Starting to hear a noise that sounds like pulsing metal on metal squeaking. It is only happening when riding in the rain. I notice the sound doesn't happen when I'm accelerating or maintaining acceleration. When I let oof the accelerator it starts. If I pull in the clutch, it quits. Engage the clutch and it starts up again. Like I said, it's only happening when it rains. Any ideas what might be doing this?

Scionic

 

Drive belt.

 

A too tight drive belt Is often a problem,,It can bind the suspension on a bike with
enough rear suspension travel for the swingarm to pass through a "Level" plane.
Also a belt can ride hard against the side of the rear pully due to a slightly
misaligned rear tire. This can cause a problem like yours.

First Inspect the belt carefully, then check rear wheel alignment
then check tension.
With your thumb and pointer finger only Grab the belt In the middle
of both sprockets..
You should be able to twist the belt to the vertical,,no farther.

Belt tension guages,,Pffft Time to go Old school.

 

Man, busy weekend, didn't login to computer all weekend, just got these messages.

Ok, I ran out to the parking garage this morning, the belt shows no signs that it needs to be changed. No cracks, pieces missing, or damaged "teeth?".

I did the twist test, and without using two hands and my body weight, I could not get it straight up and down. I made it 2/3 of the way. So, I can relieve a bit of tension.

As for alignment, using a metal rule, where would I measure? From the axle, what reference point can I measure to check, as accurately as I can, both sides for alignment?

Thanks for the responses, slowly but surely I'm learning more about my bike. I love working on it myself.

- Scionic

 

Correctly adjusted for tension, the belt should twist 45*. (That's 1/2 way between flat & straight up )

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