Clutching comprimise? - Yamaha Grizzly ATV Forum
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post #1 of 3 Old 04-19-2017, 08:22 AM Thread Starter
 
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Clutching comprimise?

I have been doing a lot of reading on clutch kits. From what I have read I have to sacrifice speed for torque. Is there a clutch kit that will not effect my top end? If not what kind of top end speed can I expect to loose? I am not a speed demon But I can't have my brother beat me on his Polaris or I will never hear the end of it. That is of course after he gets his axle fixed
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post #2 of 3 Old 04-19-2017, 08:27 AM
 
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Mate I use the hunter works sheave. I have found it to work very well with little loss of the top end speed. I did however add some shims latter to further improve my bottom end. I lost about 7 km/ p/ h. About 5mph. I lost more top end by putting big Mud tyres on my ride then then 1.5mm shim took off. It's all about swings and roundabouts. What you loose in top end you'll pick up in the mud. Lol


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2015 Grizzly 700

HW Sheeve with 1.0 mm & Purple Spring
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post #3 of 3 Old 04-19-2017, 09:10 AM
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Most modified sheaves will let you retain the top end. You can go further with a modified Cam Plate, like Coop45's Mod #2, and get more top end. Shims are the modification that reduces the top end, although not that much, depending on how much shim you put in.

2004 660, 25" BigHorns, 1.5mm shim, 2.85:1 ratio, orange spring, Garmin 60CSx, Pioneer fuel pack, STi HD6 rims
2013 700EPS- Coop45 Mod#3, .7mm shim, 3.1:1 ratio, Purple Spring, Roto-Pax, 25" Bighorns, ITP SS-112, Garmin Montana 600, Plano 1510 rear box
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