Selecting An Outboard Motor

Selecting An Outboard Motor

30 years ago American manufacturers dominated the outboard motor market.Names similar to Mercury, Johnson, Evinrude and Chrysler, led the sector competing with each other to produce bigger and higher outboard engines. Nonetheless, while this was occurring they have been neglecting the smallest of the outboards. These are the outboard motors that sell in the greatest of numbers and are often the primary outboard many of us, buy. This being the case many of us stick to the identical brand (brand loyalty) as we purchase other bigger outboards over the years. The Japanese seized on this reality and gradually Honda, Yamaha, Suzuki and Tohatsu concentrating on small outboards started to take over as market leaders. They achieved this domination by improving efficiency and reliability. As well as adding options to those small outboards previously only discovered on larger engines.

Having achieved success in the small outboard market, these Japanese producers expanded up the facility range. They again came to dominate the outboard engine market as much as not less than 20 hp. The American manufacturers instead of competing with the Japanese, gave up and decided to buy these engines from the Japanese and badge them as their own. Now the Chinese have entered the market. Basically doing what the Japanese did beforehand, copying the very best options of the current engines and at the identical time keeping costs down.

So allow us to examine the outboards that are on provide for those looking for an outboard motor for their dinghy. If we take a fairly larger dinghy say, a Pioner 12, so that each outboard has to push a reasonably heavy weight via the water. If we then take the following outboard motors :

Mercury 2.5hp; Mercury 3.5hp; Mariner 2.5hp; Tohatsu 3.5hp; Yamaha 2.5hp; Suzuki 2.5hp; Honda 2.3hp; and a Parsun 2.6hp. All these outboards are 4 stroke engines. This is due to an E.U. Directive that stops 2 strokes from being sold within the E.U. These outboards will provide a fairly wide range of engines available available on the market, for powering dinghies.

To evaluate one engine in opposition to the another a number of tests have been completed. A Bollard pull test showed that the Mercury 3.5hp and Tohatsu 3.5hp had been the most powerful at 90lbs of thrust (These two engines along with the Mariner are virtually equivalent). The least efficient was the Honda 2.3hp at 66lbs of thrust. In between have been the Suzuki 2.5hp at 83lbs of thrust, the Yamaha 2.5hp at 78lbs of thrust and the Parsun 2.6hp at 70 lbs of thrust.

Subsequent test was Fuel Consumption. At full velocity - 5.seventy five knots, the very best outboards were the Yamaha 2.5hp and the Suzuki 2.5hp by at least 20%. The worst was the Parsun 2.6hp. When the throttles have been eased and the dinghy was cruising the Fuel Consumption comparison was less evident, only about 10% difference. All these figures are for 4 stroke engines. However, based mostly on figures beforehand recorded for two strokes under similar circumstances, the older engines were as much as 50% less fuel environment friendly at full speed. Very thirsty! Bear in mind 2 stroke outboards are still available second hand.

Then the weight of every outboard motor was compared. Four stroke engines are heavier than older 2 strokes because of the powerhead etc. The Mercury, Mariner, Tohatsu, Yamaha and Parsun all weighed approx. 38 - 41 lbs (18 kg.). However, the Honda 2.3hp and Suzuki 2.5hp weighed a lot less at 28 lbs (12.5 kg.).

Although the Parsun was the cheapest and it's virtually similar the identical engine as in the Yamaha 2.5hp, it isn't as good. It's a bit like me following a Gordon Ramsay recipe, to the letter, however when compared side by side you just know that his is going to be that a lot better. The Chinese are able to repeat, just like the Japanese did before them, but they have not bought it proper, but!

Finally just a little about every outboard tested. The Mercury, Mariner and Tohatsu are the identical engine. Beginning settings for the throttle are simple to understand with the choke and cease button clearly labelled. The petrol on/off tap is just not so clearly marked. All these motors have gears. Ahead and impartial then utilizing the 360 degree rotation you may get astern thrust. There are 4 tilt positions and a shallow water ability. Oil ranges might be simply checked by viewing the indicator on the side of the engine cover.

The Yamaha 2.5hp additionally had simply understood starting and stopping settings but the oil stage gauge was out of sight under the engine casing cover. As with the Mercury outboard the Yamaha 2.5hp has gears, ahead and neutral with 360 degree rotation. Not like the Mercury which has a shear pin, the Yamaha has a rubber hub at the propeller, so no shear pin to break.

The Suzuki 2.5hp is as above but with the oil gauge simply seen at the side of the cover. The propeller has a shear pin with spares stowed under the engine cover.

The Honda 2.3hp is not water cooled like all the other outboards tested. It is aircooled and has no gears. Instead it uses a centrifugal clutch. This makes beginning and maneuvering more tough than the others. It merely takes a bit of getting used to it. The oil gauge is out of sight under the cover. The propeller has a shear pin with spares stored under the engine cover.

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