havent road my 2006 YZ125 this year. i put it back together after a pretty bad crash (front end mostly) a couple months ago i put a gallon of gas/oil mix just to fire it up and run for a few minutes to check for coolant leaks. ran fine no problems that i can see. yesterday i went to fire it up for a friend to hear and i noticed a strange feel when i went to kick it over it was like the clutch was catching or something a very slight grinding feeling felt through the kickstart lever and i could hear something that sounded like sand on metal contact kind of grinding sound and the kick didnt act right. i changed the trans oil before i fired it the last time. i use torco oil 80w 600cm and a little bit extra. my fuel is premium pump with torco synthetic (purple) oil mixed about 38:1 maybe a touch heavier. normaly when i run the bike and park it it will leak a little bit of black oil out that vent tube, lots of dripping from here, whats this about? is it just build up?
33 minutes ago - 3 days left to answer.
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2 minutes ago
goes into nuetral fine and doesnt try to roll when i rev the motor. is there any way for water coolant to get in that port on the front of the cylinder where that vent tube comes from? and what is that box or port all about? can coolant get in the trans oil from internal seal problems? the black exuast oil that drips from that tube looked grayish like it had water in it, then after a few minutes it was black again. never seen it leak that much before, maybe i got water up there accidently when hosing the bike off? would that loosen up all that crud and cause it to leak that much exuast oil? also the silencer had it dripping out from the end too.
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