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trithemonk · October 3rd, 2022, 02:29 PM

I bought a 2012 Ninja 250R for my wife that only had 900mi on it, but it has been no end of trouble. Currently the biggest problem is that when running engine oil comes steadily up the crankcase breather hose the entire time the motorcycle is running and only ceases after the engine stops. The oil level (when the bike is sitting straight) was about half way up the sight glass, but now isn't visible at all yet still is forced out the breather. It doesn't smell gassy so I don't think the rings are bad, but I don't know what could be forcing the oil out continuously like this. I don't think it's been dropped, but it has been sitting for years apparently. Original owner is unknown.

October 3rd, 2022, 02:29 PM	#1
trithemonk ninjette.org newbie Name: Pete Location: Portsmouth VA Join Date: Oct 2022 Motorcycle(s): 2012 CBR250r and 2012 Ninja 250r Posts: 4	Engine oil gushing into Airbox I bought a 2012 Ninja 250R for my wife that only had 900mi on it, but it has been no end of trouble. Currently the biggest problem is that when running engine oil comes steadily up the crankcase breather hose the entire time the motorcycle is running and only ceases after the engine stops. The oil level (when the bike is sitting straight) was about half way up the sight glass, but now isn't visible at all yet still is forced out the breather. It doesn't smell gassy so I don't think the rings are bad, but I don't know what could be forcing the oil out continuously like this. I don't think it's been dropped, but it has been sitting for years apparently. Original owner is unknown.