I checked to oil in my Harley Davidson MC (Harley’s are air cooled by the way, not water) and there seemed to be milk oil on the cap and the dip stick. I live in WI and run the bike at least once a week. Would that cause this to happen.
The bike is kept in a garage. I only get to start it and not ride it due to the snow and stuff. If i just let it idel like that until operating temp, would that still cause this problem.
Answer by boogie_4wheel
Not ALL HD are air cooled, but I’m assuming that yours is not water-cooled.
If there is any question of water, do an oil/filter change.
Any water that forms from the condensation would vaporize from the heat and work its way out of the motor, just be sure that the bike is being ridden enough to reach operating temperature.
Is your bike parked outside or wash jobs? Pooling water at the dip stick…
Answer by Dani G
I a word, Yes. If your bike is laid up for the winter it is an extremely bad idea to run it once a week. Every time you run it the engine warms up and then cools down and every time it cools down, some more condensation forms inside the cranckase. This is definitely not good.
If you are going to run it, then you should allow to run long enough to boil off any condensation. This means letting it run several minutes at an oil temperature of at least 212F/100C. Anything less and you’re going to get more water in the engine.
I’ve equipped my own Ultra Classic with an oil temp gauge and I fire it once per winter. Not because the bike needs it (it doesn’t), but because I do. It takes a good 25-30 minutes for the oil to reach 230F, at which point I usually shut it down.
For now, you might want to drain the contaminated oil form your engine and pour in some fresh one.
Answer by Andy
When you say you run it do you mean you just run the engine and don’t actually ride it?If you just start it and warm it up that’s probably your problem.In cold weather just running it til it’s warm and shutting it down could cause condensation problems.I’d change the oil and quit starting it til you can actually ride it long enough to get the oil temp thoroughly hot.Put it on a battery tender and quit starting it til you can ride it.