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Author Topic:   SPORT 15, Yamaha F60, No Jack Plate

KeyRat posted 11-05-2008 07:30 PM ET (US)
What prop is recommended for a SPORT 15 with a Yamaha F60 four-cycle? Boat will be mainly used for touring and some water skiing. Aluminum or SS?
I found a few other threads posing the same question but they all had jack plates. Thanks.
zotcha posted 11-05-2008 08:28 PM ET (US)
KeyRat, are you running the standard issue 10.25 X 13 Yamaha black powdercoated stainless steel provided by Yamaha? Seems pretty generic and may work for most applications without jack plate. Much lighter than the Turbo Hot Shot that I have been running since stock, but jack plate was added at time of repower. That prop should be putting you in the recommended area of 5-6000 rpms and fine at that. What are your findings? zotcha.
PMUCCIOLO posted 11-06-2008 12:31 AM ET (US)
This is the propeller I had on my 1997 Standard 15 with a Yamaha F60 EFI mounted on the transom. I did not have a jack plate and all four bolt holes were through the transom above the base of the splash well. There were no lag bolts.
http://www.yamaha-motor.com/outboard/accessories/acscitemdetail/5/266/ 1103/8460/all/1/3969/0/detail.aspx
The 10 1/2" X 13" Series "G" propeller was perfect for the boat. The engine achieved 6,000 RPM at WOT and the boat popped up on a plane well and ran smoothly at a cruise of about 3,800 RPM. The fuel economy was nothing short of incredible. The 60HP four stroke EFI engine (either Yamaha or Mercury) is ideal for the classic 15' Boston Whaler hull. The engine is light, smooth, quiet, smoke free, efficient and easy to maintain. Parts are readily available and inexpensive.
My Yamaha parts connection is Andy Munao, Jr. at Shipyard Island Marine: andyjr@shipyardisland.com His knowledge of Yamaha engines is virtually encyclopedic and he's repowered a number of classic Boston Whalers with EFI four stroke Yamaha power.
Feel free to email me directly pmucciolo@cfl.rr.com if you'd like photographs of our old 15 with the F60 EFI.
Best of luck with a great boat and motor combination!
Lil Whaler Lover posted 11-06-2008 07:36 AM ET (US)
KeyRat, you have an ideal boat and motor combination. I have a F-60 Yamaha on a 15 Center Console. The motor is mounted up a couple of holes. It came with a 13" pitch Solas SS and would hit the the rev limiter with 2 aboard and trimming the motor all the way down. I changed to a 15" Solas SS and it is right for my application as I can occassionally hit the rev limiter fully trimmed out. If I was using the boat for skiing I would go with a 14" pitch Solas SS prop, as I believe the 13" would hit the rev limiter too easily.
After all that is said, the height the motor is mounted at is very important to optimize performance. You do not need a jack plate to achieve the correct height. Other brands of props may have slightly different effective pitch on their props so it is better if you can try several props to determine the best for your application.
KeyRat posted 11-06-2008 02:44 PM ET (US)
Great input. Thanks everyone.
I just sold the old motor (bad lower unit) which had been sitting inside the boat so now I can really start to get the boat going.
The motor did not come with a prop so I'm starting from scratch with no baseline.
It sounds like I may need to try a few props before I settle on the winner.
Where should I start my search for a prop? Local so I can try a few or online? Stainless or Aluminum?
Tohsgib posted 11-06-2008 03:11 PM ET (US)
Stainless
Tom W Clark posted 11-06-2008 04:26 PM ET (US)
The Yamaha Series G propeller is the same thing as a Stiletto Triad. They are both made by Precision Propeller Inc.
KeyRat posted 11-06-2008 04:34 PM ET (US)
I was just quoted $376.92 for the Yamaha prop (10-1/2x13p) from a local Yamaha dealer.
Is that a fair price?
elaelap posted 11-06-2008 09:05 PM ET (US)
KeyRat,
I'm running the cheap Yamaha 10" diameter 15" pitch white aluminum prop on my new F60/1987 center console 15, with the motor mounted two holes up. When I bought the boat the motor had been propped with the same model but in 17" pitch, and I was barely getting five thousand turns out of the thing. The move to a 15" pitch prop helped substantially--I'm up around 5800 rpm and just over 40 mph/GPS--but I'm thinking about moving to a stainless 13" pitch prop in the spring. I was frankly amazed at the difference the move from a 17P to a 15P made with this boat and motor combination. Common knowledge has it that a two inch change in pitch usually results in a 3-400 rpm change, but the difference was much more dramatic in my case, I don't know why.
I look forward to hearing about your choice and the performance results if you go with that Yamaha 13P stainless prop. I've usually shy'd away from stainless props because I often fish right next to rocks, some exposed and some 'wash rocks' just below the surface, and I'd rather break or bend an aluminum prop than screw up the whole bottom end if I hit a rock with a stainless prop. On the other hand, I find myself using this little 15 foot skiff in different ways than I've used my earlier, larger Whalers, and I'm more interested in squeezing out as much performance as I can from this rig, so stainless is surely something to be considered. I'll be watching this thread with interest, and thanks in advance for as much information as you (and others) can provide.
Tony
Tohsgib posted 11-07-2008 10:34 AM ET (US)
Tom Clark can get you the same prop for about $100 or more less.
KeyRat posted 11-07-2008 02:24 PM ET (US)
Email sent to Tom.
elaelap posted 11-08-2008 12:37 PM ET (US)
Again, KeyRat, if you end up going with that prop, please post a performance report after you get everything dialed in. Thx,
Tony
KeyRat posted 11-12-2008 04:39 PM ET (US)
Hi Tony,
I'll be sure to post results but it may be a while as the boat is completely stripped except for the motor and side railings.
List of things left to do:
- fill old screw holes
- wash boat
- wetsand, compound and wax hull
- sand, strip and revarnish interior
- install new steering system
- install external fuel filter
- install tachometer
- install battery switch
- buy & install prop
- install new rubrail and bow light wire (maybe)
Gerrit
zotcha posted 11-12-2008 09:38 PM ET (US)
All that and no jack plate? KeyRat, you're missing the boat. Give TWC a shot at your final price on the prop that you decide, and you will be MADE! Take care, zot.
KeyRat posted 11-14-2008 01:48 PM ET (US)
Jackplate may be in my future but right now I'm concentrating on getting everything up and running. The wife wants to get out on the water before the new year and the way work is going, that may be a stretch.
zotcha posted 11-14-2008 09:52 PM ET (US)
And I hear the Stripas are abound...Life Sucks. zot.

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Author	Topic: SPORT 15, Yamaha F60, No Jack Plate
KeyRat	posted 11-05-2008 07:30 PM ET (US) What prop is recommended for a SPORT 15 with a Yamaha F60 four-cycle? Boat will be mainly used for touring and some water skiing. Aluminum or SS? I found a few other threads posing the same question but they all had jack plates. Thanks.
zotcha	posted 11-05-2008 08:28 PM ET (US) KeyRat, are you running the standard issue 10.25 X 13 Yamaha black powdercoated stainless steel provided by Yamaha? Seems pretty generic and may work for most applications without jack plate. Much lighter than the Turbo Hot Shot that I have been running since stock, but jack plate was added at time of repower. That prop should be putting you in the recommended area of 5-6000 rpms and fine at that. What are your findings? zotcha.
PMUCCIOLO	posted 11-06-2008 12:31 AM ET (US) This is the propeller I had on my 1997 Standard 15 with a Yamaha F60 EFI mounted on the transom. I did not have a jack plate and all four bolt holes were through the transom above the base of the splash well. There were no lag bolts. http://www.yamaha-motor.com/outboard/accessories/acscitemdetail/5/266/ 1103/8460/all/1/3969/0/detail.aspx The 10 1/2" X 13" Series "G" propeller was perfect for the boat. The engine achieved 6,000 RPM at WOT and the boat popped up on a plane well and ran smoothly at a cruise of about 3,800 RPM. The fuel economy was nothing short of incredible. The 60HP four stroke EFI engine (either Yamaha or Mercury) is ideal for the classic 15' Boston Whaler hull. The engine is light, smooth, quiet, smoke free, efficient and easy to maintain. Parts are readily available and inexpensive. My Yamaha parts connection is Andy Munao, Jr. at Shipyard Island Marine: andyjr@shipyardisland.com His knowledge of Yamaha engines is virtually encyclopedic and he's repowered a number of classic Boston Whalers with EFI four stroke Yamaha power. Feel free to email me directly pmucciolo@cfl.rr.com if you'd like photographs of our old 15 with the F60 EFI. Best of luck with a great boat and motor combination!
Lil Whaler Lover	posted 11-06-2008 07:36 AM ET (US) KeyRat, you have an ideal boat and motor combination. I have a F-60 Yamaha on a 15 Center Console. The motor is mounted up a couple of holes. It came with a 13" pitch Solas SS and would hit the the rev limiter with 2 aboard and trimming the motor all the way down. I changed to a 15" Solas SS and it is right for my application as I can occassionally hit the rev limiter fully trimmed out. If I was using the boat for skiing I would go with a 14" pitch Solas SS prop, as I believe the 13" would hit the rev limiter too easily. After all that is said, the height the motor is mounted at is very important to optimize performance. You do not need a jack plate to achieve the correct height. Other brands of props may have slightly different effective pitch on their props so it is better if you can try several props to determine the best for your application.
KeyRat	posted 11-06-2008 02:44 PM ET (US) Great input. Thanks everyone. I just sold the old motor (bad lower unit) which had been sitting inside the boat so now I can really start to get the boat going. The motor did not come with a prop so I'm starting from scratch with no baseline. It sounds like I may need to try a few props before I settle on the winner. Where should I start my search for a prop? Local so I can try a few or online? Stainless or Aluminum?
Tohsgib	posted 11-06-2008 03:11 PM ET (US) Stainless
Tom W Clark	posted 11-06-2008 04:26 PM ET (US) The Yamaha Series G propeller is the same thing as a Stiletto Triad. They are both made by Precision Propeller Inc.
KeyRat	posted 11-06-2008 04:34 PM ET (US) I was just quoted $376.92 for the Yamaha prop (10-1/2x13p) from a local Yamaha dealer. Is that a fair price?
elaelap	posted 11-06-2008 09:05 PM ET (US) KeyRat, I'm running the cheap Yamaha 10" diameter 15" pitch white aluminum prop on my new F60/1987 center console 15, with the motor mounted two holes up. When I bought the boat the motor had been propped with the same model but in 17" pitch, and I was barely getting five thousand turns out of the thing. The move to a 15" pitch prop helped substantially--I'm up around 5800 rpm and just over 40 mph/GPS--but I'm thinking about moving to a stainless 13" pitch prop in the spring. I was frankly amazed at the difference the move from a 17P to a 15P made with this boat and motor combination. Common knowledge has it that a two inch change in pitch usually results in a 3-400 rpm change, but the difference was much more dramatic in my case, I don't know why. I look forward to hearing about your choice and the performance results if you go with that Yamaha 13P stainless prop. I've usually shy'd away from stainless props because I often fish right next to rocks, some exposed and some 'wash rocks' just below the surface, and I'd rather break or bend an aluminum prop than screw up the whole bottom end if I hit a rock with a stainless prop. On the other hand, I find myself using this little 15 foot skiff in different ways than I've used my earlier, larger Whalers, and I'm more interested in squeezing out as much performance as I can from this rig, so stainless is surely something to be considered. I'll be watching this thread with interest, and thanks in advance for as much information as you (and others) can provide. Tony
Tohsgib	posted 11-07-2008 10:34 AM ET (US) Tom Clark can get you the same prop for about $100 or more less.
KeyRat	posted 11-07-2008 02:24 PM ET (US) Email sent to Tom.
elaelap	posted 11-08-2008 12:37 PM ET (US) Again, KeyRat, if you end up going with that prop, please post a performance report after you get everything dialed in. Thx, Tony
KeyRat	posted 11-12-2008 04:39 PM ET (US) Hi Tony, I'll be sure to post results but it may be a while as the boat is completely stripped except for the motor and side railings. List of things left to do: - fill old screw holes - wash boat - wetsand, compound and wax hull - sand, strip and revarnish interior - install new steering system - install external fuel filter - install tachometer - install battery switch - buy & install prop - install new rubrail and bow light wire (maybe) Gerrit
zotcha	posted 11-12-2008 09:38 PM ET (US) All that and no jack plate? KeyRat, you're missing the boat. Give TWC a shot at your final price on the prop that you decide, and you will be MADE! Take care, zot.
KeyRat	posted 11-14-2008 01:48 PM ET (US) Jackplate may be in my future but right now I'm concentrating on getting everything up and running. The wife wants to get out on the water before the new year and the way work is going, that may be a stretch.
zotcha	posted 11-14-2008 09:52 PM ET (US) And I hear the Stripas are abound...Life Sucks. zot.