is 55 footlbs what you torque the primary clutch bolt to? thats what the dealer told me so i set it at that, started the sled, got it to engauge a few times then retorqued it....it lossened upabout 1/8 of a turn, so a retorque and wait till this morning and drove the sled to the back yard from the garage...again i checked it and again it lossened, this time about 1/4 turn. WTF i, afraid to ride it as the clutch might fly off. did the dealer tell me the wrong torque setting? it took alot more than 55lbs to break the bolt loose....

Correct torque on a 14 MM primary bolt is--50 ft. lbs. It is possible the clutches taper has been damaged and at least needs a clutch taper ream (#2870576) turned into it to resize the taper, also did you clean both the crank end and clutch taper so no dirt or grease is on the mating pieces? Some solvent and or scotch brite pads work well, careful not to damage the crankcase seal.

Don

It is common for the bolt to come loose. It is also reccomended by Polaris to re-torque the bolt. XCR is correct...the torque is be 50lbs. Clean the snout of the crank and do your best with the inside of the clutch. Perhaps a piece of Scotch Brite. No lube on the taper during installation. Just clean dry metal.

The reason for the high breakaway torque could have been corrosion or a thread locker.

When doing mine, I like to install and torque, then ride a mile or two easy. Come back and torque again. Yes, the bolt will be way looser. After that though, it should continue to stay tight.

yepp, i do mine as you, just keep the crank snout clean and the taper bore clean, i use steel wool and carefully clean both surfaces , then spray brakecleaner on it and dry with a cloth until every thing is superclean... :div20:

PP

How did the engagement RPM look with the new spring. I know you didn't get a chance to ride the sled but I was wondering what your feelings are with the new primary spring.

Everything above about clean and torque is right on the money.

it moved the engagement up to about 3800-3900rpms. not as high as i wanted...but i thinki it will work, if it dont then ill try an SLP spring.

Metal expands and contracts depending on the temperature. 50 lb-ft on a warm clutch and warm crank stub is not the same as cold. I had a primary bolt back out on me on the Continental Divide trail in Wyoming last year. Had to limp it the rest of the way to the lodge with no primary bolt. That was scary...

Lesson learned. Using removable Loc-tite from now on.

Removable lock-tite??? as in blue locktite?? I will be going to the mountains this year and don't want my clutch coming loose out there. After setting up my primary at home with moutnain weights and installing the clutch, what should I do?? Run the sled on the stand a little bit and retorque the bolt?? I don't want to bring a torque wrench with me out there, but if I need to I guess I will. I just put alot of money into my motor and clutch and can't afford a breakdown.

Run it on the stand for a bit, rev it up and down, then take it across the yard hard once. Then re-torque. You should be fine from there on out.