Jet needle adjustment

grippper

New member
Joined
May 30, 2003
Messages
137
Age
54
Location
Lake Elmo MN.
ever since i had my carbs cleaned i got this annoying midrange burble. gets worse as it gets colder out. my current carb jetting is.
pto 150
center 150
mag 153.8
i disconnected the tors and it ran better for a while untill the temp startred to drop a bit. i did not do the rejetting. do you usaly adjust the jet needle adjustment when you rejet. i think maybe the machanic put them at the wrong setting. could i switch them or could i cause a meltdown if im wrong. the sled never had a burble before and its just embarrising when i take off in front of a bunch of cats or polaris or doos. and its making me loose alot of ponies. it aint even worth riding if i have to ride like this.
 

clarify this burble, does it happen when you snap open the throttle at take off? or at half throttle?

Adjustments vary depending on throttle stage: mains are for full throttle, needles for 1/4 to 3/4 throttle, pilots/fuel screw/air jet for blast off.
 
when i nail it its like it clears out. and because i have to nail it to get it out. my gas miledge went down the tubes.
 


Back
Top