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post #1 of (permalink) Old 06-15-2004, 08:55 PM Thread Starter
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O/T - Motorcycle oil question

So my 30 year old Honda motorcycle has bad rings in one of the 4 cylinders and burns a little oil after the engine warms up. I was thinking of running a heavier duty oil to minimize the amount of oil that is burned off by making it past the rings, but then I started thinkin about how it may affect the clutch. Right now the engine has 10W40 in it. Can I go any thicker without damaging the clutch? Thanks.
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post #2 of (permalink) Old 06-17-2004, 05:34 AM
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Re: O/T - Motorcycle oil question

You can go to 20W50 (as I never found 10W50), but the gain will be small. Make sure you use motorcycle oil and not normal car oil. There's a tiny risk of the clutch slipping a bit, because of the thicker oil and the plates and springs being old. Additives wil make the clutch almost certainly slip. I guess a little rebuilt or just adding 10W40 is what I would do.
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