What size weights to use on 09 M1000??

[MUZBOMB]

Hey guys my buddy has a 09 M1000 sno pro he just bought. It has a can on it and everything else is stock we ride at 2500ft. I am wondering what size of weight to run in the primary and if anyone knows what they come with for stock weights? Thanks again guys

 

[prairieguy]

i do believe it will come stock with 83 or 80 gram weights you will need to run 85 gram weights with the yellow white spring and it would also help to run the 40-46 deg helix they call for i know right now i have the 85 gram weights and yellow spring with 36 deg helix and i seem to be slipping when my clutches are at full shift out. once i get back form the mountians this weekend i'm going to try the lower altitued helix that they call for.