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  1. M

    yamaha 15hp 4 stroke water in the oil

    Hi Guys, Well I have water in my oil, but here is my question. I have it mounted on a drift boat. The transom of the boat is on a big angle and i needed to trim the motor so the prop was way forward. Could this weird angle have possibly caused my problem or am I just looking at a head gasket...
  2. M

    2001 Yamaha 15HP 4 stroke Running rough at Idle

    Hi everyone, I have a 2001 15HP 4 stroke. Model F15Z It is electric start (My Dad's). It starts OK with the choke pulled out, but even after 3-5 minutes of idle with the choke out, as I push it in, the motor start to increase RPMS, and then dies when the choke is all the way in. I cannot seem...
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