I had put in a dynojet jet kit along with a K&N high flow air filter and pro design base plate, running stock exhaust and airbox lid, I have a stumble when I jab the gas most noticibale in 1st gear, after the slight stumble it runs strong to redline, if I gradualy feed it thottle its ok, the float level is good, I tried diffrent needle positions, and played with mixture screws some, since its right off idle speed it stumbles, but nothing seems to fix it, needle is on groove 4 on 3 it's doing the same thing but has less overall power and on groove 5 it runs bad thougout. any more suggestions appritated

 

You need to adjust your A/F screws out! Go 1/4 turns at a time. You should be able to free rap perfectly with no stumble or back fire.


Pat

 

it does seem to free rev good, neutral or clutch in, what I meant by speeds just off idle was as slow as you can go in 1st without it stalling or jerking, just kinda idleing along, then when I mash the gas theres a slight stumble before its gets going strong, sorry for the wording, thanks for responding

 

lean out the pilot jet

 

stock pilot is in it now, any suggestions as to what number to start at, thanks

 

umm like 180

 

lol thats hilarious
the stock pilot is 22.5 you just need the next step down.

 

Do what pat said sounds a hair lean on the idle mix but carbs with vacuum slides and no accel. pump are prone to have a little hessitation.