Problem with 2004 Suzuki Eiger 400
Hey guys, I have a problem with a 2004 Suzuki Eiger 400 4x4.
Basically I'm getting sort of a "whirring" sound from the engine. It came on over time and is now to the point where it's pretty much always there and very noticeable. It follows the RPMs through the entire throttle range, though it is more noticeable when not at idle. The sound is present when in neutral and not moving.
I cannot pinpoint the location at all so far. I've read that the timing chains on these quads stretch fast, and I have a friend who made that suggestion first. I pulled the chain tensioner off and it was not maxed out, but it was about 2/3s to 3/4s extended. I was thinking maybe that's as far as the guide will move? Maybe it doesn't have to be all the way extended to no longer be working?
Since I had that tensioner off, I swear the noise is worse and much more noticeable, but honestly it could just be my imagination.
Any ideas would be greatly appreciated.