View Full Version : New 406 ready on saturday need help!!!!!
atvracr350
06-17-2004, 10:22 PM
I am getting my 400ex back from the shop where she was bored to a 406 with an 11:1 piston, and a hot cam stage 2 put in. What kind of jetting do i need to change to or am i ok with what i have (see signature). Also what kind of break in am i looking at and how long should i break it in? Thanks for the help.
cals400ex
06-18-2004, 02:42 AM
i would probably run the the needle clip position in the 4th position from the top and a 160 keihin mainjet or so. everyone has their own break in techniques. i say run it at fairly high rpms and then full decelerate letting the backpressure slow you down. i will then change the oil after about 30 minutes of riding.
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