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My oil problem

3363 Views 16 Replies 12 Participants Last post by  MNStryker26
So I had around 2000 miles on the bike and decided to swich to full synthetic. The only motorcycle oil (4t) I saw at the time was
20w-50. So I bought that at 10.50 per quart. changed the oil and filter, started up the bike and it ran like crap. Its was knocking and pinging like crazy. I let it idle for a few minutes and it got a little better so I took it out for a few miles. It knocked the whole time. It did settle down after 30 or so miles but every time I let it cool it knocked again every time I started it back up. Long story short I went back and got some regular 10w-40 4t oil, changed it again and it ran like a dream. I think maybe the engine wasnt broke in enough for the full synthetic oil. or maybe 20w-50 was just to heavy of an oil. Either way I'm gonna stick with regular stuff for now.
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mine ran crummy as well when I ran 20w-50 once the oil warmed up (20 minutes or so) it ran ok. After 2 or 3 rides with the oil I went back to 10w-40 and it runs good again.
its not the oil filter I'm still running the same filter when I put in the 20w-50.
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