quick jetting question on a OKO 30mm...

800screws

New Member
Oct 5, 2009
13
0
0
carb right now is running a 1 turn out air screw, 50 pilot, 1 clip down from the middle, and a 150(i think) main...the bike has a uni filter, duncan pipe/silencer, vitos reeds. it seems to be running fine, way stronger than with the stock carb, but the throttle seems to hang when u let off the throttle and doesn't return to a normal idle till a few seconds....should i go up on the pilot and go down one more clip on the needle? i figured it's a lean low circuit setting causes this. just wanted a second or third opinion.
 
sounds like a lean pilot. turn the air screw a little more to see if that helps, and make sure that the carb is free of obstruction
 
Are you sayin the thumb throttle isn't returning to normal rest position like the spring tension isn't there or do you mean the motor is running to high rpm longer than it should?

Caus eim reading two ways maybe?
 
pillot 1.5 turns out from full in.

keep turning in till you get a crisp throttle response

if it runs good at .5 turn out or less go up on the pilot
 
mods are listed up top, 0-500ft elevation...starts one kick and doesnt do it at idle...so i didnt think it was an air leak...only after getting off the throttle.
 
Does it always start one kick?

My quad would start first kick all the time when my jetting was OFF (way rich), but once I got it closer, Id have to choke it and kick it a few times before it would start up.
 
Didn't want to start a new post. Any insight on this thread? I have about the same setup and am having the same problem, hanging throttle when you rev, takes a couple seconds to go back to idle.
30mm oko
CFM box w/Uni filter
DMC complete exhaust
50 pilot
155 Main
N80 needle on middle clip
New top end all Weisco
1900 ft above sea level
Mid 80's temp
 
Didn't want to start a new post. Any insight on this thread? I have about the same setup and am having the same problem, hanging throttle when you rev, takes a couple seconds to go back to idle.
30mm oko
CFM box w/Uni filter
DMC complete exhaust
50 pilot
155 Main
N80 needle on middle clip
New top end all Weisco
1900 ft above sea level
Mid 80's temp

threads almost 6 YEARS OLD, I think everyone would prefer you start your own thread....
 
Didn't want to start a new post. Any insight on this thread? I have about the same setup and am having the same problem, hanging throttle when you rev, takes a couple seconds to go back to idle.
30mm oko
CFM box w/Uni filter
DMC complete exhaust
50 pilot
155 Main
N80 needle on middle clip
New top end all Weisco
1900 ft above sea level
Mid 80's temp
Sounds to me like your air/fuel mixture is running a bit lean. How many turns is your air fuel screw out? I would play around with that first.