yamaha11 Posted July 9, 2009 Report Posted July 9, 2009 have a 421 with 35mm pwks , cpi pipes, v force reeds . weres a good place to start with jetting. Quote
Lift Gate Gus Posted July 10, 2009 Report Posted July 10, 2009 I have the exact set up and am wanting the same information. I have not had a chance to run the CPI's yet but would like to know a good starting point as well. CPI small bores 421 cub V-F 3's 35 PWK Quote
yamaha11 Posted July 11, 2009 Author Report Posted July 11, 2009 someone has to have some info for us Quote
okbeast Posted July 11, 2009 Report Posted July 11, 2009 Well depending on elevation/riding temps. I have a 421 cub, same setup basically and I'm around a 155 main and 48 pilots but am gonna drop my main some because of a little bog. This is also in 100+ degree temps. And around 1000 ft. of elevation. Quote
yamaha11 Posted July 11, 2009 Author Report Posted July 11, 2009 Well depending on elevation/riding temps. I have a 421 cub, same setup basically and I'm around a 155 main and 48 pilots but am gonna drop my main some because of a little bog. This is also in 100+ degree temps. And around 1000 ft. of elevation. you running 35mm carbs Quote
okbeast Posted July 11, 2009 Report Posted July 11, 2009 Yes, sorry that's what I meant by same basic setup. Quote
yamaha11 Posted July 12, 2009 Author Report Posted July 12, 2009 how does your set up run, are you happy with it? Quote
okbeast Posted July 12, 2009 Report Posted July 12, 2009 Runs fine but the main jet needs some dialing in still I think, just don't have enough time right now. Quote
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