CONTINUOUSWAVE

Q1: Do you have to lower the engine in turns? Q2: Have you done any modifications to the hull to make it more stable? Q3: What propeller are you running? I also own a 1985 SPORT 15; it has a 2014 Yamaha F70. Boat speed at full throttle is 43-MPH. The engine is two-holes-up. The propeller is a PowerT...

I own a 1986 15’ Sport. I mounted a bimini but didn’t drill into the gunwales. I used a ball mount on the middle side rail vertical supports. It works great. I did have to drill for the strap mounts but not the base.
This may sound confusing so I’ll take some photos.

biggiefl wrote:Congrats! That is the best performance I think I have seen on a classic 15 with a F70.

Thanks Biggiefl. I’m satisfied.

El Rollo wrote:Sounds like you've got that boat dialed in very well.

Thanks El Rollo. You’re right, I’m very pleased with the SCD3 17-pitch. I couldn’t have had a professional propeller technician dial-in the propeller more perfectly than it is now.

I finally got the opportunity to go run my 1985 15 Sport with Yamaha F70 while alone in the boat. Here are the particulars: ⋅ 2014 Yamaha F70 mounted two-holes-up ⋅ PowerTech SCD3 in 13.25 x 17 ⋅ 9-gallons fuel, life jackets, a battery, a light tool box, mushroom anchor...

In addition to my 1985 15’ Whaler Sport, I own a 38’ Morgan sailboat with two bilge pumps. I used to buy the Rule caged switches, but I would replace them at least once a year because they would fail. I tried the Sure Bail caged switch about four years ago, and I haven’t replaced it yet. The Sure Ba...

I spent 38 years in the pipeline industry. We cut stainless tubing daily with tubing cutters. You won’t have a problem with a tubing cutter from Lowe’s or Home Depot.

I decided to replace the three transom drain tubes on my 1985 15’ Sport after reading all of the posts about drain tubes. I thought since my boat is in such good shape that the drain tubes would probably be okay. I was wrong and I am glad I replaced them. The two upper tubes on the splash well were ...

Great information--Thank you

This past weekend, my adult daughter and I took my 1985 15’ Sport with Yamaha F70 out for a ride. At the beginning of summer I installed a PowerTech SCD3 13.35” x 17” prop but hadn’t truly tested it. My motor is mounted 2 holes up. We had about 8 gallons of gas, light gear, 325 in crew (me 200, her ...

[My Yamaha F70 engine accelerates to] 6,000 RPM with the SCD3 13.25 x 17. My boat is a 1985 15 Sport with a 2014 Yamaha F70. Boat speed is 42-MPH with a light load of two adults, 9/gallons of fuel, and some light gear. My motor is mounted two-holes-up.

The wiring to the bow in my 1985 15 Sport runs behind the rub rail.

El Rollo: I ended up purchasing a SCD3 in 17-pitch, but haven’t been able to test it yet. My wife and I took a ride but she gets nervous when the boat gets over about 35-MPH . My engine is mounted at two-holes-up. I think I need to raise the engine one more hole. I’ll post again after further testing.

Phil: I contacted Ken with Propgods and he recommended the PowerTech SCD4 in 16-pitch. Thank you [and thank you EL ROLLO]

I was surprised he didn’t have a bimini top to protect himself from the sun. If it had been me, I would have been as red as a boiled crawfish by the second day.

Thanks Phil

EL ROLLO: what propeller did you choose for your SPORT 15? I have the same boat (1985 15’ Sport) and engine (Yamaha F70) but without the jack plate, the trolling motor, and the extra batteries. I have been considering a four-blade. Most of my running is in the 4000 to 4500-RPM range and top-end spee...

If worried about the weight, consider the Yamaha F70 which is 253-lbs. An increase of 100-lbs is a lot for only an additional 5-HP.

I have a 1985 Sport 15 with a Yamaha F70. 18B8F469-17ED-4606-91A3-FAD41A6C8860.jpeg [A SPORT 15 and a Yamaha F70] feels like the perfect match to me. [The SPORT 15] jumps up on step quickly and wide open boat speed is about 43-MPH. I have both a nine-gallon Moeller fuel tank and a starting battery i...

I purchased a center cap from an on-line auction website for $30 that seems to be high quality.

I’m almost finished with my restoration and am pretty anxious. I found something that will work for me so you can take my name off the list. Thanks anyway.

Recently I replaced the rub rail on my 1985 Sport 15. The job was not bad. The rub rail was about $260 from Specialty Marine and fits 13 through 17 classic hulls. I’m not sure how you would splice it and not have an obvious repair showing. Good luck

I would like one too.

You could also use a rivet nut. Check on Amazon. You can get a rivet nut in stainless steel.

I own a 1985 15’ Sport with a Yamaha F70 four stroke. When I see people at gas stations and at landings, I always get comments such as “that boat must fly with a 70.” I respond that it is rated for 70 HP. For the record, I am running a Stiletto 13-1/4” x 17” prop with the motor mounted 3 holes up. B...

That’s good information but when I look it up, the blue label is Cleaner Wax. The green label is the Restorer Wax. Are you using the cleaner wax?

My 1985 15’ Sport is Desert Tan. I bought some of the Spectrum gel coat and it was a perfect match both inside and out.
I would your Montauk is the same color.

[Revives this thread after it has been dormant for two years and seven months] I would like to paint the non-skid on my 1985 Sport 15, and I’m hoping the Awlgrip Desert Sand is a close enough match. I see they have the color in multiple products. Have any readers of this thread tried the Awlgrip Des...