Air box mode carb jet

[maupin81]

I'm doing the air box mod with a mikuni carb what main jet should I put in a 110 or a 115

[Megadan]

Originally Posted by maupin81

I'm doing the air box mod with a mikuni carb what main jet should I put in a 110 or a 115

For most folks at lower altitude a 110 main should suffice if you have a properly sized pilot jet. The 115 comes into play once the exhaust is modified or replaced with aftermarket.