Sticky Secondary 2002 Viper

O

Oneblown86

New member
Joined
Oct 14, 2012
Messages
28
Age
38
Location
Ct
Sometimes my secondary clutch sticks open, and by sometimes I mean twice in 700 miles. Both times were on warm days, the first time after exiting a stop and go town, I went off trail only by a few feet stopped then tried to exit in the deep snow and she sank the rear then started slipping the belt. When I opened the hood the secondary was wide open and belt was floppy. The second time was just the other day, I was towing my niece around the yard at low speed, and when I stopped to fix the tube and tried to restart the same thing, clutch was stuck open.

It is worth to note that the second time, there was noticeable slipping here and there around the yard from the belt noise, and the clutch was really hot. I wait a few minutes, pull the belt away from the clutch as much as I can and just give it a little bump when cool and it clunks back together. Other than these two incidents and the addition of the low speed belt slip that showed up this year (belt has less than 300 miles), I think its fine. I did adjust the clutches and made sure they were aligned the best I could last year after I pulled the water pump to do the seal. I don't have a alignment tool, but used the measurements I could find to align them, and the starter does engage just fine.

Is it something worth fixing, or is it just a fluke that happens here and there on the Yamaha's? My ski doo never did this that I can remember, and the Polaris I had before it was also fine. Ive only had the sled a little under two years and put about 700 miles on it so far.
 
which bushing is that? Is this the type of part that is a trip ender or will the clutch just stick open every once in a while when hot?
 
The sled only has about 2000 miles, is that a normal failure point with that low of mileage, or maybe it just needs to be taken out and cleaned up a bit and put back?
 
sure, it can be a trip ender as if it sticks bad and your way out on the trail away from everything...........your screwed.

its likely getting worse as the sled with only 2000 miles would have sat alot,do to it was likely run with corrosion on the shaft from being stored a long time, as the sled simply overpowers the clutch bushing and forces it over the corrosion and then chews up the bushing.

It possible to take it all apart and clean it, sand the sheave shaft, and clean up the bushing in the sliding sheave. It might work for awhile,but usually if its hangin up the bushing will need replaced.

the bushing is like $24 new from yamaha, not a common replaced part but they go bad like I said from storage and running the sled without cleaning the clutchs at the season beginning.
 
do you happen to know what the part number is? I think I know what you are talking about but I don't want to order the wrong part.
 
Update:

The sheave bushing was a little marred on the ends and around the outside. Nothing a little Emory cloth and a fine tooth file didn't take off to smooth the shaft out with minimal material loss. The marring was sticking on the clutch surfaces caisson the clutch to get stuck on the imperfections and not close. Thank you for your m help
 
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