TONYKX

Member
Aug 27, 2000
23
0
Hi Everybody
My Wr 400f seem to have couple off problem that I do not think this is came from factory.(I bough the used one from Local
dealer,no history)
1) After engine warm up properly when I snap thorotle it will kill the
engine (mid summer in Texas) I think this is too rich.
2) A lot of time in the trail have some series off kicking bump the
engine bogging down fall on it face (while I was steaddy throtle) .I have to let off the throtle a little ,shift down or fan the cluch to reproduce the power.
Did any body have this problem ?
p.s Took carbulator apart,it clean but and accel.pump pump very good also.
 

Brian Grau

Uhhh...
Jun 26, 2001
8
0
when you say if you crack the throttle it will die. mine did this when it was lean and had too lo of an idle. what color is your plug after running at wot?
 

Tree Crippler

Member
Jun 8, 2000
136
0
What is your jetting, altitude and mods?
This is what I have.
PJ48
MJ178
DVP#5
1 1/2 on the fuel screw
0-1500ft.
open airbox,unifilter,no baffle
 

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