Cold Weather Jetting
I guess I should post this here. I live in NE Wisc and it just snowed a ton and now my quad runs like SH*T!!!. I have a 42 pilot and a 160 main screw 2.5 turns out with the R4 system and no air box lid. The box filled with snow, It ran horrible. Then cleaned it out and put the lid back on and it still ran horrible. I think its the jetting but not sure. It would pop when you let off the throttle and it wouldnt idle. Please help. Oh ya its any wheres 0 to 32 degrees.
2001 Yellow 400ex
WB R4 full system
Uni air filter
No airbox lid
160 MJ 42 PJ
Tusk handle bars
Tusk Nerfs
MSR Gripper Levers
Black Maier Handguards
Titax 14 tooth front sprocket
Kenda Klaw Rear 20in.
All Balls axle bearings
Front 21" Razr PR on flipped stockers
WB rev box
Custom black plastic a-arm guards
Powder Coated things
ALL IN PIECES 4 WINTER REBUILD!!!