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Found 9 results

  1. This auction is for a new never used Comprop 4x12.8x17 15 spline propeller. Model number M4547 . I bought it as a spare for my Yamaha 115 that was on my 18’ Hewes which unfortunately was totaled in Irma. It was stored under the helm wrapped in a towel and has never been used or mounted. Great deal for a lightweight easy to store spare prop. $50 and $15 shipping.
  2. I have a Yamaha HS4 21p 4 blade prop for sale. It was originally a 23p prop, but I had it modified to 21p with extra cup. Works and looks like new. Asking $350 OBO, can meet in Ellenton/Sarasota area. Will ship free within Florida... or $25 outside Florida. Call, Text, or Email. 941.224.5846 or jbibler at gmail.com Josh B.
  3. hewes tailfisher

    any thoughts on the size on a 4 blade ss prop. currently running a 3 blade 16p -runs ok could use better hole shot and top end 70hp Yamaha 2 stroke-17' tailfisher
  4. Re-posting to place the topic on the forum correctly... thanks. Redfisher 16 (2017), Yamaha VF115 SHO, Atlas 6" Jack Plate + (1/2" wedge), Merc SpitFire X7 17P 4-blade See attached chart for test results. Out of 10 props tested, these 7 props made it to the final report. Many well-deserved thanks go out to Dale Carter (lurem), a fellow RF 16 owner and prop guru who loaned me three of his own custom propellers to use for testing. Also, many thanks to Skip Lyshon at MBG and the staff at Bay Marine Inc. for all their help, expert advice, and prop swapping. This is the first and only Redfisher 16, so far, to be ordered with a factory rigged 115 VMAX SHO. It's slightly heavier than the 4-stroke 90, so the boat sits a bit lower on the stern. But, I don't care about draft where I fish. The goal here was to find the perfect prop which would utilize the strong performance of the SHO, and minimize porpoising and cavitation in turns at higher speeds. After many trials, there was a clear winner - the Mercury SpitFire X7 Alloy 4-blade. The only difficult choice then, was pitch size. I chose the 17 pitch because I plan to add more weight to the boat. I tried different PVS port plug inserts but ended up going with the solid plugs because porting is not needed on the 4-stroke SHO. Porting is more beneficial for hole shot on a 2-stroke. The SpitFire X7 does not break loose in turns. It handles and accelerates like a slot car. Throttle response is immediate. Hole Shot is 3 seconds (or less). Best fuel economy was 7.9 MPG at 3800 RPM. Porpoising has been minimized. Prop slip is 4%. Gary Prop_Tests5.pdf
  5. I have a 2003 18.5 MA with Yamaha 150 2 stroke. It came with a 23p Tempest 3 blade prop. 45ish at 5400rpm loaded down. I am not happy with the hole shot and wanted to try a 4 blade. After doing a bit of reading I decided to try a Powertech. My local boat dealer/service guy called Poertech and they are suggesting a 15p with my set up................19p is what I had in mind.....Anyone with a similar set up?
  6. I'm looking for a used PowerTech SCD4R - 15P - YM90. Prop testing to get the optimum out of Yamaha F70 on Maverick 17' HPXVII. Contact thru IM or txt Eight 6 three, 8 sixty, fifty eight, 63. Thx.
  7. HPXV 17 Prop Help

    I recently purchased a 2016 Maverick HPXV 17 with the Yamaha F70 motor. The current SS prop is marked on the outside with K16. After some research, I discovered the prop is a Yamaha MAR-GYT3B-V4-16. The motor can only hit 5500 RPM, trimmed out with no occupants on the boat and a very light load. I would like to get a prop that will help get the motor closer to 6300 RPM wide open. What are some of the props being used to achieve optimum performance with the F70 on the HPXVII hull? Thanks in advance.
  8. Props, The never ending question

    I am looking for someone who has recently propped a 2600TRS with a 300hp Yamaha. Mine is only getting 50MPH at WOT and maybe squeezing 5500 RPM's