yamaha

  1. M

    Outboard Alignment

    I have a 2018 C-302 with two 300HP Yamaha engines. They look like they're not aligned parallel to one another. I haven't done any measurements to verify what I think I'm seeing but am wondering two things. First are the engines supposed to be parallel with each other, or are they to be toed...
  2. P

    New Yamaha F350

    I’m taking delivery of a new 2025 R-27. I’m trying to purchase the 20hr service kit for the Yamaha 350 in advance. None of the parts websites list the new motor. Does it use the same parts as the F300 for this service?
  3. B

    Yamaha engine unstable RPMs

    I have a 2019 C302 Coupe with twin Yamaha 300 outboards. Recently I've been having issues with the starboard engine losing RPM's. Cruising along at 4,500 rpm on plane and anywhere between 5 mins and 30 mins the starboard engine starts dropping rpms. i.e. cruising at 4,500 rpms, it will all of...
  4. P

    Prop selection Yamaha 250 R25OB

    I have a 2020 R25OB. My fuel economy looks quit low when compared to others with the same boat and I am looking to try a different prop. Currently I have a 19T 15 1/4 prop which came with the boat. I can get up to 5100 RPM and about 32 mph - which translates into 1.2-1.4 mpg fuel economy. A...
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