2001 kx125 wont kick start only pop starts
owned this bike for about a year. blew this bike up at the track. then rebuilt it cylinder looked ok. has good compression cleaned the carb 3 times. installed different boyesen reeds.
i need to pop start the bike for it to run. when it runs it runs great, no mis good power idles good. then ill turn it off and if i wait 30 seconds i cant kick start it.
some times if i let it sit over night i can kick start it and it starts on the 2nd kick but then i cant kick start it again. i have not adjusted any air screws or changed jets. the bike ran great for the previous 5 months.
new plug, tried remixing new fuel after i drained the existing fuel. cleaned carb 3 times.
when i bought the bike it was summer. then i added a pro circuit pipe and never jetted it. now thats its cold i wonder if the weather may be a factor.
help cause ive been at this for weeks