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rid3r3d33
08-03-2008, 05:57 PM
What will happen to my 400ex if i put on a slip-on (HMF, FMF, Motosport SR4) and not jet it? I want to jet it, but my dad bought the 400 for me and since he said i can't, i can't. Thanks for the help.

Honda#4
08-03-2008, 06:44 PM
If you dont plan on jetting it dont buy the pipe.

08-03-2008, 07:15 PM
you will be running lean...lots of bad things will happen when running lean

coryatver
08-03-2008, 07:26 PM
Originally posted by speedyquad
you will be running lean...lots of bad things will happen when running lean

I would just put a new jet in when he isn't home you can't tell what jet is in it without tearing it down:chinese:

rid3r3d33
08-03-2008, 08:30 PM
Sorry im not very knowledgeable about the jetting part. What does it mean to run lean? What are the bad things that will happen?