Mercury 3.3 Outboard Motor 2 Cycle 3.4hp on 2040-parts.com

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Made in Japan, the Mercury 3.3 outboard motor develops 3.4hp at 5000rpm from its 74.6cc, loop-charged, single-cylinder powerhead, with a wide open throttle rpm range of 4500-5500. The Mercury 3.3 hp outboard fuel mixture of normal 50:1 premix means the engine’s single piston ring would last very well, and the fixed ignition timing works well above a two-thirds throttle opening.

The Mercury 3.3 engine’s OEDA zero-star emissions rating does mean it’s pretty dirty, but considering the small amount of fuel it uses, that might not be such a consideration.

The deep 2.15:1 gear ratio improves thrust efficiency at displacement speeds using the standard 5.7in pitch plastic weedless prop. The Mercury 3.3 hp outboard weight of 13kg (dry weight) is made even more attractive by the addition of a large carry handle. There are four trim positions, a full-tilt locking knob and a reasonably large 1.4L fuel tank that gravity feeds to the single-jet carbie.

Given the upper cowl completely unclips from the lower, with a separate spark-plug hatch fitted, maintaining the 3.3 is nice and easy.

ON THE WATER

With a clutch that eliminates the joy of crashing into other boats when the engine fires up, starting the Mercury 3.3 two-stroke could be called ridiculously easy. The engine does shake around while warming up in neutral, but once forward gear is engaged the vibration transfers to your tiller arm, saving your precious boating investment.