What jet size is best for low altitude

[Connor121R]

I live in new jersey at about 110 ft elevation. What would be the best jet size?

 

[Chainlube]

What carb are you running? Got a picture of it?

 

[Connor121R]

Yea, its an old NT carb. It has a slightly different design from the newer ones I have.

 

[Chainlube]

You're probably good with the one that's in it now. You just have to adjust the needle. You can learn all about it here.

Carby - NT Carb Tuning Basics

A few basics on the Happytime NT Carburetor:- Some pics identifying the basic parts:- Float Bowl Gasket Also see srdavo's NT Carburetor Assembly Pics for a bit more info. Brief Description Of Operation The NT side-draught carburetor operates by drawing air into the air...

motoredbikes.com

 

[Connor121R]

Alright thanks, would it change if I ran mz65?

 

[ImpulseRocket]

Alright thanks, would it change if I ran mz65?

Generally the fueling actually gets richer with a pipe since there is less fuel beinlg left in the exhaust and being pushed back into the cylinder. Sometimes requiring a smaller jet.