Second gear a real dog need help

[jaybee240]

I have a rev box, stage one hot cam, and a white brothers e-series slip on. While i am riding in the woods second gear is a real dog to the point today that i didnt even use it climbing hills had to use first. Could this possibly be a jetting issue and if so what should I run

[honda400ex2003]

i would say around a 152 main, with the needle on the 3rd clip and 3 turns out on the f/a screw. would be sufficient for jetting but maybe a 150 would be better depending on elevation and such if you are up a bit higher. what gearing are you running, what year, stock compression? maybe it is time to do a bit of rebuilding if a compression test shows lower than 110 or 120 psi at least no lower than 100psi, this would be pretty low imo. steve

[hocman123]

the manual says the psi should be 100 -128 psi so 100 might be low but still good

[jaybee240]

its a 2001 400ex as far as i know its stock gearing and stock compression and I do know it has a 150 main in it i dont know what clip or what the pilot jet is. I have a 416 kit for it, just havent put it in yet also going to get a sparks timing key

[f4iracer]

check your sprockets and make sure they are stock. Are you bogging it down in 2nd when you hit the hills? YOu have to make sure if you're going up a hill in 2nd that you're in your power range otherwise if you go to slow it will dog up the hill.

I've hit a couple hills on mine where it just kinda creeps up to the top because i lost rpm after spinning the wheels in the dirt. If you keep your speed in 2nd it should rip right up the hill.

[fromtheside88]

Jaybee maybe if you weren't such a lil b**ch when u ride you wouldn't be havin any problems hahahaha (to everyone else.....he is my bro in law lol)

[aDviSol2y]

air, fuel, spark. check all 3 in that order.