You say you are blowig the 080 apart.
What sled is this on?
How many miles?
When were the springs in the clutches last replaced?
Has the primary been removed, cleaned and inspected for smooth operation.
Have you verified that you do not have any broken motor mounts?
What gearing do you have in the chaincase?
If these things are "off" then you could be asking for crank problems.
A "bombproof" belt will only temp mask an underlying problem.
The 122, 115 and 809 will most likely require that the primary clutch be re shimmed.
Lets just say clutches are in perfect shape, along with everything else, as they are. I take better care of my sleds then myself, lol Any question of this talk to x2freeride.
I get about 600 miles on a 1080, lots of belt dust, and countinous riding at 70-80 mph generates a lot of heat quicklly.
This is with a team 98 secondary, if I put my old trusted button clutch on problems are solved, but then no more reverse.
2004 prox 800, slp perf package, team 48-34f helix, 140- 240 spring in sec. 140-310 primary spring, 70g dalton wieghts, 25-40 gearing, low elevation 500 to 2500 feet, Western NY. 911 clutch cover, , 90 durometer mounts, torque arm on engine block.
I plan on changing helixs around this year and trying something less agressive. Gear change is out of the question, I can do 250 miles in a day and need my mpg to keep up with the doos and yamahas I ride with.
Guess what I'm after is,, whats everyones takes on the belts listed, sled is in perfect condition as far as maintenance and up keep. Mater a fact, 7000 miles on the stock bottom end. I did rebuild it for the hell of it, was getting scared.
Thanks
Al