02 xp shuts if throttle too quick from start

[k_24]

I have a 2002 xp new mikuni reblt cards and sometimes wen i press throttle too quick it shuts off

I checked the accelerator pump and it works fine

Can someone help me please with this problem

 

[Triorieel]

As a data point:
I have the same issue, the consensus so far: cheap aftermarket carb kit. I will be rebuilding my carbs again to fix with proper oem parts.

 

[dieselndoo]

LS setting among with idle screw, not jiving....set ls to 1-3/4, idle at 3k. How'd you verify that excell pump is "working"

 

[k_24]

LS setting among with idle screw, not jiving....set ls to 1-3/4, idle at 3k. How'd you verify that excell pump is "working"

It squirts when i lress the throttle

 

[Matt Braley]

Open your low speed needles 1/4 to 1/2 turn and raise the idle slightly.

 

[k_24]

Open your low speed needles 1/4 to 1/2 turn and raise the idle slightly.

Aite il try that