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View Full Version : what size jet for 400ex with 11:1 piston and WB eseries silencer


user101
12-06-2003, 10:55 AM
i need to know asap
thx in advance
hook
12-06-2003, 11:12 AM
155MN 42PILOT
cals400ex
12-06-2003, 12:02 PM
whats the temp?? elevation?? airbox lid or no lid??
Colby@C&DRacing
12-06-2003, 12:19 PM
Originally posted by cals400ex
whats the temp?? elevation?? airbox lid or no lid??

THis info is a must when asking these kind of questions without it you will only get a guess and that will not help.
user101
12-06-2003, 12:31 PM
its about 35 degrees, not sure on elevation im around memphis TN., and the airbox lid is on
Colby@C&DRacing
12-06-2003, 12:46 PM
elevation is the most important part. Call your local airport and find out:)
user101
12-06-2003, 02:39 PM
im 195 feet above sea level
cals400ex
12-06-2003, 05:58 PM
i am not saying everyone will agree with me, but i recommend a 155 or so. a 42 pilot should be about right. the fuel skrew may need to be at turns out or so. if it gets really cold, i move my clip on my needle to the 4th position. some people like to run bigger jets so their bikes run rich. this will make the bike run cooler but it will also produce less power. i like my bikes to be a little leaner so the power is a little more. if the headers aren't glowing, it shouldn't be too lean in my opinion.