
#1JUANstunna Posted July 30, 2013 Report Share Posted July 30, 2013 I had one start to separate once and come out of phase with the same symptoms plus a slight knock at idle Quote Link to comment Share on other sites More sharing options...
fastbanshee8 Posted July 30, 2013 Report Share Posted July 30, 2013 Could be a bad crank bearing. Quote Link to comment Share on other sites More sharing options...
blowit Posted August 4, 2013 Report Share Posted August 4, 2013 If you are close on a top end or at least what to know what is going on, usually cranks will separate as they go out of phase.so you can simply inspect the thrust washer clearance on the crank journals if you pull the cylinders. The banshee engine is inherently balanced well as a 180* phased twin so imbalance is a concern. It my also be worth while to remove the LH side cover and put a dial indicator on the flywheel and determine the TIR or totoal indicated runout. It is rare there would be an issue but if magnets breaks down, it will certainly cause this. Personally, I would find the cause BEFORE it is too late. I remember looking at an engine for a member after he went through a crank or two. flywheel imbalance will break a crank right off. Brandon Mull Engineering Quote Link to comment Share on other sites More sharing options...
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