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  1. Daniel Pearson is a Suzuki Dealer and gave a 20...

    Daniel Pearson is a Suzuki Dealer and gave a 20 hp engine to one of the racers. Unfortunately they were too busy to put another boat together. The Suzuki prop shaft is a 10 spline, different than the...
  2. Any boat with a 20 hp four stroke can race APBA...

    Any boat with a 20 hp four stroke can race APBA in BSR or SSR15 in 2024 and 2025. Any boat, any weight, any prop shaft height.
    Therefore any GT-15 GT-30 with a 20 can race in APBA. I am in fact...
  3. APBA stock outboard has a very few boat rules but...

    APBA stock outboard has a very few boat rules but one is no more than a 5/8" longitudinal step in the hull bottom and no transverse step. Tim Kurcz bought me the Dillon plans and these photos are of...
  4. The c/l of the prop shaft 3/4" below the bottom...

    The c/l of the prop shaft 3/4" below the bottom is the same as the UIM GT-15 and GT-30 classes and the APBA stock runabout classes. The Tohatsu has a electronic guardian mode for overheating and no...
  5. Engine height I set with the same APBA Brown...

    Engine height I set with the same APBA Brown height checker I use on my CSR Yamato. CL of prop shaft 3/4" below the bottom. Up to 85 mph the round nose mercury gear case on the 300 hp Mercury's I...
  6. Different strokes for different folks. We...

    Different strokes for different folks.

    We have a number of 20 hp Tohatsu/Mercury engines being fitted to existing or new boats.

    Ron Hill, a kneeler and a sit down
    Jim Gardiner, a new short...
  7. The four stroke engine is legal to race 15SSR and...

    The four stroke engine is legal to race 15SSR and BSR APBA Stock Outboard. 2023 there were 30 drivers scoring points in 15SSR and 0 drivers scoring points in BSR, although 63 drivers scored points in...
  8. True, but it was a one time, first try with a 480...

    True, but it was a one time, first try with a 480 lb motor, boat and driver. (I am 200) No Tach fitted.

    The Carolina Virginia Racing Association has purchased a 4 stroke Tohatsu and commissioned...
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    What you said. Our club, the Carolina Virginia...

    What you said. Our club, the Carolina Virginia Racing Association has purchased a new 20 hp Tohatsu and commissioned John Runne to build a boat for it. It will be displayed and available for a ride...
  10. All Mercury badge engines 30 hp and under are...

    All Mercury badge engines 30 hp and under are manufactured by Tohatsu.
  11. https://www.apba.org/old/internal/print_sanction.p...

    https://www.apba.org/old/internal/print_sanction.php?EditID=13713&fbclid=IwAR18qQv1sSIQFeR766B0-U7r8TJrihf-H9Z9KHAD3H3ufswrJY-aAQnCSWk

    The Marathon was timed, 20 minutes. One Marathon Saturday,...
  12. My first race was Jessup marathon, as in first...

    My first race was Jessup marathon, as in first time I ever raced a boat. I love my seat. Fixed the sliding seat after the first day. The steering slides 18” also. It was like working out on the...
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    Jan 26, 2023, the APBA approved any 20hp four...

    Jan 26, 2023, the APBA approved any 20hp four stroke legal in the 15SSR & BSR class on a probationary status. No height, weight, or boat restrictions. Now that we got what we asked for, time to step...
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    The UIM GT15 class for 9 to 16 yr old racers and...

    The UIM GT15 class for 9 to 16 yr old racers and the GT30 are well established in Europe. I have spent a lot of time watching videos and I don't see why not build one. After all, the little ships...
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    https://youtu.be/OrpPHLkDLE0

    https://youtu.be/OrpPHLkDLE0
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    I am OEM with Mercury but I went on line to their...

    I am OEM with Mercury but I went on line to their portal and none were to be had. Mercury have none.
    I live in a tiny town in North Carolina on the Pamlico and the local boat yard has a small ships...
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    A Service manual from online dealers is $80. ...

    A Service manual from online dealers is $80.
    The installation manual is online https://www.tohatsu.com/marine/common/owners_manual/003-11143-7BB1_MFS9.9-20E_US_EN_web.pdf
    There is a dealer...
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    There are multiple versions of the 20 hp, aside...

    There are multiple versions of the 20 hp, aside from 15, 20, 25" legs. Two with tillers, two without tillers, remote control, electric start. They do have a guardian overheat mode so what you...
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    Ron, some thoughts on your post. You displayed...

    Ron, some thoughts on your post.

    You displayed a picture of a 20 hp Tohatsu so that is the one I started to research. I would think that pushing a new 15 into classes that have boats and motors...
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    Does anyone race B stock anymore? I bought a nice...

    Does anyone race B stock anymore? I bought a nice Bennett BSR with an 80 Yamato off of Facebook and then I find that B Stock wasn't raced at TOPO or locally this year. Also the last two races locally...
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    A teenager can run that Chrysler gear case every...

    A teenager can run that Chrysler gear case every day, all summer, without the gear case plugs in. Ask me how I know.
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    Displayed at Fabio Buzzi's factory.

    Displayed at Fabio Buzzi's factory.
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    Interesting. For the first time I see that my...

    Interesting. For the first time I see that my engine has a prototype short tower compared to the engines sold to the public and from the photos of other "60's" I have seen on the web. I never...
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    Maybe not the coolest, but pretty cool. This was...

    Maybe not the coolest, but pretty cool. This was a Martin Factory engine. No serial number. It has been in storage since new.
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    No definition on the 99 cu inch OMC? You have...

    No definition on the 99 cu inch OMC? You have seen it a hundred times but not realized it.

    Its not this motor.
  26. Replies
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    Identifying the evinrude 99 inch outboard. ...

    Identifying the evinrude 99 inch outboard.

    Karen Black in Five Easy Pieces" blinked her come hither eyes at Jack Nicholson and smiled saying "Hint" "Hint"

    The attachment photo was named 150...
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    Starflite Too is in existence with a tower and...

    Starflite Too is in existence with a tower and foot only. I would surmise that "Too's" power head went to Starflite III with a new tower and foot. Starflite IV would then have had a new power head...
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    Johnson PR-50 This is the left nut engine. ...

    Johnson PR-50

    This is the left nut engine.

    The right nut engine is going to take some head scratching as that is an unpublished photo except for one time by Sam Cullis.
  29. Replies
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    Wasn't this thread "Name that outboard" ? If...

    Wasn't this thread "Name that outboard" ?

    If no one recognizes one famous and one unknown but should be famous engine, then

    How about naming a Big Johnson?
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    I would give the right nut for this one. ...

    I would give the right nut for this one.

    http://www.forumpictureprocessor.com/pictureprocessor/images/150MPH%20engine.jpg
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    I would give my left nut for this engine.

    I would give my left nut for this engine.
  32. Replies
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    This Martin 200 was an example of a no serial...

    This Martin 200 was an example of a no serial number factory race motor also.
  33. Replies
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    Correct. This was a no serial number experimental...

    Correct. This was a no serial number experimental factory engine. The twist grip decal was a bit of an insider laugh. No water pump so notice the forced cooling water holes on the leading edge of the...
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    These are some cropped shots of my baby. I...

    These are some cropped shots of my baby.
    I believe that this particular engine was never run except in a tank 60 yrs ago and 6 yrs ago.
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    The motor is displayed in the entrance to Fabio...

    The motor is displayed in the entrance to Fabio Buzzi's factory in Italy. One of his engineers designed it when working for Carniti. The guys in the machine shop there have another not so racy engine...
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    Not Swedish. The name is written clearly on top...

    Not Swedish. The name is written clearly on top of the Flywheel.

    Oh, I forgot to post that picture.
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    Not many of these around either.

    Not many of these around either.
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    Picture and patent. My teenage buddy got a...

    Picture and patent.

    My teenage buddy got a racing KG-4 after the seller moved up to one of the conversion 20-H's. some 40 + years ago. Hearing that howl the first time was memorable. That green...
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    I have confirmation on one, and was also told by...

    I have confirmation on one, and was also told by Ronald Lietha that he was offered one to buy, but had not the interest at that time. Just don't know if it was the same one or different.

    A note...
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    One of Two

    One of Two
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    My two cents would be a George Crouch Design. He...

    My two cents would be a George Crouch Design. He had Dodge connections.
    That boat is nothing that came down an assembly line. Need a left nut? I'll trade you mine for that boat.

    George Crouch...
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    Elsinore Race Boat Company??

    Can you California Guys tell me anything about the Elsinore Boat company?

    I have coveted the boat (Elsinore race boat) in the photo for many years. I have a VR-45 that is close enough to the...
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    Top 'O Michigan Web sight ?

    Top 'O Michigan Web site? It was a blog for the racers. I saw one last year but cannot find it now. Anyone have it?
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    torque which way?

    I have been scratching my head abot what you are saying. For sure with out the mass of the powerhead increasing the inertia that the torque steer or the moment from the prop in the water acts upon, I...
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    I am never going to say never again. Cool photos....

    I am never going to say never again. Cool photos.

    I tear into the first Mark 5 tomorrow night.

    Unusual engines to add to the list. This one, the powerhead is fixed, only the tower steers.
    ...
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    Mercury Mark 5H.....Never before seen.

    Mercury Mark 5H.....Never before seen. That's because Mercury never made one. However, I always wanted the smallest green onion with an H tower. These engines are plentiful and I think the kids at...
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    Mystery Hubbell Over Drive LU

    I am hoping that someone can shed some light on the engine and boat that was mounted to this lower unit.

    I was told the following.

    Came from an OMC powered outboard built for the water speed...
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