Clutching question, 03 RX1

[MA03RX1ER]

I have an 03 RX1 ER stretched to 151". Stock engine, running anti-ratchets. I figure I'm going to have to change up the clutching and/or gearing to compensate and I could use your guidance on what to do.

Thanks!

 

[grader]

you have converted to the 03 mountain sled. the gearing should be about 22-23 top and 40-42 bottom. if it has reverse the bottom gears are pricey. as for clutching, run an orange-silver-orange primary spring from yamaha with the stock clutching, and fine tune from there. dont worry about the low gearing as the sleds not meant for top speed with the 151 track.

 

[Len Todd]

Also, ... for the Secondary you want a fresh White spring set to 70 degrees twist.