Thread: Whining sound
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Old March 12th, 2018, 04:48 PM   #28
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Name: Roger
Location: Mitchell, South Dakota
Join Date: Apr 2014

Motorcycle(s): 1978 Z1R, 1999 EX250

Posts: A lot.
MOTY - 2018, MOTM - Oct '16
Quote:
Originally Posted by Hesh View Post
Nope, no whining when I pull the clutch in and coast.

Here's another video where you can hear the same whining/whirring easily. Starts at around 0:11 sec. https://www.youtube.com/watch?v=5zJiZaIwfyk



I am not sure I even understand what you mean, but it doesn't sound right. Maybe check out the 2nd vid, the whine there is pretty obvious. Could help.


Sure sounds like gear whine to me. The primary gears are straight cut so they always whine a little. There are 2 gears on the crankshaft, one drives the counter balancer and on the other end of the crank is the primary gear that drives the clutch. I'm pretty sure what we're hearing in the videos is primary gear whine, I've got 3 Pre-Gens and one of them (the fastest one) is noticeably louder than the other 2, that can barely be heard. The one in the 2nd vid is quite a bit louder, but it could be differences in the cameras or how or where the camera is mounted. I always thought it sounded kinda cool on my Z1R, sounds a little like blower whine.
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