Emission Systems For Cars And Trucks Cheapest Parts On the Web

hey ok thanks for reading this i have a yamaha blaster and it does run and all we bought a brandnew carb for it and we bored the cylinder it is the smalliest bore size though and we got the over sized piston new boysen reeds all new gasket set all new bearing seals all around new oil oil injection blocked of has stock muffler and pipe though and the carb we bought it is brandnew but it is a brandnew stock carb if that matters and when i start the atv it runs and all but when im in first i have to hold the clutch in half way to get the revs up high or else it will just go one speed super slow and even if i hold the trottle open all the way it just bogs out and then oncwe i get the revs up and i switch into secound same thing and then 3rd and 4th 5th and 6th are the worst i cant even go into 6th with out it totally just boggin out so bad un less im on a hill but once the revs are up it goes good but please help me thanks a bunch