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Secondary Backshift - Belt Slip

Indy_500

Well-known member
Lifetime Membership
Just curious how many guys have experienced this, I've got 700 miles on my 15 RMK 800 LE, mostly in the U.P. of Michigan. 99% of my riding is sidehilling through the trees on and off the throttle all day long. 4 times this weekend I let off and hammered on the throttle again a split second later and the belt slipped. I opened the panel once and the belt was stuck down in the secondary. I attribute it to an overly tight track, 7/16" gap 16" from rear axle with no weight on it. I ran it at 1/2" the ride before and it ratcheted once so I went another 1/16". It looks and feels banjo tight but otherwise it will ratchet. Belt deflection still looks good, but maybe its time to replace? Loosen the track up a fuzz? Delrin washers for the secondary?
 
Do you have footwell covers?

I had issues kicking small amounts of snow through the holes.

Check belt deflection?
Should be as tight as possible without squeel.
Measure belt width compared to new?
 
It's not the deflection or lack of derlin washer. Something is binding, of the springs are junk, or your rollers are seized in the primary
 
Spec for the track is 10 lbs and 3/8-1/2" deflection. If you are 7/16 with no weight, it might still be too loose. Tight as a drum is how they work.

Check springs, the primary spring on my '13 broke into three pieces at about 500 miles, it still rode out, noticed it when I got home and opened the side panel.

Check driveline bearings, if a jackshaft bearing or the shaft go south, it will affect the clutch distances under load.

I have the footwell vents this year. Finally going to get to try them in our fresh snow! Seems like a no brainer though, keeping snow off the belt and clutches.

Check the belt as mentioned, clean clutches and belt.

Good Luck!
 
I have had the belt suck a few times on my '12, stock clutching. No clutch or driveline issues...

I keep meaning to run the black/purple and see how it does, but never bother. Almost every time it's happened has been while getting back into the throttle, while going down hill. Light load, to heavy load situations, where a rapid back shift is ideal.

I attribute it to my weight (250-260 geared up), and being a tad light on secondary spring.

I do, have my primary machined for clearance and balanced, and have one delrin in the secondary.
And I do have footwell plates.
 
Primary spring and rollers were good, belt measured ~.03" skinnier than my 048 Cat belt. Could use a minor belt deflection adjustment.
 
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