I have a few questions about general clutching operation, and not specific set ups. Keep in mind, I'm new to sleds and used to motorcycles where the bike starts to move as soon as the clutch is released. (I feel like I'm writing a letter to Dear Abby)
So far, my only sled riding experience has been loading my sled into a tilt bed trailer. My sled also shares a trailer with a Polaris. When I loaded the Polaris, it seemed to require less throttle to get it moving compared to my sled.
When I had my sled in the garage with the track elevated, the track started to move about 4000 RPM. This seems in line with the specs for my sled. So I don't think there are any problems with my clutch.
My questions are;
Why doesn't the clutch engage a lower RPM?
Once under way, I assume you must continually apply some throttle to keep moving, unlike a motorcycle where you can roll off the throttle and coast. Yes or no?
What type of situations would you want a lower or higher engagement RPM?
Does the confusion with this issue go away when you actually get some snow and get to ride for more than 10'?
So far, my only sled riding experience has been loading my sled into a tilt bed trailer. My sled also shares a trailer with a Polaris. When I loaded the Polaris, it seemed to require less throttle to get it moving compared to my sled.
When I had my sled in the garage with the track elevated, the track started to move about 4000 RPM. This seems in line with the specs for my sled. So I don't think there are any problems with my clutch.
My questions are;
Why doesn't the clutch engage a lower RPM?
Once under way, I assume you must continually apply some throttle to keep moving, unlike a motorcycle where you can roll off the throttle and coast. Yes or no?
What type of situations would you want a lower or higher engagement RPM?
Does the confusion with this issue go away when you actually get some snow and get to ride for more than 10'?
caravanman
New member
The clutch only engages after the RPM's come up high enough and spinning centrifugal force pushes the weights out to overcomes the tension of the primary clutch spring.
The engagement speed depends on the power band of the engine.
Example; you'll require a higher engagement speeds when you have a modified engine that makes it power in higher RPM power band. Exhaust pipes dictate this normally.
Here is a great write up on the subject:
http://www.totallyamaha.com/snowmobiles/aaTECH/tuning/tuning.htm
And yes many of these questions will get answered when you start riding, IF we ever get any snow..
The engagement speed depends on the power band of the engine.
Example; you'll require a higher engagement speeds when you have a modified engine that makes it power in higher RPM power band. Exhaust pipes dictate this normally.
Here is a great write up on the subject:
http://www.totallyamaha.com/snowmobiles/aaTECH/tuning/tuning.htm
And yes many of these questions will get answered when you start riding, IF we ever get any snow..
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yamahamark
Member
When you start riding it will all make sense...
Hammer Down
Member
Put it on the stand and watch the clutches work when you give it throttle. You can see everything happening. Just don't put your face or body near the belt with the guard off in case it fails.
Thanks for the answers. I've read the article, and when we get snow, I'm sure it will all make sense.
Vincent
New member
You are seriously over thinking this. You need saddle time. Then all will come together.
