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Quick and easy adjustment is tighten the throttle cable freeplay, you should only have .010”-.030” measured between the lever and throttle block at the widest point, opposite the pivot pin. Should only be that gap when you take the slack out but before you feel the throttle blades start to open...

Yes just the 2 coated ones.

I use the ones in the Thunder Products kit. Purchase from Recreation Supply in Saskatoon.

Flush it and change the coolant.

Put 2 more delrin washers in, one in the spring cup, one in the spider where the rollers are. Put 2 slick washers in the primary clutch, one on each end of the spring. Go to 10-70 weights to pull the rpm to 8250 max.

Put a 140/220 secondary spring in with 3 delrin washers. Change the primary spring to a venom white, green if you run mostly trail and not much deep snow. Buy SLP magnum weights, the 40-151 if you think you may buy an 850 in the future, the 40-150 and 40-158 inserts if not. Set either one to 69...

What is your clutch, gear, track set up? What are you looking for? Better acceleration, or top speed?

Thanks racerdave. I see the traffic on Hardcoresledder isn't what it was, a lot of the technical posters are gone? Is this the new hangout?

I run pump gas 91 octane. Just adjust the fuel screw properly on the valve for the additional fuel. I can hold the button for a mile, until the DET starts to flash, then I let go of the button. Can keep the throttle pinned the entire time. When I let go of the NOS button the det light goes off...

I installed one years ago on my 2006 600 RMK. Still have it on. Works great. The hardest part was finding the proper 1/8 to 1/16 plastic reducer fitting for the fuel line to feed the fuel nozzles. Acklands Grainger in the US was the only place, and had to order 10 or 20 of them at once. I plug...