now when you say your looking for the fuel screw you mean the air mixture screw??? its right in front of the carb on the out side...... and with that poping you will allways get a LITTTLE pop here and there but you could be running rich to....... rich eould be kinda poping........ and check your plug mine got kinked over and it was poping allot to so check that also,
2005 250ex
DG- A arm guards
Skid plate
Sparks X-4 full system exhaust!
K&N Jet Kit
K&N air filter and outer wears
SOLD!
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2003 400ex.
graydon nerfs
skid plate
A-arm guards
Pro Armor XC Bumper
Black HMF slip on
Dyno Jet Kit
K&N air filter
Outterwears pre charger