clutching and gearing

[large52]

Trying to figure out why the majority of the rmk 900 riders are lowering their gearing. I thought the name of the game in mountain riding was track speed. I recently tried 18/39 but in the powder I kept getting stuck. Just went back to factory 19/39 and seems a little better. Thinking about going higher to increase track speed more. I ride with a M7 that does way better in the deep stuff than I do and when we race I kill him for the first 100 ft but then he gradually creeps up on me and passes me. I really dont know anything about clutching which could be another problem. On the stand @ the house 7,000 ft elevation the sled will hit 8,000 rpm's and like 90 mph(probably just from no friction) but I typically ride @ 10-12,000 ft and up there it will hit like 7,700 rpm and only about 58 mph. It seems like the power is just on and off it does not build whatsoever. This is probably just the 900 torque, but because of that torque I would think it would have the power to hit that higher top speed up high. It's a 159" ported track, rkt head, cpi full exhaust, runs perfect. The only thing I know about the clutching is that it has a green/pink (160/340) spring in the primary. I don't know about the secondary. Sorry I'm not much help with the clutching. The sled definately trenches and have played with the suspension alot thinking that was the only culprit of getting stuck so much, but wouldn't more track speed also help trenching. I don't know but all you here Chris Burandt and Brett Rasmussen talk about is track speed. Any help would be appreciated

 

[guidoxpress]

dump the stock helix, get a better helix, new secondary spring and i bet you will start having better luck

 

[Z-Man]

Everyone lowers the gearing to get lower belt temperatures and it will actually make the engine work less so it can turn the track fast going up hill. Even though the sled might go 80 mph on the flat the track speed climbing is probably only 40-45. If you lower the gearing it will have less top end but the engine will be able to spin the track faster when climbing.

Your secondary helix is probably the wrong one and if you have done nothing with the springs you probably need a new one in your primary and secondary.

 

[large52]

So what helix should I get and where is the best place to get one?
I weigh 230lb with gear.
Ride @ 9-12,000 ft
159" track
Slp intake, CPI full exhaust, rkt heads
Thanks

 

[guidoxpress]

i got a helix for you, sending you a PM