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Author Topic: jetting problems!!  (Read 3768 times)
CrazyCat420
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newby from GA, on a DVX 400


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« on: June 19, 2005, 11:37:40 AM »
I have a dvx400 I put a hmf header and pipe on and changed out my main jet quad was runing great I then put a new intake cam in and begain running lean we bumped up my piolet jet and now I am running rich some were after running quad for a while when I shut it off I get a big puff and some times small flame out of the pipe I know this can not be good!!  it seems to run fine when I hit the gas hard and stay on it and I do not get much back fireing when I let off but on the bottom end when I try to put along it I get a bit of hesitation and it seems like it wants to die on me?Huh? 

any one have any Ideas??
thanks Crazy cat
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IT200
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« Reply #1 on: June 19, 2005, 03:17:55 PM »
You went to big on your pilot jet. Flames out the exhaust mean to much fuel. go back to your original pilot jet and raise your needle a noch.
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CrazyCat420
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newby from GA, on a DVX 400


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« Reply #2 on: June 19, 2005, 03:54:10 PM »
the stock carb on these quads do not have an adjustable needle on them.
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J.D.
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« Reply #3 on: June 21, 2005, 03:43:39 PM »
Go to a z 400 website and look around...Or get a needle out of a DRZ 400 .
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Arctic Cat 500 man. Dyno Jet , Snoorky , 14's , Cup Holder , Pro-Com CDI , K&N filter , .......To Be Continued ! 2001 Suzuki RM 250 ,Fatty Pipe , FMF muff ...
Chuck_Norris
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« Reply #4 on: June 22, 2005, 12:40:45 AM »
touch base with bigworm3699 He just did some jet work on his DVX. sounds rich though
« Last Edit: June 28, 2005, 10:50:44 PM by Chuck_Norris » Logged
reloader50bmg
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GET OUT OF MY WAY, "KID" [SILVER POWER}


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« Reply #5 on: July 05, 2005, 01:58:34 PM »
GO back to your old pilot jet, shim the needle .020" to .030" you will be fine!!!
check float level too!!
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BIGWORM3699 ( ECP RACING)
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« Reply #6 on: July 05, 2005, 03:45:39 PM »
the needle is adjustable. I raised mine 2 notches
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