Tag Archive: 3.5 hp outboard motor

Gold’s S4 – pics and videos of first tests

By Fin Gold

North Carolina

Fin lives next to the ocean, and he loves fishing in shallow water. He’s been fishing out of an 18 ft skiff, but being a big boat with a heavy motor, that skiff drafts 18″, which is less than optimal for shallow water, especially at low tide, when the risk of getting stranded increases. Fin and his family also didn’t like how their big skiff felt in choppy water, and how it reacted to other boats’ wakes. Fin ordered an S4 with the intention of having it replace his 18 ft skiff. After he and his wife tested their S4, they decided to sell their skiff. The S4 will also replaces their tandem kayak. Says Fin: –

The video where I slide it down the ramp is the very first time trying it out.
The young guy on the boat is my youngest son Adam. He is a student and he was excited beforehand. Then he loved testing it out.

The videos are all at less than 1/2 throttle as we follow the 3.5 hp Tohatsu engine break-in procedure.

The S4 also lets us explore all the coastal islands where previously we could only take a kayak.

One question​ we had was the best position for the engine tilt. It looks like it has 5 holes for tilt and it came in the center hole. Any advice for that?

Here are the first pictures and videos. All unedited happiness.


How much HP for my S4 skiff’s outboard motor?

This article summarizes research performed by Captain Larry Jarboe, as well as inputs from Wavewalk dealers and S4 clients. Its purpose is to answer a frequently asked question (FAQ) from prospecting clients, which is “What outboard motor should I choose for my S4?”

The answer is that the outboard motor you should choose for your S4 depends on two factors, which are

  1. How much power you need
  2. How important is the motor’s weight for you

And there is a trade-off between power and weight, namely that the more powerful the motor, the heavier it is, and the harder it could be to carry it.
In any case, the motor should be a 20″ log shaft (L) model, and not a 15″ short shaft (S) model.

2 HP outboards

Outboard motors in this class weigh around 30 lbs, which makes them fully portable even for a user who’s not very strong. A 2 HP motor can propel an S4 skiff with one person on board at speeds up 8 mph, even in choppy water. This speed would decrease as the boat is required to carry more passengers on board. S4 owners who tested such motors with their S4 skiff reported that the boat felt under powered, which means that they felt like going faster, but the motor lacked the powered required for this. For this reason 2 HP motors are not popular with S4 users. Another reason for their lack of popularity is the fact that being air cooled makes them noisier than water cooled motors.

3.5 HP outboards

Outboard motors in this class weigh around 40 lbs, which makes them still portable, but less so than 2 HP motors. A 3.5 HP motor can propel an S4 skiff with one person on board at speeds up 14 mph, even in choppy water, and it can propel the boat at 12 mph with three passengers on board in  moving water. This size motor is the most popular among S4 and W700 users, as it offers a good trade-off between power and weight for people who must lift the motor or carry it by hand over long distances.These motors are also less expensive than bigger ones.

6 HP outboards

Outboard motors in this class weigh around 60 lbs, which makes them portable only for very short distances, and not for everyone. A 6 HP motor can propel an S4 skiff with one person on board at speeds up 18 mph, and it can propel the boat at 14 mph with three passengers on board. 6 HP motors are the second most popular motors among S4 users.

8 HP outboards

Outboard motors in this class weigh around 80 lbs. At such weight, these motors can no longer be considered as portable, and the only reason to use them is the fact that they are offered with electric ignition, which eliminates the need to start them by pulling a cord. The S4 outfitted with an 8 HP motor performs well in choppy water, but it could feel over powered for an inexperienced driver, which should avoid using such motors with their S4. Heavy users may benefit from driving with a U-jointed tiller extension, in order to move some weight forward from the stern to the middle of the boat.

6.5 HP mud motors

Mud motors are bulkier and heavier than regular outboard motors. A 6.5 HP mud motor weighs around 80 lbs, and it’s not portable. The reasons you’d want to use such a motor instead of a regular outboard of similar power are if you need to go in very shallow water (skinny water) and mud, and if you fish or hunt in water with plenty of vegetation and underwater obstacles. The S4 performs very well with a such a mud motor. We do not recommend using less powerful mud motors because typically, these motors require more power than regular outboard motors do.

Electric outboard motors

Some electric trolling motors are described by their manufacturer as “outboard motors”, namely comparable in power to small outboard gas engines. If you consider such electric motors, we recommend remembering the laws of physics, and applying the formulae for Kilowatts to Horsepower conversion, which are:

  • 1 KW = 1.34 HP
  • 1 HP = 0.745 KW

 

 

 

 

 

 

Touring and diving with the Wavewalk S4x3 multi boat – skiff

By Captain Larry Jarboe

Florida Fishing Kayaks

Carlene, my wife is the camera lady.
Amy, Rebecca, and Calypso are the phenomenally photogenic crew.

The S4x3 performs very well, underway and at anchor.
We swam with the regular contingent of Caribbean fish but a nurse shark and an albino manatee cruised through the snorkeling quartet of mermaids too.

And, we motored with a family of dolphins who had to check out the new gray and white critter on the surface.

It is so wonderful to be surrounded by beautiful happy women.

 

 

 

 

 


 

Larry offers guided fishing and diving trips in the Key Largo and the areas that surround it »

More fishing adventures with Capn’ Larry »

Wavewalk S4x3 multi boat for leisure & adventure

By Captain Larry Jarboe

Florida Fishing Kayaks

A motorized Wavewalk S4 towing two S4 kayaks (non-motorized)

 

 


 

 

Larry offers guided fishing and diving trips in the Key Largo and the areas that surround it »

More fishing adventures with Capn’ Larry »

 

Two Wavewalk S4 skiffs motorizing in the ocean and in the mangroves

By Captain Larry Jarboe

Florida Fishing Kayaks

Yesterday, I did a delightful “Wavewalk Wednesday” motorized demo w/ 2 super nice people from Georgia, John and Peni.

Two boats, with two people in each one, each boat had a 3.5 hp outboard, operating through extremely tight creeks and choppy open ocean, and no concern with tipping.

We plunged through the mangrove forest, stopped at the only natural sand beach on the Atlantic in Key Largo, circumnavigated Rattlesnake Key and, both boats ran out of fuel on the way home.

But, I had more on board.

We had a great afternoon.

 

 

 

 

 


Larry offers guided fishing and diving trips in the Key Largo and the areas that surround it »

More fishing adventures with Capn’ Larry »