Selecting An Outboard Motor

Selecting An Outboard Motor

30 years ago American manufacturers dominated the outboard motor market.Names equivalent to Mercury, Johnson, Evinrude and Chrysler, led the field competing with one another to produce bigger and better outboard engines. Nevertheless, while this was occurring they were neglecting the smallest of the outboards. These are the outboard motors that sell within the greatest of numbers and are sometimes the primary outboard many people, buy. This being the case many people stick to the same brand (model 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 effectivity and reliability. As well as adding options to these small outboards previously only found on bigger engines.

Having achieved success in the small outboard market, these Japanese manufacturers expanded up the ability range. They again came to dominate the outboard engine market as much as at the very least 20 hp. The American producers 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 perfect features of the current engines and at the similar time keeping costs down.

So let us examine the outboards which can be on offer for those on the lookout for an outboard motor for their dinghy. If we take a reasonably bigger dinghy say, a Pioner 12, so that each outboard has to push a reasonably heavy weight by way of 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 due to an E.U. Directive that stops 2 strokes from being sold in the E.U. These outboards will provide a fairly wide range of engines available available on the market, for powering dinghies.

To guage one engine against the another a number of tests were completed. A Bollard pull test showed that the Mercury 3.5hp and Tohatsu 3.5hp had been probably the most highly effective at 90lbs of thrust (These engines along with the Mariner are virtually identical). The least effective 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.

Next test was Fuel Consumption. At full speed - 5.seventy five knots, the perfect outboards had been the Yamaha 2.5hp and the Suzuki 2.5hp by at the very least 20%. The worst was the Parsun 2.6hp. When the throttles have been eased and the dinghy was cruising the Fuel Consumption comparability was less evident, only about 10% difference. All these figures are for 4 stroke engines. Nevertheless, primarily based on figures previously recorded for 2 strokes under similar circumstances, the older engines have been up to 50% less fuel environment friendly 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. 4 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 is virtually identical the identical engine as within the Yamaha 2.5hp, it isn't 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 like the Japanese did before them, however they haven't got it right, yet!

Finally just a little about every outboard tested. The Mercury, Mariner and Tohatsu are the same engine. Beginning settings for the throttle are easy to understand with the choke and stop button clearly labelled. The petrol on/off tap isn't so clearly marked. All these motors have gears. Ahead and impartial then using the 360 degree rotation you will 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 also had easily understood starting and stopping settings however the oil level 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 however 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 just isn't water cooled like all the opposite outboards tested. It's aircooled and has no gears. Instead it makes use of a centrifugal clutch. This makes beginning and maneuvering more tough than the others. It simply 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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