2007 Brute Force 750. I had the same problem last night. Had about a 15 mile road ride home. I was hitting it pretty hard most of the way. Almost home, oil started spraying up from underneath the airbox somewhere. The temperature gauge flashed a few times also. Would overheating cause this? Or do I need to look for a hose leak? The bike seems to still run fine. Thanks

High oil temp. There shouldn't be any oil spraying out anywhere unless one of the hoses is off of the air box. The crankcase vent hose is attatched to the airbox and then there is a little "nub" hose thing (for the lack of the correct terminology) that can come off/leak oil out. High oil temp causes the oil to break down, and it's more likely for the "thin" vapors to build up in the airbox. High oil temp will also help lead to the coolant warning light to come on....and also leads to torn up engines. It's a known issue with the V-twin kawi's-and is exactly why it's critical to keep good, clean oil in the motor-and change it often. Or put an oil cooler on it if it's not already too late. Good luck.

 

2007 Brute Force 750. I had the same problem last night. Had about a 15 mile road ride home. I was hitting it pretty hard most of the way. Almost home, oil started spraying up from underneath the airbox somewhere. The temperature gauge flashed a few times also. Would overheating cause this? Or do I need to look for a hose leak? The bike seems to still run fine. Thanks

 

If this is the one I remember, it turned out to be a broken piston from laying it on its side and not removing the spark plugs to blow the excess oil that ran into the cylinder out before attempting to start it again.

 

What did you ever find out about this problem. I was out this weekend and put my
750i on its side. Now this "puking" of oil has happend to me. What did you need to do to fix it or did it just fix itself? Thanks.

 

Thanks I'll take a look tonight.

 

Check the oil tube that is located between the head and the crankcase. It is below and in front of the air box, and if one of the O-rings fail it will spray oil on the air box.

Also, check inside the air box for any excess oil that may have sprayed out of an overpressurized crankcase, and in through the crankcase vapor lines. If that happens it can be from a broken piston ring, a too tight exhaust valve, or from an exhaust restriction.

Better yet, I could take it off your hands for a hundred bucks if you are fairly local!