atv acceleration problems

[rgorm2500]

i just put my HMF sport series full system on and followed the directions with my dynojet kit, its on the 3rd groove on the needle with a 160 main jet just like it says for a high flow after market exhaust ( is this exaust a high flow exhaust). Do i need to drop the main down to a 155. all it does is stumbles a little of idle, if i play with the gas a little it comes to life real qiuck, i just dont know what else to do about it, the Nology Hotwire, plug and coil help out a lot.

[cataway]

did you put in a #25 pilot and adjust the fuel screw ?

[gojk]

Originally posted by rgorm2500
i just put my HMF sport series full system on and followed the directions with my dynojet kit, its on the 3rd groove on the needle with a 160 main jet just like it says for a high flow after market exhaust ( is this exaust a high flow exhaust). Do i need to drop the main down to a 155. all it does is stumbles a little of idle, if i play with the gas a little it comes to life real qiuck, i just dont know what else to do about it, the Nology Hotwire, plug and coil help out a lot.

When I folled the directions from DJ my quad stumbled pretty hard just off of idle. I dropped the needle one position and that cleaned it up perfectly.

[rgorm2500]

no i didn't where does the pilot jet come from, it wasn't in my kit

[rgorm2500]

gojk, do you mean up or down on the needle

[gojk]

Originally posted by rgorm2500
gojk, do you mean up or down on the needle

Move the clip up on the needle which drops it deeper leaning it out.