It will not work I have a new 330 kit and the jug want go in the bottom end

 

I have a 1992 Honda trx250x i just put a 300 Big bore kit on my question is the value adjustment is it different now with a big bore kit cause i can't get them right it's pushing out of the back of the carb

 

I bought a big bore kit for a 250 x and it has a 72 mm piston i had to grind a little bit out of the block to get the cylinder to set all the way down in the block so i don't think a big bore kit will fit without cutting the block to accept the cylinder

 

no the valve setting is the same. Set your piston to top dead center.use a filler gauge and set clearance to 000.5 intake and exhaust