cardboard brown

just the electrode jetted leaner

warmed up five minutes

ngk br9es .030 gap tried closer and wider gap with no change its not ridable when i come to a stop it will not move gotta shut it off for about ten mins before it will go again

yup they are in the middle tried up one notch and down one runs even worse mix screws out one turn tried both ways runs worse

it will idle fine hit throttle but revs little but not enuf to engage clutch

seems like weak spark but checked while this was happening but sparked good

yup

one turn out

do you think pick up coil could be bad throwing off timing

it only has low speed air bleed screws

ive tried all sorts of settings this is where it runs best

i had a polaris shop rejet this machine and made about 500 miles and it melted down so i now have it back to stock

or so they say

talked to many different shops they all said the cdi box was the culprit

but it wasnt

actually it runs worse as it warms up

sorry i confused you

my first question said it boggs so bad it wont move after 10 miles or once ist gets warmed up good

ill try jetting more

it boggs bad when motor is warm

you thinkin bigger pilot jet then?

compression stays within 10 psi cold to hot

never thought about crank seals have to hit them with carb cleaner compression is 135

maybe rings didnt seat yet