new from ny jetting help

[gene83]

Hey guys new here from new York I have a blaster with a .50 bore open air box and a toomey b1 and stroker kit the jet is now a 250 any advice?

 

[Larry's Shee]

Is this a new set-up, or is it not running right? Sounds lean, not to mention extra needed for winter.
Have you done a plug chop/read? Recent leak test?

 

[gene83]

Bought it with this setup except had a 80 bore and a warped jug now I'm running a 50 over with same setup and not getting fuel

 

[gene83]

With new piston rings jug and head and all new gaskets

 

[jus_me]

250 sounds way to lean as Larry said. Besides being rich on the main jet. Have you checked float level and done a leakdown test?

 

[Blaaster]

At least a 310 main jet as Toomey recommend with holes drilled in the lid of the air box.

 

[Larry's Shee]

Next step would be a leakdown test, ensure that carb is squeky clean.
Considering the recommendations are for warmer weather,, add 2/3 sizes larger for the cold. Always start large and work your way down with plug chop/read.