Help with clutching please!

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big10champ2003

New member
Hello, quick question for you all.

I am trying not to spend a lot of money on rebuilding a clutch for a cheap indy 500 I have that I bought several yrs back and now just let friends ride or use as a emergency backup.

So my question is: It needs the clutch rebuilt. Stock weights are 49.5gram 10M5 weights. Would it be better to put 51.5 gram weights in or 47.5 gram weights in? I dont want to spend the $55 bucks on new weights if the others will work and I can get them for $20. I know the lighter ones will make the rpms go up, and the heavier one will lower the top rpm.... so which is the better route??? Its going on a stock set-up 1990 indy 500 with a L/C motor. I has a 133 track. Motor runs very good has 63xx miles and 135lbs comp. in both cyl.

Any thoughts would be greatly appr.

Thanks
 
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salmonbum

New member
You need to change your spring to match weight. If its an old spring, its probably time for a new one anyway. I replace my springs every 1500 miles.
 
indy_500

indy_500

Well-known member
heavier weights make the clutch engage later. That is why when you buy a clutch kit, you get heavier weights. That way, you take off a lot faster. But like salmonbum said, if you put in heaver weights, your gonna need a stiffer spring.
 
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doomsman

New member
Try the lighter weights, with the older weaker spring you
may get lucky and hit your running rpm.
you got em try em.
 
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toddspolaris

Member
indy_500 said:
heavier weights make the clutch engage later. That is why when you buy a clutch kit, you get heavier weights. That way, you take off a lot faster. But like salmonbum said, if you put in heaver weights, your gonna need a stiffer spring.
Click to expand...

Indy, the heavier the weight the sooner you will engage, what they do is give you a stiffer spring to up the engagement.
 
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big10champ2003

New member
OK, so I am not the greatest at this clutch thing...all I am looking to do is get the clutch usable again. I got a spider kit.... now I need some weights. Stock says they should be 49.5g 10 M5 with a Silver spring. The clutch has a gold spring in it now not sure of the weights. I have a clymers manual and have been looking at all the different types of clutch set-ups.

I was hoping to find a decent clutch setup for normal riding for the average user, for cheap. With all the looking around I have done I might as well just buy stock and spend the money....only like another 10-15bucks anyways.

But does anybody know....Are the Polaris Gold & Silver springs the same....they are both rated 100/275?
 
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