Poppin on decel

[Goob]

I have a 09400x with full hmf sport series 42 pilot and 158 main and I have adjusted the fuel screw everything seems right has lots of power doesn't bog or anything but when I let off the gas it pops a little not a lot just a little I was wondering what it could b and if it's ok or if I need to make another adjustment

[honda400ex2003]

if it runs good and it looks good plug wise then it is fine. there is always going to be a little popping when it is running good. steve

[quadmanw]

yeah check your plug. its always gonna pop a little. if your plugs fine then your good to go.

[rob_990]

sounds like its running lean

[Honda4life05]

maybe an exhaust leak? check the header, and where the pipes meet.

[mcgrath]

does it idle good? You could try a 1/4 turn on the air fuel screw but if it idles and runs good Id leave it alone. but if your off the throttle and it stalls out its lean.

[Goob]

I had a slight exhaust leak when I checked where the pipes meet and fixed it but it does occasionally stall so I'm goin to go from a 155 to a 160 and see if it helps

[honda400ex2003]

also try to turn the f/a out a 1/4 while you are changing the main then too. so go to 2.75 and you should be set. i guess you can do it after you do it too but it will have little to no effect on the main. steve

[honda400ex2003]

my bad 2.5 out not 2.75 steve lol

[Goob]

Lol k