Choosing An Outboard Motor

Choosing An Outboard Motor

30 years ago American manufacturers dominated the outboard motor market.Names such as Mercury, Johnson, Evinrude and Chrysler, led the sphere competing with one another to produce bigger and higher outboard engines. However, while this was happening they have been neglecting the smallest of the outboards. These are the outboard motors that sell in the greatest of numbers and are sometimes the first outboard many people, buy. This being the case many of us persist with the identical brand (brand loyalty) as we buy different bigger outboards over the years. The Japanese seized on this fact and gradually Honda, Yamaha, Suzuki and Tohatsu concentrating on small outboards began to take over as market leaders. They achieved this domination by improving effectivity and reliability. As well as adding features to those small outboards previously only discovered on larger engines.

Having achieved success within the small outboard market, these Japanese manufacturers expanded up the power range. They once more got here to dominate the outboard engine market up to a minimum of 20 hp. The American producers instead of competing with the Japanese, gave up and determined 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 most effective features of the present engines and on the similar time keeping prices down.

So allow us to evaluate the outboards which are on provide for those looking for an outboard motor for his or her dinghy. If we take a reasonably larger dinghy say, a Pioner 12, so that every outboard has to push a reasonably heavy weight by 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 stops 2 strokes from being sold within the E.U. These outboards will provide a fairly wide range of engines available in the marketplace, for powering dinghies.

To judge one engine against the another several tests were completed. A Bollard pull test showed that the Mercury 3.5hp and Tohatsu 3.5hp were essentially the most highly effective at 90lbs of thrust (These engines together with the Mariner are virtually identical). The least effective 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.

Next test was Fuel Consumption. At full speed - 5.seventy five knots, the best outboards had been the Yamaha 2.5hp and the Suzuki 2.5hp by not less than 20%. The worst was the Parsun 2.6hp. When the throttles were eased and the dinghy was cruising the Fuel Consumption comparability was less evident, only about 10% difference. All these figures are for four stroke engines. Nevertheless, based mostly on figures beforehand recorded for 2 strokes under related circumstances, the older engines have been up to 50% less fuel efficient at full speed. Very thirsty! Keep in mind 2 stroke outboards are nonetheless available second hand.

Then the load 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.). Nevertheless, the Honda 2.3hp and Suzuki 2.5hp weighed lots less at 28 lbs (12.5 kg.).

Though the Parsun was the cheapest and it is virtually identical the identical engine as in the Yamaha 2.5hp, it's not as good. It's a bit like me following a Gordon Ramsay recipe, to the letter, but 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 just like the Japanese did before them, however they have not got it right, 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 stop button clearly labelled. The petrol on/off faucet shouldn't be so clearly marked. All these motors have gears. Ahead and impartial then using the 360 degree rotation you may get astern thrust. There are 4 tilt positions and a shallow water ability. Oil ranges might be easily checked by viewing the indicator on the side of the engine cover.

The Yamaha 2.5hp additionally had simply understood beginning 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 at the propeller, so no shear pin to break.

The Suzuki 2.5hp is as above but with the oil gauge simply considered 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 opposite outboards tested. It is aircooled and has no gears. Instead it makes use of a centrifugal clutch. This makes starting and maneuvering more difficult 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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