R1200RS + R1250RS Forum
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Wed Aug 28, 2024 12:44 am
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I had to unexpectedly let my bike sit for 35 days. I don't believe it's sat that long without me riding it since I brought it home. Expecting to ride it in to work tomorrow, I went out to look things over and started it up. It started immediately, but blew the most impressive cloud of grey smoke I've ever seen from it. I smoked for, oh, 45 seconds. The bike was on the side stand all that time. Is this normal? I've heard stories of oil leaking past the rings after long periods of non-use but 35 days doesn't seem that long. Oil level looks good so I'm sure it's safe to ride. |
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Yep, they can all do that on a 'sidestamd holiday restart' as you describe - watched a video on a 4 cylinder strip down and the guy diagnosed sidestand starts on lifetime of engine had bore wear left to right tdue to oil circulation. I now always start bike in vertical, upright, usually mainstand, but that is a known issue with any boxer engine left on sidestand for a few eeks - no damage done. |
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Zitat von Davidnapo im Beitrag #4 Unless the piston rings are somehow prevented from revolving around the piston, at some point in time, the gaps will be at the bottom of the left cylinder. So, if parked on the side stand, any residual oil in the cylinder will seep past the rings, into the combustion chamber. Ignite the spark plug, and you'll burn a bit of oil, fuel and air.....producing grey-white smoke. Nothing to worry about.
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Zitat von Davidnapo im Beitrag #4 since moving house, my bike is parked on the side stand on a steep drive. I reverse the bike off the road to park with the engine off. This seems to be enough time for the oil to leave the left pot as I don't get any smoke even if the bike has been left for weeks during bad weather (I was going to say winter but this year ...). 2024-08-28 15.25.20.jpg - Bild entfernt (keine Rechte) Maybe get into a routine of turning the engine off and keeping the bike upright for a few seconds before plonking it on the side stand.
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