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  1. G

    flushing motor with CLR

    I just wanna purge my ‘89 Yamaha F90 2 stroke. I have already removed the head cover and cleaned it and replaced/cleaned the thermostat, however before I got the hang of ‘heating’ up the bolts before removing them I broke a couple on the exhaust manifold cover. So if I can clean it without...
  2. G

    flushing motor with CLR

    Old thread , but great topic. I’m thinking of trying the same thing. If I’m not mistaken the L. In CLR is Lyme. If something designed to remove Lyme didn’t work then why is RydLyme the go to at this point in time. Plus, I don’t see why you would need 100s of gallons as was mentioned...
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