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carb help


jlennon79

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need more info homie what is it doing what are you doing how was it running before did you just build it any info that would help point someone in a direction here and we can figure it out no prob. but i would say your boost bottle is the problem  :blink:

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Put 27.5 pilots in there.  I can't see any bigger than that with using the stock air box, even with all those holes in it.

 

Here's how you adjust the air screws.

 

Warm the bike up (yes...I get that's tough to do as is now...but you have to adjust air screws with a warm motor).

Turn the air screws all the way in, lightly, then 1 full turn out on each.

 

Once it's at a steady idle (you may have to turn the idle up just a hair) turn each screw out 1/2 a turn and wait 30 to 40 seconds.

It takes that long for the adjustment to take place.

 

Keep turning the air screws out 1/2 turn at a time until you get the highest possible idle.

 

If you keep turning the air screws out..and nothing is happening, your pilot it too big. 
If you end up with less than .5 turns out, your pilot is too big.

If you go past 2.5 turns out, your pilot is too small.

 

Now, this is taking into effect that everything else is put together properly.  IN other words, the right carb bowl is on the correct carb, the slides are in the right carb, they're synced properly and the choke tube is in place.

 

Stock carbs flow the pilot circuit pretty well.  I'd be surprised if you needed to go past a 27.5 to be honest.

Please, give it 30 seconds to a minute for the air screw settings to take effect, it's not an instant change in rpm or tone.

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