overrev ?

mulderdad

mulderdad

New member
Joined
Jan 3, 2004
Messages
668
Age
53
Location
Beautiful British Columbia
Hey all.
I went out last week on a hardpacked feild with my old 8dn belt.
Belt had about 2000k on it. Rpm was at 8300 spot on.
Went out for a rip two days ago and was overreving at 8600-8700. The only thing I did was put a brand new 8dn belt on before I went. We had about ten inches of fluffy snow. Was it the snow or the belt or both? I was over at my buds tonight and he said it is my hauck stingers causing the overrev due to lack of back pressure?
Thanks,

mul
 
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a new belt will raise rpms. Check your center to center and alignment. May have to add weight to the tips. Also check all bushings and rollers and weights and pins. A worn anything can cause binding and make clutches act goofy.
 
yamaholic?? i always thought the new belt would lower the RPMS clutch has more material to work with causing the rpms to drop a little bit and an old belt will raise your engagment but lower your top-end just confused on that could you please explain how that works for me? Thanks, Tom
 
I have allways found a new belt will lower rpm,s. High Barometric pressure will raise rpm,s. A sunny clear crisp day can rreally make the sled sing.
 
sorry boys i should've clairified more. I have actually found it to go both ways, i worded it kinda chitty. I did not mean that it is a rule of thumb that a new belt will raise rpms, but i have found it to happen on several occasions. I'm not sure if this would be attributed to the compound being harder before it has gone through many heat cycles, creating a little more belt slippage before it is broken in, or if there is that much tolerance in the length, not sure. But i have found this to be the case before. Also, its important to wash a new belt with hot soapy water before using, there is a lot of dust and debris left on them from manufacturing and from sitting on the dealer shelf for a year. Wash them up good to keep good contact between belt and sheaves. ;)!
 
My alignment and belt deflection are good.
I don't have the tool to check center to center.
Is there any way of using a soft measuring tape around both shafts?
I will take her out for another rip tomorrow and post the results.
Turk it was a sunny crisp clear day.
thanks,

mul
 
Yes i use just regular dishsoap to clean my belts and clutches, with water so hot you can barely touch it. And about washing it now, i'll just say this: you're clutches and belts can NEVER be TOO clean ;)!
 
I went out today and have a bout 120k on my new belt.
Lots of road running and some hardpacked trails.
Still seeing 8500-8600rpm.
Does anyone know if it could be the hauck stingers causing the rpm to go up?
 
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