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Title: jetting problems!! Post by: CrazyCat420 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?????
any one have any Ideas?? thanks Crazy cat Title: Re: jetting problems!! Post by: IT200 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.
Title: Re: jetting problems!! Post by: CrazyCat420 on June 19, 2005, 03:54:10 PM the stock carb on these quads do not have an adjustable needle on them.
Title: Re: jetting problems!! Post by: J.D. 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 .
Title: Re: jetting problems!! Post by: Chuck_Norris on June 22, 2005, 12:40:45 AM touch base with bigworm3699 He just did some jet work on his DVX. sounds rich though
Title: Re: jetting problems!! Post by: reloader50bmg 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!! Title: Re: jetting problems!! Post by: BIGWORM3699 ( ECP RACING) on July 05, 2005, 03:45:39 PM the needle is adjustable. I raised mine 2 notches
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