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What i did on m'y dragon fly Clutch kit il took the softer spring and put IT e bit softer and the weight are 63 gr each i can Tell you on the curve trail the sled have an instant response and i feel the second speed when the shoulder Reach the resistance point i am 2 sled on front a 2020 chip...

Me did IT ! On m'y 144 xtx port the head and .015 off Clutch work weak spring with dragonfly 64gr ramps result 14.9 liter /100 170 HP and est way more zip IT fantastic i race Chip skidoo turbo i 3 sled on IT and save about 4.6 liter on race mode and 2.2 liter grandpa mod

Allo guys what is your modification did you Do to improve your apex Power gaz millage and handling

nice engine quiet no fun! good horse p the machine look good handel like if you are on a top of the ladder, you have to work a lot to get same handeling speed of an apex! yes the apex it is not perfect but with the olins, snow tracker a the right ajustment it is a good set up . i can't...

try this BPB spring no weight on the D&F engine will respond faster a weight lost of 115gr on rotation mass from the original set up top speed 105 on soft snow -13 tempeture

i am trying the spring BPB 211 lbs/in with no weight on the d&f i get a ratio 1.17 for a total weight spring and d&f of 319gr vs yamaha apex ltx have 434gr total and a ratio 1.04 my set up go to 10500 rpm have read you you put strong spring to get performance you have to put a lot of weight if...

i have a Apex 2008 ltx gt 136 track an the max rev it's 9800rpm my sled it's i took 2 gr off of the weight and change the spring for a w-s-w if you can help me what going on ? happy new years and becarfull when ridding already 2 deads in Quebec