HMF slip on

936 Views 6 Replies 5 Participants Last post by elmerkit, Sep 1, 2010

Discussion Starter · Aug 14, 2010

Im probably going to get an HMF slip on for my 2004 400ex soon and would like to know if i have to rejet my quad when i put it on?[

1 - 3 of 7 Posts

yes, with air lid off use a 170 main jet. and if you haven't already, install a 42 pilot jet. your quad will start alot easier

if you want a red hmf slip on, I have one I took off my 400 just repacked it before I took it off

a slip-on goes on a stock head pipe, an aftermarket head pipe will be bigger than stock

1 - 3 of 7 Posts

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