Hi guys, just recently bought a ltz-400, after taking it on its first long ride found oil to be spitting out the breather pipe under the seat.

the faster I go the more comes out. I understand the worse case this could be a case of new piston and rings 😞.

i did do an oil change and filter the same day of the ride and over a 35 mile ride is spat near enough the whole tank of oil out. The day before I took it out I had the quad on it’s side so not sure if I have done something that could have caused it.

anything I can try before I go through the mental and financial pain of a rebuild?

cheers guys

 

Don't know the LTZ at all but engine breathers normally end in the airbox so fumes can be sucked into the cylinder and burnt off. Single cylinder 400cc engines suck 400ccs of air into the crankcase as the piston rises and blow out 400cc of air as it falls, so that breather works hard. If oil is coming through something is wrong, making it pick oil up as it blows the air out. Wrong oil level is the most common cause. Piston "blow by" doesn't cause the same symptoms on a single cylinder engine, unless it uses the vacuum breather system, and quads don't seem to use that system.