Wierd clutch noise - Yamaha Grizzly ATV Forum
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post #1 of 6 Old 05-11-2019, 05:30 PM Thread Starter
 
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Wierd clutch noise

Whirring / grinding noise from the clutch coming down to idle and primary stopped. When the primary is spinning , there is no noise. I checked the one way function and it does turn the motor clockwise and free wheels counter clockwise with the belt off. I replaced the one way with new oem yamaha part. No diffrence at all. 1.5 shim w/clean grease on the rollers. New yamaha belt approx. 2.8 ratio. 2009 grizzly 700. Any suggestions?

04' Grizzly 660 .010 over
26" Maxxis B/H on Black Rock Revo 2+5
1.5 mm shim / JBS Sheave
Chrome moly rear axles
5" Rox Riser / Tusk bars
Stage 2 Hot cam
Airbox lid mod
MBRP Exhaust
Purple spring

08' Honda Rincon 680 - SOLD

09 Grizzly 700SE Midnight Red Armour
26" Rocktane XD ITP SS108
1" wheel spacers
Warn winch
Yamaha oversized pegs
Pelican 1490 box
1.0 mm shim
Rotopax 2 gallon w/ storage box
5" Rox riser combo kit

www.pitpal.com
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post #2 of 6 Old 05-11-2019, 06:47 PM
 
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Your probably just rubbing on the primary sheave cover. Find the spot and just grind it down a bit.

My cover had some casting flaws that were rubbing real bad with 1.5 mm shims. Sanding wheel on the grinder took care of that.

2009 Grizzly 550 Special Edition, Red Midnight Armour, EPS, 26"Pitbull Growler BG2.5 xor, on 12"polished alloy SE wheels with 1"spacers, Yamaha overfenders & windshield, Heat Demon grips & thumb warmers, 2500lbs Warn winch, two up seat / storage box, Moose rear bumper, Gold Plugs in diffs & engine, Pod Mod set to 45, COOP45 machined sheave (3:1), 18 gram weights, EPI Orange spring

Last edited by Vincent; 05-11-2019 at 07:01 PM.
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post #3 of 6 Old 05-11-2019, 06:54 PM Thread Starter
 
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The cover is off with noise.

04' Grizzly 660 .010 over
26" Maxxis B/H on Black Rock Revo 2+5
1.5 mm shim / JBS Sheave
Chrome moly rear axles
5" Rox Riser / Tusk bars
Stage 2 Hot cam
Airbox lid mod
MBRP Exhaust
Purple spring

08' Honda Rincon 680 - SOLD

09 Grizzly 700SE Midnight Red Armour
26" Rocktane XD ITP SS108
1" wheel spacers
Warn winch
Yamaha oversized pegs
Pelican 1490 box
1.0 mm shim
Rotopax 2 gallon w/ storage box
5" Rox riser combo kit

www.pitpal.com
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post #4 of 6 Old 05-13-2019, 04:36 PM Thread Starter
 
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www.youtube.com/watch?v=y1qMAUHXDgs

04' Grizzly 660 .010 over
26" Maxxis B/H on Black Rock Revo 2+5
1.5 mm shim / JBS Sheave
Chrome moly rear axles
5" Rox Riser / Tusk bars
Stage 2 Hot cam
Airbox lid mod
MBRP Exhaust
Purple spring

08' Honda Rincon 680 - SOLD

09 Grizzly 700SE Midnight Red Armour
26" Rocktane XD ITP SS108
1" wheel spacers
Warn winch
Yamaha oversized pegs
Pelican 1490 box
1.0 mm shim
Rotopax 2 gallon w/ storage box
5" Rox riser combo kit

www.pitpal.com
Fixrguy is offline  
post #5 of 6 Old 05-13-2019, 08:56 PM
 
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Might be a bad bearing inside the clutch housing.

Twin sister 16 Kodiak EPS 700 Dirty Egg Salad (Camo)
Grezzzless CVT 22g
26.5" Pitbull Growlers Uber XOR
STI HD1 Beadlock Wheels


Hers 16 Kodiak EPS 700 Camo
26.5" Pitbull Growlers Uber XOR
STI HD1 Wheels


2013 Ole blue 700
Putting out to Stud 21365 miles
360/120 CVT
26" ML XTRs
stocker wheels
grezzzless clutch.
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post #6 of 6 Old 05-14-2019, 05:25 AM
 
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At idle the clutch housing does not rotate. It is carried by a large bearing in the cover and it rides on a small bearing inside the housing on the wc.
When the WC locks up the small bearing stops rotating

Twin sister 16 Kodiak EPS 700 Dirty Egg Salad (Camo)
Grezzzless CVT 22g
26.5" Pitbull Growlers Uber XOR
STI HD1 Beadlock Wheels


Hers 16 Kodiak EPS 700 Camo
26.5" Pitbull Growlers Uber XOR
STI HD1 Wheels


2013 Ole blue 700
Putting out to Stud 21365 miles
360/120 CVT
26" ML XTRs
stocker wheels
grezzzless clutch.
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