What carb size?

[Michael Powell]

Hey guys I need help with finding a carb that would be perfect for my blaster.
-Here is my mods that I have on my motor.
-Vitos +3mm crank
-.20 cylinder bore
-Boost bottle
-Dg exhaust
-Removed air box lid

 

[best]

Hey guys I need help with finding a carb that would be perfect for my blaster.
-Here is my mods that I have on my motor.
-Vitos +3mm crank
-.20 cylinder bore
-Boost bottle
-Dg exhaust
-Removed air box lid

So far it looks good for the stock carb.
Get a head mod and some porting and maybe you could use more.

These Blasters just don't turn the rpm to need a 30-34mm carb, especially with stock head.
You can make 35hp (same as a Banshee) on the stock carb. Last of your worries.

Steve

 

[Michael Powell]

On my carb no matter how I jet it still runs lean. Me and my uncle came to the conclusion that the carb big enough. So we are looking for a carb that would be a good size we plan on working on some more.

 

[Awk08]

I'm on board too with the stock carb. none of your mods warrant a bigger carb.

has it been leakdown tested ?
might be an airleak preventing you from jetting it.


what jets are you running, and what makes you think it's running lean ?

carb spotless clean ?

float height correct ?
http://www.blasterforum.com/threads/float-heights-and-how-to-adjust-them.50565/

airscrew/pilot jet tuned ? the stock 32.5 pilot airscrew @ 1.5 turns out to start
http://www.blasterforum.com/threads/adjusting-your-airscrew-pilot-jet.51060/

middle clip position on the needle ?

are you doing plug chops for the main jet ?
http://www.blasterforum.com/threads/how-to-plug-chop.53237/

 

[Michael Powell]

Alright thank you both for your inputs I will look into everything you suggested after school tomorrow.

 

[best]

On my carb no matter how I jet it still runs lean. Me and my uncle came to the conclusion that the carb big enough. So we are looking for a carb that would be a good size we plan on working on some more.

Wrong conclusion. Any size carb can be jetted up to be rich.
If it is constantly lean you must have an air leak somewhere.
Read AWK08's words very carefully.

Steve

 

[Larry's Shee]

I'm running a ported stock cyl and Fat Bastard pipe with stock carb. It's already peaky enough (and fast enough) for my old azz. Doubt if I'll ever try a bigger carb, unless it's free