Sputter brefor powerband fixed with lid?

[ionroller]

I have 30 mm OKO carbs on my banshee, mods in sig.

 

I think my main is 168 now.

 

I had a hesitation before the power band, I put the lid on to rule out being lean, and it runs better now.

 

 

 

how many sizes up should I go to be safe with the air lid off?

[Wildcardracing]

I'd go up at least two sizes and continue tuning. But a stumble before the powerband is likely a midrange jetting issue, I'd also recommend raising your needle one clip position.

[ionroller]

so lean the needle also.

 

I plan to get JJH needles, should I still go middle clip?

[Wildcardracing]

No, you want to raise/richen your needle. Post up your complete setup and current jetting, we will be better able to help you out with it.

 

-Brandon

[ionroller]

Stock Stroke

HJR Dune port

+4 Timing

Chariot Reed cage

Boysen power reeds

Foam Uni filter

Open Air box

Mull Head 150 Psi

32:1 Ams oil interceotor

 

30mm OKO carbs

165 Main

50 pilot

[ionroller]

Stock Stroke

HJR Dune port

+4 Timing

Chariot Reed cage

Boysen power reeds

Foam Uni filter

Open Air box

Mull Head 150 Psi

32:1 Ams oil interceotor

 

30mm OKO carbs

165 Main

50 pilot

[sleeper06]

165 is a big jet for those carbs,i suggest you do a plug chop and dial in your main first,then move to the needle which is where i think your problem is

[ionroller]

i looked at my plugs after i rode pretty balls out to a friend house, about 2 miles. I pulled in and looked at my plugs and they looked lean. It was running like shit too.

 

Put my air bow lid on and it runs better? I figured I would be at like 155?

[ionroller]

lowered my needle 1 clip and it runs great now..

 

I double checked and my mains are a 165.