TJ500
Member
Just removed and split the secondary clutch on my 500 VMax (99) for the first time....Manual says stock twist angle for the secondary spring should be 40 degrees or (1-3).... When I split the clutch. the twist angle was 90 degress or (3-6)....
Can anyone tell me what the numbers really mean and can any combination of fixed sheave hole (1,2,3) and helix hole (0,3,6,9) be used to create any twist angle from 10 to 120 degrees?....
I'm not sure what twist angle does and why my own was set at 90.... Is this an adjustment that is done often and quickly before setting out for different riding conditions?.... Any help is appreciated....
Can anyone tell me what the numbers really mean and can any combination of fixed sheave hole (1,2,3) and helix hole (0,3,6,9) be used to create any twist angle from 10 to 120 degrees?....
I'm not sure what twist angle does and why my own was set at 90.... Is this an adjustment that is done often and quickly before setting out for different riding conditions?.... Any help is appreciated....
Yes the numbers are added together and then multiplied by ten to determine the degrees of twist. The more twist, the more resistance to upshifting, and the faster it will backshift. It is a setting that can be changed fairly easy in the field based upon conditions, but any change beyond minor adjustments (10 - 20 %) can throw the whole setup off.
TJ500
Member
Thanks Ding..... 76 fellows read the post but only you replyed.... I suppose my questions are too trivial..... I'm just trying to learn too...
Why might the sled have a twist angle from the dealer of 90 degrees when the stock set up is supposed to be 40 degrees....
I must say, I like the way the sled was performing till now..... It was great on the tight twisting trails that I am most often driving on.... Lake runs and drag racing is not my style....
My mileage was poor however, around 7mpg, could the large twist angle be responsible for this too...
What could I expect for mileage and performance should I return it to factory? (1,3) or 40 degrees...
Any help would be appreciated...
TJ
Why might the sled have a twist angle from the dealer of 90 degrees when the stock set up is supposed to be 40 degrees....
I must say, I like the way the sled was performing till now..... It was great on the tight twisting trails that I am most often driving on.... Lake runs and drag racing is not my style....
My mileage was poor however, around 7mpg, could the large twist angle be responsible for this too...
What could I expect for mileage and performance should I return it to factory? (1,3) or 40 degrees...
Any help would be appreciated...
TJ
vmaxjohn
New member
Not trivial! Important! others' can learn from posts like this too.
Put the twist right back to 90*. With stock weights (stock profiles suck except for top speed) you'll need the extra twist to backshift.
I increased my MPG with more twist, because I spent way too much time giving it the gas and waiting for the rpm to come up. I'd be going up a hill at WFO but it'd take forever to get the rpms up! Added twist helped a bunch!
I assume you're talking 7 canadian miles per canadian gallons, eh? Our 500's got 10-11mpg stock (US figures), which improved a ton when I put a Tempaflow on mine. I jetted my wife's down a step, and it improved also.
I got 14mpg on a WFO trail ride, which was the same as my buddies ZR600EFI!
Put the twist right back to 90*. With stock weights (stock profiles suck except for top speed) you'll need the extra twist to backshift.
I increased my MPG with more twist, because I spent way too much time giving it the gas and waiting for the rpm to come up. I'd be going up a hill at WFO but it'd take forever to get the rpms up! Added twist helped a bunch!
I assume you're talking 7 canadian miles per canadian gallons, eh? Our 500's got 10-11mpg stock (US figures), which improved a ton when I put a Tempaflow on mine. I jetted my wife's down a step, and it improved also.
I got 14mpg on a WFO trail ride, which was the same as my buddies ZR600EFI!