srap Posted September 3, 2012 Report Share Posted September 3, 2012 1982 Montesa Cota 349 Mk4 fitted with a Mikuni VM round slide carb. Has anyone got such a bike fitted with this carb. as I amm looking to find out what jets, jet needle, throttle valve settings work best as I am having a few problems getting the bike to run well. The bike starts first or second kick from cold and after a little while will idle nicely. up to 1/4 throttle seems good but after that I am having some problems. The carb. has been fitted with a 5F3 needle but most of the stuff on the internet seems to suggest that a 5F21 is the standard needle for this carb. Any help or advice much appreciated. Quote Link to comment Share on other sites More sharing options...
nh014 Posted September 3, 2012 Report Share Posted September 3, 2012 If it can be of any help, here is what I have in the Mikuni VM26 on my Cota 348. Needle - 5F21 Slide - 2.5 Main jet - 130 Needle jet - 182 N8 Pilot jet - 35 Air jet 0.5 1 Quote Link to comment Share on other sites More sharing options...
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