ryskie22 Posted March 22, 2009 Report Posted March 22, 2009 i rode the bike today and im thinking it is lean but want some other opions on this, what i have is 421 cheetta cub on gas kicking compression is 190 and cpi pipes, boysen reeds,2-35mm pwks with a 52 pilot and 160 main and stock needle what ever they come with and it is in the middle clip. the elevation is sea leval to 500 feet. what do you guys think? Quote
brian Posted March 22, 2009 Report Posted March 22, 2009 What is the temp where you are. I would think that 160 main is a tad lean for that setup at around 60 deg. I'm running 160s in my 4mil with comparable compression on a ported stock cylinder 380cc. Mine is a lil rich at about 1100 feet and 60deg. The pilot is probably pretty close. If it is too lean the idle speed will be inconsistant (idle speed will rev up and down and will be very hard to control). Quote
ryskie22 Posted March 22, 2009 Author Report Posted March 22, 2009 What is the temp where you are. I would think that 160 main is a tad lean for that setup at around 60 deg. I'm running 160s in my 4mil with comparable compression on a ported stock cylinder 380cc. Mine is a lil rich at about 1100 feet and 60deg. The pilot is probably pretty close. If it is too lean the idle speed will be inconsistant (idle speed will rev up and down and will be very hard to control). the temp today was only 55 degrees f but mostly just ride at the beach in the summer were it is like 70+ Quote
brian Posted March 22, 2009 Report Posted March 22, 2009 I would go up one or two sizes on the main and do a plug chop. Quote
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