RM125 Keihin 38mm PWK carb jetting

C

cking

Member
Got a 125 with trans removed with jackshaft. Have a PWK Keihin 38mm carb for it. What needs to be done to modify carb for methanol? Is it as simple as modifying jets? If so what size jets are needed?
For a stock 125 other than trans removed, what is target max rpm?
What is ideal rpm for clutch engagement?
Any help is appreciated!
 
It is not a simple jet change. Passages all need to be routed out as well. I highly recommend going to an alky lectron or sticking with gas with current carb. Keep it under 13K, peak torque and power typically drops off after 12.5-8K. Clutch engagement at 8-9K.
 
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