2006 Apex

[MIRX1]

Hey everyone! my friends 06 Apex GT is according to him making some strange powertrain vibrations. And at work today he was asking me about it, i had no real idea so i turn the experts, a little backround on the sled and more on the "vibration". The sled has a full exhaust and is clutched, (a aggresive setup). the vibration, he said happens when hes off the gas and gets in the gas again, (it doesnt have the engine brake tho due to the clutching) and it goes away after say 5 seconds. on comparison to my sled (07 Attak) i dont feel anything unnormal but i havent a chance to ride his yet. any suggestions or tips much apreciatied. Happy Riding on those Yamaha's!

 

[TBay Sledhead]

Wher is the vibration being felt?

 

[MIRX1]

He said it felt like in the clutching or drive axel but he's unsure

 

[scar]

Check the jackshaft bearing.Lots of info on this Site.

 

[TBay Sledhead]

Try changing the belt. Mine did that, half way thru the day I had a vibration, Change belt that looked fine but obviously had a flat spot in it. Jack shaft or drive shaft bearings.

 

[MIRX1]

Thank you all, at least we have starting point, and with his sled having 9200 miles im not that surprised, i'll check it out for him thanks again

 

[arcticace]

belt or broken spring in primary or secondary, i had jackshaft bearing go behind secondary, did similar noise off throttle to on throttle.