30mm oko or Keihn experts

[bigborebanshee]

Im trying to set the jetting on a friends 01' banshee with 30mm oko's.I set the pilots at 52, the mains are 152 and the needle is in the stock position.fuel screw at approx 1-1.25 turns out

 

The quad runs great from 1/4 throttle to full.Pulls hard throughout the entire powerband,plug chop looks good..

The problem is its a bit boggy from 0-1/4 throttle coming straight off the clutch.

 

When i adjust the airscrew out the bog gets worse,when i adjust it in to where it gets better,the idle gets rough like its flooding and Im getting a dark spot on the spark plug porcelin ,like its too rich at idle.

 

Would a 55 pilot clear that up?Or should i start looking at needle adjustments?Like i said,it runs great other than being a little boggy coming off the clutch.

[hercalmighty]

What mods are done to the bike? What needle are you running?

[DallasGDub]

Do you have a sync tool? I know these carbs are real finicky.

[shanYE west]

I would try some bigger pilots like you said.

[bigborebanshee]

Its a 4mill with porting,20cc domes carbon fiber reeds on stock cages,k&n filter with k&n airbox lid and FMF gnarly pipes....Like I said,it runs great,pulls very hard but has that boggy WAH WAH when you first take off.Its just that initial 1/4 throttle when taking off from a dead stop.the needle is the original ones that CPW sent with the carbs.

 

i had this same setup on another banshee with the exception of Toomey pipes/different porting and never had this issue.

i just think 55 pilot is a little big considering it is still running a semi closed airbox?

[hercalmighty]

Im running a 4mil dune port with CPIs. I have 45 pilot, N68A needle middle clip, 155 mains. Im running an open airbox with a foam filter. If its running crappy 0-1/4 throttle its probably the pilot jet. Like said make sure that the carbs are perfectly synched. The 28PWKs and OKO 30s are real touchy.

[bigborebanshee]

Im running a 4mil dune port with CPIs. I have 45 pilot, N68A needle middle clip, 155 mains. Im running an open airbox with a foam filter. If its running crappy 0-1/4 throttle its probably the pilot jet. Like said make sure that the carbs are perfectly synched. The 28PWKs and OKO 30s are real touchy.

 

Now that i think about it,the old engine had boyesen rad valves too and this one has stock reed cages.The carb sync is dead on.I guess there is no magic jetting number to go by considering the variables.

 

I will try a 55 tonight,I appreciate all the input..Thanks!