need help with new banshee

[Fast_quad_03]

I got a nice roller for christmas and put my 4 mil dune port in it, i got the jetting set about perfect but need some help.

 

Its about 25 degrees out, the carbs are 28pwks with k&n pro flow filter with opened up airbox.

 

It runs good while riding, but when sitting and i rev it up it takes way to long to idle down. And as it idles down it does it in 2 stages. It goes from a mild high rev for about 10 seconds to barely wanting to run at all.

 

I havent messed with the air screw at all yet hoping to get some more knowlegeable help.

 

Any ideas would be great. Thanks.

[Starwriter]

Leakdown test the motor.

[Fast_quad_03]

Leakdown test the motor.

Motor was just broke in, im in the process of doing a leakdown right now. 3hrs into it, its not losing any pressure.

[O/CbansheeRider]

Thought it was 6 psi for six min.

 

 

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[uman1030]

if leakdown passed wich it sounds like it did. , richen the airscrews, but most likely your way lean on pilots and need to bump them up 1-2 sizes. what pilots are in it?

[dave5.0]

What he said^^^^