stage one or stage two

[honda 400ex 69]

should i use stage one or two i just bought a dyno jet kit.

i have a after market pipe and i am thinking about taking my air box lid off it says to use a DJ146 in the instructions for stage one. but in the stage two it says use a DJ170 what would you go with i need help fast

Stage 2 definitly,,I'd start off with a 165 if you plan on taken the airbox lid off,,if ya leave it on go with a 160,,this should get ya just about perfect.. I run a 165 in mine with no lid and alot more motor mods than you,,so try them first and I think you'll be OK,,,

but remember,,when dealing with a carb only make 1 change at a time and make sure the bike is warm before coming to any conclusions on whether the jetting is correct..:cool: