(Oil vent hose in air-box) side effect.
Posted June 11, 2004 - 08:32 AM
If your WR450 is upside down for a period of time. (1-3 minutes), oil will drain out of the top of your motor into your air-box. I know this because it happened to me.
I was trail riding one day when I crashed trying to go across the side of a steep hill. I ended up rolling to the bottom of the hill while the WR stayed where I crashed, but it was upside down. I climbed back up the hill, and shut the gas off, but then I waited for a minute for my friend to show up so he could help me pick the bike up. ( I was tired, it was muddy as hell, and the hill was really steep.) Anyway, we finally get the bike on it's wheels, I turn on the gas, and the WR fires right up.
I was totally unaware of any problem.
I ride for about an hour, and right when we get back to camp, I'm idling through the campground when the WR stalls and dies. Will not restart.
Looking her over, I find that my air-box is about an 1/8 full of oil, and my air filter is SOAKED in oil. I clean her up, change the air filter, and top her off with fresh oil. (only lost about 4-5 ounces). She fires right up and ran fine.
Have put about 10 hours on her since then with no problems. She's running great. I left the mod how it was. IMO, this side effect is pretty small compared to having water sucked into your motor.
Posted June 11, 2004 - 09:47 AM
Posted June 12, 2004 - 03:48 AM
Posted June 12, 2004 - 08:42 AM
Or am I off in left field?
Posted June 12, 2004 - 09:37 AM
Posted June 13, 2004 - 03:59 AM
Posted June 13, 2004 - 09:56 AM
Posted June 14, 2004 - 12:41 PM
Posted June 16, 2004 - 12:42 PM
Where did you route your hose - top of air box or bottom via cut hole? I drilled a hole in the bottom corner nearest the access panel and stuck a T into it and sealed it with silicone. The T allows oil to drip on the chain and when submerged motor will draw from the air box. Mine solution isn't perfect either since if water does enter the air box it collects in that area and can be drawn back into the crank case under extreme conditions. I know since it's happened to me twice now
I put the breater hose in the bottom corner near the access panel.
I like the "T" idea.
Posted June 16, 2004 - 08:26 PM