up or down on the main

[emb17]

i just got my 86 all back together and running. Head is shaved, Ported, fmf, pj 36 with 200 main jet no air box. its strong till i hit last 1/4 of the throttle it starts to bog down do i need 2 go up on the main jet or down. im also running 104 octaine

[ROACHIE]

up...lean it out a bit see if that helps

[sblt500r]

to lean it out you need a smaller jet. 200 sounds too large

[CrazyLT250R]

damm you really need to lean that thing down im running with a 150 main and a 45 pilot with that same carb a 200 is to rich... try out a 150...

[zillaguy89]

200 sounds waayyy to big....i wouldn't jump all the way down to a 150 just yet though.....I'd try a 180 and see what that does.....if the bogging quits, I'd then start out with a new spark plug and give it a final check that way

[emb17]

im at 5000ft also so do you jet down or jet up when u go up in altitude

[CrazyLT250R]

ill say that for that altitud yo must be in a 160 no more than that, i have my needle all the way down and it kicks for sure it had a bigger jet and it used to do that and it didint want to go WOT or wheelie how it does now... i ran one time with a 135 main and 60 pilot and it did rock like that had a good response on low end but sure she wasted gas as hell and change it for what is now and i saves allot o gas now....

[emb17]

does any1 know the equivelant chart fo the mikuni to the keihen i had a 230 main in the mikuni maybe i can go off of that. Also its a pj 36 not a 34 thanks for all the replies so far

[emb17]

i know i seen someone post a equievlent chart for jets sizes on here been searching with no luck if anyone knows where it is forwared it to me please. ty

[emb17]

well i went with a 190 first did same thing plug was black. went to a 180 9/10s throttle still lags but when i did a plug chop it was white dont know what to do now.