Recent content by 173sport

  1. 1

    2005 f40 high rpm miss

    I have a 2005 f40 Yamaha that is driving me crazy. It has picked up a miss at 5900rpm and up. I can back off the throttle below 5900rpm or trim all the way down and plow water keeping the rpms under 5900 and it runs perfect. It feels like and electrical miss, not a fuel miss. It will run 6150rpm...
  2. 1

    2005 F40 rev limit?

    At what rpm does a 2005 F40 Yamaha hit the limiter? Thanks!
  3. 1

    Aluminum to Stainless

    Here's the needed info: 1. I want to switch from the current OEM aluminum prop to a Turbo Hot Shot prop and need to know what pitch to go with. 2. Current prop: Aluminum Yamaha part # 6H5-45945-00-EL. (Cupped Prop) 3. Diameter: 10-5/8x13 4. 31mph (GPS) @ 6200rpm 5. Yamaha F40TLDR 4 stroke 2005...
  4. 1

    What model is it?

    I have a Johnson GT175 ser# R08545723, Could someone tell me what year and is it a looper engine? <br /><br />Thanks
  5. 1

    6000 RPM Will it take it?

    Hi all,<br />This is my first post, so bare with me. <br />Let's start with the basics. I have a 2005 50hp Johnson 2cyl 2 stroke w/ pt&t. I'm running a 12x17 Ballistic prop. I'm turning 6000 rpm @ 37.5mph (gps) My question is; Will this engine take 6 grand? <br />The OEM prop was a 11.75x17, it...
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