motocrossrider68 Posted May 15, 2008 Report Posted May 15, 2008 hey i got a dune ported bike, milled head, stock carbs and reeds... i had t5''s on there and now i have cpi's. should i rejet it at all?? there is black oil that drips out of the exhaust now and its never done that with my t5s... Quote
slc_hillshooter Posted May 15, 2008 Report Posted May 15, 2008 I have switched from T5's to CPI's on two different bikes. You should be able to run a size or 2 size bigger on the main jet. However you need to lean the bottom and mids out with the needles. Drop those baby's all the way down and let us know how it works! Whats your oil mixture? Quote
Bansh-eman Posted May 15, 2008 Report Posted May 15, 2008 you may have to change one or two sizes . just keep in mind plug chops are your friend. Quote
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