I have been noticing some oil loss when i check my site glass from ride to ride, i usually change the oil every other ride or so but i have noticed a drop in my level and i could swear i added some the last time before i took it out and level seems to have dropped a little again. I have noticed a little bit more smoke coming out my exhaust or i'am just a little nervous the the crank seal let loose again. I have had the crank seals changed a few years back and i really don't know the life expectancy of the crank seals but the last time i had it apart they still seemed very pliable and soft, if that means anything :bang: Could anyone tell me a good way to tell if the crank seal is allowing tranny fluid into the engine other than what i described? The plug after a couple of rides seems a little darker on the plug insulator because it's usually tan. I run type F in the tranny, could this hurt the crank or cylinder if it is getting in there? I used to run 10w30 and i noticed a build up on the cylinder the last time this happend. I seem to be fixing this thing more than i ride it. Why did kawasaki make you split the cases just to change a crank seal :| I would really appriciate any help or direction on this ....Thanks Vic