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Choosing An Outboard Motor

Choosing An Outboard Motor

30 years ago American manufacturers dominated the outboard motor market.Names corresponding to Mercury, Johnson, Evinrude and Chrysler, led the field competing with one another to produce bigger and better outboard engines. Nonetheless, while this was happening they were neglecting the smallest of the outboards. These are the outboard motors that sell in the greatest of numbers and are sometimes the primary outboard many people, buy. This being the case many of us follow the same brand (model loyalty) as we purchase different bigger outboards over the years. The Japanese seized on this truth and gradually Honda, Yamaha, Suzuki and Tohatsu concentrating on small outboards started to take over as market leaders. They achieved this domination by improving effectivity and reliability. As well as adding features to those small outboards beforehand only found on bigger engines.

Having achieved success in the small outboard market, these Japanese producers expanded up the facility range. They again got here to dominate the outboard engine market as much as at least 20 hp. The American manufacturers instead of competing with the Japanese, gave up and decided to purchase these engines from the Japanese and badge them as their own. Now the Chinese have entered the market. Basically doing what the Japanese did previously, copying the best options of the current engines and on the identical time keeping costs down.

So allow us to examine the outboards which are on offer for these looking for an outboard motor for his or her dinghy. If we take a fairly larger dinghy say, a Pioner 12, so that every outboard has to push a reasonably heavy weight through the water. If we then take the next 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 because of an E.U. Directive that prevents 2 strokes from being sold within the E.U. These outboards will provide a reasonably wide range of engines available available on the market, for powering dinghies.

To guage 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 were the most highly effective at 90lbs of thrust (These engines together with the Mariner are virtually identical). The least efficient was the Honda 2.3hp at 66lbs of thrust. In between had 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 pace - 5.seventy five knots, the very best outboards had been 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. Nonetheless, based on figures beforehand recorded for 2 strokes under similar circumstances, the older engines were up to 50% less fuel efficient at full speed. Very thirsty! Keep in mind 2 stroke outboards are nonetheless available second hand.

Then the weight of each 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 - forty one lbs (18 kg.). Nonetheless, 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 is virtually equivalent the identical engine as within the Yamaha 2.5hp, it's not as good. It is 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 copy, just like the Japanese did before them, however they have not bought it right, yet!

Finally a bit of about every outboard tested. The Mercury, Mariner and Tohatsu are the same engine. Beginning settings for the throttle are straightforward to understand with the choke and cease button clearly labelled. The petrol on/off faucet shouldn't be so clearly marked. All these motors have gears. Ahead and neutral then utilizing the 360 degree rotation you can get astern thrust. There are four tilt positions and a shallow water ability. Oil ranges will be easily checked by viewing the indicator on the side of the engine cover.

The Yamaha 2.5hp also had simply understood starting and stopping settings however 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 on the propeller, so no shear pin to break.

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

The Honda 2.3hp will not be water cooled like all the opposite outboards tested. It is aircooled and has no gears. Instead it makes use of a centrifugal clutch. This makes beginning and maneuvering more troublesome than the others. It simply takes a little bit of getting used to it. The oil gauge is out of sight under the cover. The propeller has a shear pin with spares kept under the engine cover.

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