Thread: 250 Yamaha 4 stroke not looking good
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Unread 10-25-2022, 10:20 PM
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Join Date: Oct 2006
Location: Raleigh, NC
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compression should be around 175 depending on the gauge. If its good, take a look with one of those bore scopes, if you dont see any damage, throw plug in it and see how it runs
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