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    2020 Yamaha 115 vmax cooling issue

    Yes this is run in saltwater motor is flushed every time after use I have a brand water pump kit to install and waiting on thermostat to arrive When boat sits for 2 weeks I lower into bay start motor no peeing in 20 seconds I shutoff hook up hose flushing engine takes about a minute to get...
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    2020 Yamaha 115 vmax cooling issue

    It's very unusual I have searched everywhere and have not come up with anything close to my problem 2 boat repair shops said its the thermostat but they were not yamaha dealers I have a 3 year warranty BUT warranty doesn't cover cooling systems
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    2020 Yamaha 115 vmax cooling issue

    Just pulled
  4. S

    2020 Yamaha 115 vmax cooling issue

    There was a new pump installed in spring last year had issue all summer that's how I was able to come up with the start turn off re start and it works replaced pump late summer still had issues Trying the thermostat just don't feel that could be it but who knows
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    2020 Yamaha 115 vmax cooling issue

    If I let motor run overheat alarm comes on pump was replaced 6 months ago It acts like it is air locked
  6. S

    2020 Yamaha 115 vmax cooling issue

    Need help I have a Yamaha 115 outboard 4 stroke when boat is first started no water out tell tale. If boat sits for more than 24 hrs I have to flush out motor (boat not running) wait 5 min then lower boat into water. Start boat turn off immediately then restart water will come out telltale. It’s...
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