Accel pop

[redrider2500]

I have a acceleration pop on my 05 450x after moving the clip on the needle up one, because i thought it was getting to much fuel, i think i was wrong, i think i just had a dirty carb, would the clip being one higher cause it to be too lean and make it pop on acceleration?

[FORMA MOTO]

No, not likely. It's more likely your ground wire under the tank is loose.....

[Nayther]

needle does not come into play until about 1/3 throttle.

[redrider2500]

thats where it happens, it doesnt start right away, it starts at probably about 1/3 throttle

[Nayther]

thats where it happens, it doesnt start right away, it starts at probably about 1/3 throttle

You describe it as an accel. "pop", what does it do at about 1/3 throttle when you hold it steady?

You could always put the needle back up (clip down) and see if it goes away.

[redrider2500]

I did move it back and it helped but its still poping some when i hold it steady at about 1/3 throtle. Should i move it down another clip?

[CRF DOC]

What is your current jetting configuration?

What mods have been done?

Let's start there.

[redrider2500]

I just followed the jd jetting instructions, 165 main, red needle with the clip in the middle,i also changed the pilot jet to a 52, which fixed a decel pop i had, i installed a different fuel screw, easer to get to, and the mods done are, smog block off, air box opened(top and sides) and backfire screen removed, R muffler, pink wire mod.

[FORMA MOTO]

Your pilot jet is too big.

45pilot

165main

Red needle 3rd or NCVS 4th

Leak jet 50

A 52 pilot jet will cause problems.

[redrider2500]

wait, i think its a 52 leak jet, not pilot jet, my bad.