I have some problems to get the last tutch out from the clutces.
The snowmobile is a Nytro XTX and i have 1,75 luggs and downgeered 2 teeth on the topp spocket.
I have now 60Y weight whit 9gram in the heel, 6 gram in the middle and 3 gram on the tip.
O-P-O primary spring and Ulmer H-helix and white secundary spring wrapped to 90 degres.
the problem i have is in 2 feet snow the engine revs upp to 8600-8700 before it dropps down to 8000, and then starts to climb upp agein. On hard packed trail the engine rev 8900-9000 and when you hold it out on a lake the engine climbs upp to 9200-9300 rpm.
What i want is that the engine would rev about 8800-8900 on hard trail, and in 2-3 feet snow the rpm would drop down to max 8500-8600 rpm. And in take off in deep snow i would like if the engine rpm didin´t drop down so mutch.
Could it be some belt slippering problems or something, maby to aggresiv uppshift on the helix.
I have tryed the yellow and the red/white AC springs, but the same resultate, and hotter secundary.
One other thing i have thinkt about is that the AC spring are longer than the orginal white spring, coult this affect the secundary on one or two things??????
Mayby try a Ultimax that i have read about should be a little softer and better gripp in
The snowmobile is a Nytro XTX and i have 1,75 luggs and downgeered 2 teeth on the topp spocket.
I have now 60Y weight whit 9gram in the heel, 6 gram in the middle and 3 gram on the tip.
O-P-O primary spring and Ulmer H-helix and white secundary spring wrapped to 90 degres.
the problem i have is in 2 feet snow the engine revs upp to 8600-8700 before it dropps down to 8000, and then starts to climb upp agein. On hard packed trail the engine rev 8900-9000 and when you hold it out on a lake the engine climbs upp to 9200-9300 rpm.
What i want is that the engine would rev about 8800-8900 on hard trail, and in 2-3 feet snow the rpm would drop down to max 8500-8600 rpm. And in take off in deep snow i would like if the engine rpm didin´t drop down so mutch.
Could it be some belt slippering problems or something, maby to aggresiv uppshift on the helix.
I have tryed the yellow and the red/white AC springs, but the same resultate, and hotter secundary.
One other thing i have thinkt about is that the AC spring are longer than the orginal white spring, coult this affect the secundary on one or two things??????
Mayby try a Ultimax that i have read about should be a little softer and better gripp in
I have push turbo kit...the only thing I have is ramp with a 45 degre helix....1 3/4 backcountry with the stock gearing. In powder rpm is a little bit low 8400-8500 but on hard pack 8800-8900.
