rev idle problem

[muddbugge]

i just put a new main jet in my 87 blaster and it idles fine but when in rev it up it doesn't go back to idle it takes like 10 min. to go back. any help would be great.

some info on my blaster:
320 main jet
kn air filter
bored w/ bigger piston and alum. sleeve
d&d exhaust

 

[blasterfreek30]

theres a paragraph in here that describes ur exact problem and the fix
hope this helps

http://www.blasterforum.com/engine-13/great-carb-tuning-guide-9846/

 

[Awk08]

your runnin way too rich, that 320's way too big

 

[ckjohneh]

no, if your rpms hang, your runnin lean.

 

[2StrokeBlaster]

if it hangs in high idle for a little and then goes back down to normal you might be lean on your air mixture
so mess with your air/fuel screw i think to richen it up you turn it in