ok i here u guys saying a 86 lt250r with mods should keep up with stock 400ex well i get smoked buy em at the dunesi got paddles and they dont even need em to beat me
i got the following motor mods done

.60 over weisco piston
milled head and jug.10
fmf fatty expsansion chamber with fmf pipe
by the way i am running a 220 main jet



i was gonna get port and polish but dind tknow ho wmuch of a differance i would see

i couldnt get no speed onc ei hit fourth gear with my paddles draggin so i wen tto a 11 tooth in front and i can get fourth but no fifth what can i do to this thing to make it hit all 5 gears in the dunes and beta a stock 400ex please let me know thanks

 

any help

 

our old lt250r wich was a 1985 had some minor port and polishiing done to it fmf set up and was bored twice and it would eat 400ex and z400s and stuff mostly stock ones were the ones beating you stock or what?? because you should beable to beat them. also what kind of padles are you running and what were they runing.