off topic clutch wieght ?

[AL P]

hey guys, I`m just wondering how much of a differance 3.5 grams usually makes in engagment ect. ? I`m working on a non vmax snowmobile, and had to replace the clutch, and the one i got, has the same spring, but the wieghts are 3.5 grams lighter. how much effect will this have on things? thanks

[Busted Max]

im no expert at all. in fact i have never had to do a clutch. but shouldnt lighter weights should increase the engagment rpm?
or am i wrong??

[AL P]

No your right. I`m just trying to figure out if its going to make a HUGE differance, or just raise it a little? i have my original wieghts, but it would to be a major pain in the azz to swap them out. again, this is not a vmax clutch, or even a yamaha, so thats why changing the wieghts in it, would`nt be too easy. I`m really hoping i can get away with running the 3.5 grams lighter wieghts? that way, i can just throw the clutch on, and be done with it. but I`m thinking 3.5 grams might make it engage way too high? thanks

[Master of Faster]

3.5 grams is ALOT. Engagement is going to depend on where there weight is located more so than the total weight. It's possible that the engagement will be the same but it will overrev on the top. So basically it depends WHERE the weights have less weight than the others and also the shape. A weight with a more aggressive (more curved) profile will actually create more force with less weight. For example: A dalton 57.5gr weight creates more force than a 70+ gram stock RX-1 weight because of the profiles.

So really, it's hard to tell, maybe if you had a side by side photo to compare?

[Turk]

The biggest diff in engagement is primary spring pre load ; initial curvature of weight & size of rollers. The inner hole has a very slight effect on engagement but not as much as the previous 3 factors I mentioned.

[AL P]

okay, I`ll try to describe the differance. they both look to have the same curve so I`l try to describe the only differance i see. for example: lets say the tip of the wieghts are square, if the clutch was fully engaged, the tip of the wieght that is 3.5 grams lighter, would have the corner cut off, on the opisite side of the tip where it would be pushing against the roller. Thanks!

[Turk]

The initial part of the weight(heel) has the affect of engagement. The tip has zero effect on engagement.

[AL P]

thanks guys, i ended up just putting my original wieghts in it. i thought it was going to be alot harder than it was. anyway, i should be all set now.