The inboard has a servo-cone clutch with a choice of 2.21:1, 2.62:1 and 3.22:1 forward ratios, plus 3.06:1 in reverse. This engine is available as a standard inboard, or with Yanmar’s double-seal saildrive unit. Maintenance has been simplified, with the water pump, fuel filter, oil change and dip stick located on the same side of the engine, at the front. To meet heavier electrical demands, an 80-amp alternator is offered as an option. A compact control panel, injection pump, electric stop solenoid and 60-amp alternator are introduced as standard. With indirect injection and a swirl pre-combustion chamber, this all-new unit complies with EPA Tier 2 and BSO/SAV Stage 2 emissions regulations. It is a vertical four-stroke, fresh water cooled. The naturally aspirated 3YM20 features a completely redesigned cylinder block and combustion system, configured for quietest possible, vibration-free running. The latest in a series of new-generation compact diesels from Yanmar Marine is its three-cylinder 3YM20, developing 21HP (15.3kW) at 3,600 rpm.
Runs and runs, smoothly, quietly and cleanly. Built for optimum power to weight and rugged durability.
GM Series 1GM10E (9HP/7kW) Lightweight single-cylinder auxiliary diesel with a straight drive. This is the latest technology for quiet, smooth power at the lowest possible weight. The all-new YM Series has been introduced, with the arrival of the 3YM20 15.3 kW (21HP) and 3YM30 21kW (29HP) three-cylinder engines. YM & GM Series 7–21kW (9–29HP) Famed for their reliability, the GM Series diesels – single and two cylinder – feature pre-combustion chamber indirect injection.
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