Drive Belt

R

red700rider

New member
Joined
Feb 4, 2004
Messages
6
Location
Western Canada
I bought a new belt for my '97 SX700. The old belt was worn to 33 mm and the belt is running below the sheave. The new belt I bought (Yamaha 8DN-17641-00) is only 33.5 mm not 35 like the specs call for. I have one set of spacers (I think the smaller ones). Should I look for a different belt? Will adding a thicker spacer bring this belt above the sheave or is there something I else I should do?
 
I need that!

I've got the same rig, and I'm gonna need a belt, should I get the 8DN or the 8CH? If I should have the DN I would very much like that new clutching set up!
 
Mr sled!
thanks for all the info! i got ahold of Larry today at North Country, very helpful guy--and yes I would like the whole clutch set up, primary and secondary, as i ordered an 8DN from Larry today--he's got good prices! thanks again!
 
I will get you a good kit and then what to do to change the stock setup....actually Larry can sell you that too...he has the same one I would tell you and he can get the parts as well. Let me know if you still want the set ups??? or if you want to hit up Larry.
 
I would very much appreciate the clutch setting. One question I have about clutch setting is does driver size have anything to do with how I set my clutch? All dressed up for riding I am 240 lbs. Also I am running with a stock 3/4" track but will be upgrading to a 1 1/4" track.
 
Stock Clutching w/ 8dn belt change rollers to 14.5mm, rivets both holes 3.6g, if it overrevs then load the tip a tad heavier.

Perf clutching w/8dn belt, 8ab weights, 2.4g in both holes, 14.5 mm rollers, Y-S-Y sec spring, 1 engagement shim, 48/43 helix, green sec spring at 70. 1 piece head gasket, bore silencer, notch reed stoppers and jetting at 145 on #1 and 143.8 #2 & 3......then check the overrev...should be really close.
 
I got the new bearing today; what I thought was a good deal, turns out I still need the inner race as it is sold seperatly! Ha Ha! thats Murphy for ya! i think I will get the performance clutching set up and parts from Larry, seems like I'll need some new mains too huh? Maybe I'll be ready for watercross! (have to hurry though!)
 
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