Friday, July 30, 2010

I have 1999 yamaha banshee and when it gets warmed up it blows oil out of the gear case vent whats wrong?

Either the crankcase is over filled, or the right crankshaft seal is leaking.


The pressure from the bottom end would blow through the seal and force the oil out of the breather.I have 1999 yamaha banshee and when it gets warmed up it blows oil out of the gear case vent whats wrong?
i'm in Canada and not familiar with the banshee, but I'm thinking its over full

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