400ex hmf pipe and jetting

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Mar 20, 2009 | 08:37 PM

#11

zfrank07

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400ex hmf pipe and jetting

I put a 155 khilien main jet and it seems to be running good...no problems...plug looks good...didnt adjust fuel screw or pilot

Mar 20, 2009 | 08:38 PM

#12

zfrank07

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Weekend Warrior

Joined: Nov 2007

Posts: 14

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400ex hmf pipe and jetting

i first put a 152 main and it hesitated and cut out a lil bit when getting hard on the throttle from a slow roll but with the 155 its a beast!

Mar 21, 2009 | 08:21 PM

#13

zfrank07

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Joined: Nov 2007

Posts: 14

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400ex hmf pipe and jetting

well today i was riding a lil around the house. it starts fine...but has a lil problem at idle....would adjusting fuel screw fix this or should i put in the 42 pilot jet

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