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Knocking On Beta 290


j4amigo
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I just started my bike after about a year stood still started no worries, but got a knocking noise ? Changed piston rings and top bearing but still makes same noise any ideas what next ? Or any one recommend a good shop for rebuild thanks

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I had a 2005 that sat for too long without being started and the main bearings sounded like they were crushing rocks. It ran great but I had the bearings replaced immediately because running great was not likely to continue. You have to start them once in a while just to keep things oiled. I like to start my bike at least once a month in the winter leaving the choke on until it starts to gag on the rich mixture just to keep the bottom end lubed.

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Just curious why you would tear the engine down looking for a noise

Then change only a top brg and a set of rings

Did you inspect and measure anything?, spin the crank, feel and listen to the main brgs etc

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