New carb issue please help!!!

[nissanman68901]

I have a 1987 no mods except open air cleaner i bought a brand new carb for.it.from.zoom zoom.and they said it.should.be.all.set.and readt i.installed.yesterday and it starts fine revs ok sitting there but.when i go.drive it.and try.to.give it thougjtle.ot falls on its face right off the bat what should.i.do will this be a air fuel mixture prob or what im suppost to go ridding this weekend and i need it fixed please help

 

[mikesatvgraveyard]

carb woes

Try this-as it starts to sputter, pull the choke. If it piks up rpm, then u know your running lean. If it goes splat faster, overrich. From this info you can start to tune. Good Luck