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Tool Talk Discussion Forum

slipping snowmobile clutch

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baler46

01-16-2007 18:11:52




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Hi

Just wondering if any one know way a snowmobile clutch slips when you are riding it some times it will just speed up the engine and not move when you give it the throttle, is it the clutch or belt wore out there are no groves in the belt.This belt is not that old but does not get ridden a lot.Does the clutch need cleaned.Will a new belt fix my broblem? thanks Its 1977 ski-doo Everest

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buickanddeere

01-19-2007 15:08:43




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 Re: slipping snowmobile clutch in reply to baler46, 01-16-2007 18:11:52  
Both clutches require a complete cleaning and light lubrication at least yearly. If the secondary isn't squeezing the belt tight enough she will slip. Is the motor requiring an adjustment to move the primary away from the secondary pulley?



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baler46

01-20-2007 08:09:36




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 Re: slipping snowmobile clutch in reply to buickanddeere, 01-19-2007 15:08:43  
Hi Just a quick question wondering what i would clean and lub the clutch with ,I'm going to clean it and see if that helps any ,the belt is not that old,but it get rode around the yard a lot with stop and go starts does that shorten the belt life too?



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landlord7012

01-19-2007 16:01:56




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 Re: slipping snowmobile clutch in reply to buickanddeere, 01-19-2007 15:08:43  
Good points but if the secondary spring is week it will just bog not slip. I don't believe that sled has much for adjustment like the classic sleds had. Later sleds are all designed unique (read very little interchangability) so they can place the motor exactly where they need it and bolt it down. However, it could be the sled has a bent chassis causing clutch alignment and spacing to be off. Also, I read his post closer noting "no grooves". I think he means the cogs are gone which is a sign of severe belt distress due to misalignment. That would cause serious slippage.

ll

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Farmall Don

01-18-2007 15:22:33




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 Re: slipping snowmobile clutch in reply to baler46, 01-16-2007 18:11:52  
When ever mine does this I change the belt and that fixes the problem. I may try the sandpaper trick next time, since it seems the go alot for the little use.



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Rod in Smiths Falls, ON,

01-16-2007 19:54:51




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 Re: slipping snowmobile clutch in reply to baler46, 01-16-2007 18:11:52  
If there's any leakage from your muffler the oil in the exhaust will get onto the belt and create that effect. It wasn't impending deafness that made me replace the muffler on my old Olympic: the belt slipped so badly the machine could barely move in heavy snow.



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landlord7012

01-16-2007 18:46:31




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 Re: slipping snowmobile clutch in reply to baler46, 01-16-2007 18:11:52  
belt and clutch faces are probably glazed over. use some 120 grit emery cloth followed by scotch-brite. finally wipe it down with mineral spirits or denatured alcohol. replace the belt or it will just glaze over again. once back together carefully support the rear end up while working the throttle to make sure both primary and secondary are engaging and shifting out properly. most importantly be careful.

ll

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landlord7012

01-16-2007 18:51:37




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 Re: slipping snowmobile clutch in reply to landlord7012, 01-16-2007 18:46:31  
I should add that this is the first place to start and that if what I suggested does not work that you locate a mechanic to help you. It is possible the primary clutch needs rebuilding (ramps, rollers, springs and weights)

Good Luck! ll



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