F4i Help Needed

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Old 03-17-2010 | 12:33 PM
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F4i Help Needed

My bike is fallin on it's face anything over 7000rpm's
it runs GREAT anything below that
bike has around 8600 miles
the harness looks all good
any ideas?? or Help??
Old 03-17-2010 | 12:35 PM
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Re: F4i Help Needed

cutting out or just losing power?
Old 03-17-2010 | 12:36 PM
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Re: F4i Help Needed

Originally Posted by ryans900
cutting out or just losing power?
+1??
Old 03-17-2010 | 12:56 PM
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Re: F4i Help Needed

anything over 7000rpm's
it starts cutting out--when it does this it is also losing power
almost like its not getting enough fuel
it starts breaking up and almost sounds like its trying to back fire
Old 03-17-2010 | 01:24 PM
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Re: F4i Help Needed

if its back firing , i would guess it a ignition problem not fuel , check the condition of the plugs. if they are clean its lack of fuel , wet = misfire cam or crank sensor , loss of voltage from stator, could be comp or something simple like a clogged air filter loose throttle body boots , vacuum leaks .hard to say without checking it myself
Old 03-17-2010 | 01:28 PM
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Re: F4i Help Needed

Tighten your battery terminals.
Old 03-17-2010 | 01:50 PM
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Re: F4i Help Needed

Originally Posted by skillz
if its back firing , i would guess it a ignition problem not fuel , check the condition of the plugs. if they are clean its lack of fuel , wet = misfire cam or crank sensor , loss of voltage from stator, could be comp or something simple like a clogged air filter loose throttle body boots , vacuum leaks .hard to say without checking it myself
Thank you

air filter is Clean-throttle body boots are tight--batt is all good
i put the gauges back on today
and it doesnt show any lights or anything
im gonna get some New plugs tom
Old 03-18-2010 | 03:13 PM
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Re: F4i Help Needed

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i know the pic is kinda shitty
but i think the plugs look Hot-- not Wet at all
gonna have to wait until sunday to find out if the New $65 plugs helped
Old 03-18-2010 | 04:29 PM
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Re: F4i Help Needed

i think brown plugs are ok, i think its lean when they are more white looking...not sure tho..haha
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