[Busboy]

I have two ASW Zircon go karts (150cc).

Both of them, at about the same time, started discharging oil from the breather line off of the valve covers, into the air cleaner box.

I first noticed this when the machines were running poorly, and took the cleaner off to check the filters. The cleaners were full of oil, and the filters were clogged with oil.

I cleaned the cleaner boxes, the filters, and disconnected the breather line from the air filter box. The machines ran fine, but the breather line dumped oil all over the engine.

Any suggestions?

Can I simply plug this breather line, or will the crank case build up too much pressure and start blowing oil seals?