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Getting oil to crank bearing - does this work?

Posted: 12:42 pm May 24 2010
by ihatefalling
Rode the KDX on a long Dual SPort ride last weekend. Probably 70 or so highway miles.

In that situation I usually cruise around 40-45 mph or so....so I don't push it hard.

I remember reading a post where there was some concern about running at that low RPM for long stretches, maybe the crank bearing doesn't get lot's of oil because there's not that much oil/gas passing through.

Anyways.....while I was grinding away the highway miles, on downhill stretches where I knew momentum would keep the motor turning, every now and then I would hold down the kill button and open up the throttle while leaving it in gear and the motor turning over. My thought was ..... this would dump a load of gas/oil past the bearing without revving the motor real high (uneccessarily).

Wonder if that's a good idea to oil the bearing. Forgive me if that's been talked to death already and I didn't see it....

Posted: 02:29 pm May 24 2010
by fuzzy
What you have to worry about on the street is a lean-roll stick. IE WOT, then let off gas under load, can stick motor quickly. So after long stretches best habit is to pull clutch while letting off.

Posted: 08:09 pm May 24 2010
by ihatefalling
Makes sense. The engine wouls be turning at a high rpm and by letting off the gas quickly while the motor is still turning.....no gas/oil is getting in there while it's revving....thanks

Posted: 09:36 am May 25 2010
by fuzzy
Yep