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Discussion Starter #1 (Edited)
Hi all,

New to the forum, I have an '09 Grizzly 550FI Special Edition with all the bells and whistles that I bought last year and am just starting to look into upgrading it some, starting with the clutch. I've looked through all the threads on clutching and can't quite seem to find an answer for a specific question. I have a set of 26" Sedona Mud Rebel RTs on the machine and would like a little more Oomph on the low end, and I have a set of greaseless sliding weights of the Dr. Pulley's variety and a shim kit. My question is, I've been reading through a lot of threads and most people seem to be doing a new machined/aftermarket primary sheave with greaseless weights.....but is that entirely necessary? I was planning on just installing the new weights and shims and calling it good and seeing how that affects the gear ratio/feel of the ride, but is a new sheave necessary with what I'm planning to do as well?

Thanks in advance!!
 

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Grand High Inquisitioner
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You don't need a new sheave to do greaseless rollers/sliders.
 

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X2

Giver her a try, and report back your results. Goodluck
 

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Hey...Topper22..Welcome to GC from Wisconsin.

The sheave doesn't need to be replaced. I've been running greaseless on all of my machine for thousands of miles without any problems.
While you have it apart I would recommend that you service the secondary. Clean it, the secondary does require grease so re-grease it.
Be careful to hold the cam plate in while installing the primary.

Always use a torque wrench and rotate the belt out as you tighten everything up.
Check that you have about 2mm of threads showing past the primary nut.

Start it up and rev it a little to seat the belt then check that the nut and washer are still tight and that belt is not rubbing too much.
 

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Discussion Starter #5
Knocking with new rollers.

Thanks guys. I went ahead with it and I ended up servicing everything while I was in there. Everything works well after putting it back together, got a little more torque out of the deal.

One other question, there is just a slight knocking coming from the primary clutch now. Idles just fine with no knocking, and once the clutch engages there is no knocking, but that split second between idling and the clutch engaging there is a touch of knocking, which I'm assuming is because of the new greaseless rollers (Dr. Pulleys square-ish type) not having any grease to silence them when they move outwards. Is this right or should I be a little worried??
 

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Thanks guys. I went ahead with it and I ended up servicing everything while I was in there. Everything works well after putting it back together, got a little more torque out of the deal.

One other question, there is just a slight knocking coming from the primary clutch now. Idles just fine with no knocking, and once the clutch engages there is no knocking, but that split second between idling and the clutch engaging there is a touch of knocking, which I'm assuming is because of the new greaseless rollers (Dr. Pulleys square-ish type) not having any grease to silence them when they move outwards. Is this right or should I be a little worried??
Your spot on. It's normal to hear noises from the clutch with a greaseless setup. Actually, some make noises even with the grease.
 
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