wildbonz
Extreme
Hi. I rode about 75 miles yesterday. We were going across a lake on the way home, about 70-80 mph. It slipped and revved up like a belt blew. I let off throttle, then it re-engaged. I kept going another mile or so and it did it again. Only for about a second each time. I slowed down to 50ish and then it started feeling worse. I thought maybe the belt was coming apart. I stopped and then when I tried to move ahead, it would, but there was a bad grinding noise.
I took off the covers, and the belt was fine. There was no obvious sign of anything wrong. Tried another belt, same thing.
Towed it back the rest of the way. Put it on the trailer, ran it without the belt for a test, revved it and the clutch seemed to work properly. No grinding, clutch looked to operating properly. Put the belt back on and as soon as it engages, there is the bad sound again, in forward or reverse.
The sheaves do seem a bit wider than normal...maybe. The belt sits right down and has some wiggle room. Is it a bad bushing, maybe?
After removing the clutch, it looks OK, and the motor side looks good, no apparent problems there.
I need help. The clutch is off, and I need help to know where to start.
06 Attak. Drag n Flys. About 3300 miles. Well maintained.
Thanks
I took off the covers, and the belt was fine. There was no obvious sign of anything wrong. Tried another belt, same thing.
Towed it back the rest of the way. Put it on the trailer, ran it without the belt for a test, revved it and the clutch seemed to work properly. No grinding, clutch looked to operating properly. Put the belt back on and as soon as it engages, there is the bad sound again, in forward or reverse.
The sheaves do seem a bit wider than normal...maybe. The belt sits right down and has some wiggle room. Is it a bad bushing, maybe?
After removing the clutch, it looks OK, and the motor side looks good, no apparent problems there.
I need help. The clutch is off, and I need help to know where to start.
06 Attak. Drag n Flys. About 3300 miles. Well maintained.
Thanks
woolyviper
TY 4 Stroke Master
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- 2009 Yamaha Phazer RTX
i would look at your drive bearings and open up the chain case. probably see something obvious there.
nate007
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If the drive shaft and bearings look ok, try the chain adjuster before you tear it apart. Youcould save yourself alot of work..
Back off the jamb nut, and adjust the screw in as hard as you can with your fingers, then add about 1/2 turn with a wrench, but do it with the belt off and/or rotating the secondary back and forth to be sure you're removing the slack in the chain.
I'm assuming your sled has reverse too, so just be sure the reverse mechanism isn't sticking and trying to dis-engage the drive gears. I've seen the torque of the engine make it act like it's "popping out of gear". Just a few little checks that may save a mess..
Back off the jamb nut, and adjust the screw in as hard as you can with your fingers, then add about 1/2 turn with a wrench, but do it with the belt off and/or rotating the secondary back and forth to be sure you're removing the slack in the chain.
I'm assuming your sled has reverse too, so just be sure the reverse mechanism isn't sticking and trying to dis-engage the drive gears. I've seen the torque of the engine make it act like it's "popping out of gear". Just a few little checks that may save a mess..
nate007
Lifetime Member
- Joined
- Dec 25, 2006
- Messages
- 2,770
- Reaction score
- 60
- Points
- 1,333
- Location
- Iowa City, Iowa
- Country
- USA
- Snowmobile
- 1. '06 Apex -twin screw
2. '04 Redline Revolt 800
3. '09 Nytro XTX - twin screw
If the drive shaft and bearings look ok, try the chain adjuster before you tear it apart. Youcould save yourself alot of work..
Back off the jamb nut, and adjust the screw in as hard as you can with your fingers, then add about 1/2 turn with a wrench, but do it with the belt off and/or rotating the secondary back and forth to be sure you're removing the slack in the chain.
I'm assuming your sled has reverse too, so just be sure the reverse mechanism isn't sticking and trying to dis-engage the drive gears. I've seen the torque of the engine make it act like it's "popping out of gear". Just a few little checks that may save a mess..
Back off the jamb nut, and adjust the screw in as hard as you can with your fingers, then add about 1/2 turn with a wrench, but do it with the belt off and/or rotating the secondary back and forth to be sure you're removing the slack in the chain.
I'm assuming your sled has reverse too, so just be sure the reverse mechanism isn't sticking and trying to dis-engage the drive gears. I've seen the torque of the engine make it act like it's "popping out of gear". Just a few little checks that may save a mess..
