All posts by dstech

Probable burned belt. Shim mod responsible?

A while back I put in 1.7mm of shim and a purple spring.
Everything seemed fine.

A few times I can remember idling in gear turning the key off, and feeling the Grizzly "relax" when I turned it off, as if it had been straining to get going.

Yesterday I was hearing some growling from the CVT cover so I took it apart, and found a bunch of belt mcnuggets, with the remainder of the belt cracked in many places ready to come apart. The sides of the belt and very shiny.

I haven’t been doing a lot of drag racing or long hill climbs, but I did tow a trailer full of gravel a lot doing trail maintenance with the Department of Natural Resources. But I did use low range for that.

I want to reduce my shim amount in case that contributed to the cause. The fact that the machine was trying to go while idling in gear tells me maybe the shims are causing me to engage the belt too early.

But I don’t want to go back to stock, I don’t want to mess with changing the purple spring back out.

What would be a good shim amount? 1mm? 1.2mm?
What would happen if I removed all shims and left the purple spring in?

Probable burned belt. Shim mod responsible?

A while back I put in 1.7mm of shim and a purple spring.
Everything seemed fine.

A few times I can remember idling in gear turning the key off, and feeling the Grizzly "relax" when I turned it off, as if it had been straining to get going.

Yesterday I was hearing some growling from the CVT cover so I took it apart, and found a bunch of belt mcnuggets, with the remainder of the belt cracked in many places ready to come apart. The sides of the belt and very shiny.

I haven’t been doing a lot of drag racing or long hill climbs, but I did tow a trailer full of gravel a lot doing trail maintenance with the Department of Natural Resources. But I did use low range for that.

I want to reduce my shim amount in case that contributed to the cause. The fact that the machine was trying to go while idling in gear tells me maybe the shims are causing me to engage the belt too early.

But I don’t want to go back to stock, I don’t want to mess with changing the purple spring back out.

What would be a good shim amount? 1mm? 1.2mm?
What would happen if I removed all shims and left the purple spring in?

Grizz 660 4×4 won’t engage………

I have a 2006 660 grizzly and today when i was out for a run the 4×4 wouldn’t engage and no display indicator in the digital display. After a while googling the issue i see that others have had issues with the SERVO on the front diff. Theres no sound from the servo motor due to the 3A fuse under the seat blowing, i installed a 10A fuse just to check if the servo was working and it was working perfect. I then noticed there was a wire ground out on the A Arm coming from the connector from the servo, repaired it and issue still same. Switch on handle bar working fine also.Could it possibly still be the servo even though it engages with the 10 amp fuse fine? Any Ideas? Thanks

Grizz 660 4×4 won’t engage………

I have a 2006 660 grizzly and today when i was out for a run the 4×4 wouldn’t engage and no display indicator in the digital display. After a while googling the issue i see that others have had issues with the SERVO on the front diff. Theres no sound from the servo motor due to the 3A fuse under the seat blowing, i installed a 10A fuse just to check if the servo was working and it was working perfect. I then noticed there was a wire ground out on the A Arm coming from the connector from the servo, repaired it and issue still same. Switch on handle bar working fine also.Could it possibly still be the servo even though it engages with the 10 amp fuse fine? Any Ideas? Thanks

Grizz 660 4×4 won’t engage………

I have a 2006 660 grizzly and today when i was out for a run the 4×4 wouldn’t engage and no display indicator in the digital display. After a while googling the issue i see that others have had issues with the SERVO on the front diff. Theres no sound from the servo motor due to the 3A fuse under the seat blowing, i installed a 10A fuse just to check if the servo was working and it was working perfect. I then noticed there was a wire ground out on the A Arm coming from the connector from the servo, repaired it and issue still same. Switch on handle bar working fine also.Could it possibly still be the servo even though it engages with the 10 amp fuse fine? Any Ideas? Thanks