1984 SUPER SPORT 15 Yamaha F70

Optimizing the performance of Boston Whaler boats
uluca09
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Joined: Fri Oct 04, 2019 1:33 pm

1984 SUPER SPORT 15 Yamaha F70

Postby uluca09 » Tue Jan 25, 2022 2:23 pm

Recommend a propeller for a 1984 SUPER SPORT 15 with Yamaha F70.

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Phil T
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Location: Was Maine. Temporarily Kentucky

Re: 1984 SUPER SPORT 15 Yamaha F70

Postby Phil T » Tue Jan 25, 2022 2:37 pm

Owners of Super Sport 15 boats with an F70 have tested many make and model propellers. Here are their recommendations.

13 x 16 PowerTech SCD3 (17" if running light on flat water)
13.25 x 17” Turbo 1

*Note size is for the make and model listed and is not transferable.
Presumes engine is mounted two-holes up.
1992 Outrage 17
2019 E-TEC 90
2018 LoadRite 18280096VT
Member since 2003

uluca09
Posts: 6
Joined: Fri Oct 04, 2019 1:33 pm

Re: 1984 SUPER SPORT 15 Yamaha F70

Postby uluca09 » Wed Jan 26, 2022 1:52 am

Thanks, my friend.

uluca09
Posts: 6
Joined: Fri Oct 04, 2019 1:33 pm

1984 SUPER SPORT 15 Yamaha F70

Postby uluca09 » Thu Jan 27, 2022 5:10 pm

[Moderator's note: moved a new thread begun on precisely the same topic as this thread to this original thread. Rewrote the question from the new thread to be clear and have the necessary information contained in the question:]

For a 1984 SUPER SPORT 15 with a Yamaha F70 long-shaft engine, which engine mounting height is recommended?

[Please do not start a new thread for every new question you want to ask about the set-up of your 1984 SUPER SPORT 15 with a Yamaha F70--jimh]

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Phil T
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Location: Was Maine. Temporarily Kentucky

Re: 70 hp yamaha

Postby Phil T » Thu Jan 27, 2022 9:21 pm

Ideal mounting height is for the top bolts are in the third hole counting down from the top.

[Moderator's note for the OP in this thread: the engine mounting described above is called a two-holes-up mounting. Please read:

ENGINE MOUNTING HEIGHT
https://continuouswave.com/forum/viewto ... ?f=7&t=739

The above article was written very carefully with the goal of NOT HAVING TO EXPLAIN engine mounting height description over and over and over.]
1992 Outrage 17
2019 E-TEC 90
2018 LoadRite 18280096VT
Member since 2003