MARINE ENGINES
94Pages

YANMMH PERATION MANUAL

/ > California Proposition 65 Warning Diesel engine exhaust and some of its constituents are known to the state of California to cause cancer, birth defects, and other reproductive harm. \_._ California Proposition 65 Warning Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the state of California to cause cancer and reproductive harm. Wash hands after handling. \____/ Disclaimers: All information, illustrations and specifications in this manual are based on the latest information available at the time of publishing. The illustrations...

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Welcome to the world of Yanmar Marine! Yanmar Marine offers engines, drive systems and accessories for all types of boats, from runabouts to sailboats, and from cruisers to mega yachts. In marine leisure boating, the worldwide reputation of Yanmar Marine is second to none. We design our engines to respect nature. This means quieter engines, with minimal vibrations, cleaner than ever. All of our engines meet applicable regulations, including emissions, at the time of manufacture. To help you enjoy your Yanmar GM series engine for many years to come, please follow these recommendations: •...

RECORD OF OWNERSHIP Take a few moments to record the information you need when you consult Yanmar for service, parts or documentation. Engine Model: Engine Serial No.: Date Purchased: Dealer: Dealer Phone: 2 GM Series Operation Manual lWllllllJlJll

Yanmar considers safety of great importance and recommends that anyone that comes into close contact with its products, such as those who install, operate, maintain or service Yanmar products, exercise care, common sense and comply with the safety information in this manual and on the machine’s safety decals. Keep the labels from becoming dirty or torn and replace them if they are lost or damaged. Also, if you need to replace a part that has a label attached to it, make sure you order the new part and label at the same time. This safety alert symbol appears with most safety statements. It...

SAFETY PRECAUTIONS General Information There is no substitute for common sense and careful practices. Improper practices or carelessness can cause burns, cuts, mutilation, asphyxiation, other bodily injury or death. This information contains general safety precautions and guidelines that must be followed to reduce risk to personal safety. Special safety precautions are listed in specific procedures. Read and understand all of the safety precautions before operation or performing repairs or maintenance. The safety messages that follow have DANGER level hazards. Never permit anyone to install...

Sever Hazard Rotating parts can cause severe injury or death. Never wear jewelry, unbuttoned cuffs, ties or loose-fitting clothing and always tie long hair back when working near moving / rotating parts such as the flywheel or PTO shaft. Keep hands, feet and tools away from all moving parts. Exhaust Hazard Never block windows, vents ^ . or other means of ventilation if the engine is operating in an enclosed area. All internal combustion engines create carbon monoxide gas during operation and special precautions are required to avoid carbon monoxide poisoning. Never operate the engine while...

A CAUTION The safety messages that follow have The safety messages that follow have CAUTION level hazards. NOTICE level hazards. Always be environmentally responsible. Poor Lighting Hazard Ensure that the work area is adequately illuminated. Always install wire cages on portable safety lamps. Always use tools appropriate for the task at hand and use the correct size tool for loosening or tightening machine parts. Flying Object Hazard Always wear eye protection when servicing the engine or when using compressed air or high-pressure water. Dust, flying debris, compressed air, pressurized...

If you have an installation with two or three engines and only one engine is operating, the water pickup (thru-hull) of the non-running engine(s) should be closed. This will prevent water from being forced past the seawater pump and eventually finding its way into the engine. The result of water entering the engine could cause seizure or other serious problems. If you have an installation with two or three engines, and only one engine is operating, please note that if the propeller shaft thru-hull (stuffing box) is lubricated by engine water pressure and the engines are interconnected, care...

LOCATION OF SAFETY DECALS Figure 1 show the location of safety decals on Yanmar GM series marine engines. GM Engines 8 GM Series Operation Manual lWllllllJlJll

YANMAR GM FEATURES AND APPLICATIONS The GM series are four-stroke swirl pre-combustion chamber diesel engines equipped with direct seawater cooling systems. The 1GM10 is a naturally aspirated 1-cylinder engine equipped with a KM2P marine gear. The 1GM10C is a naturally aspirated 1-cylinder engine equipped with an SD20 sail-drive. The 1GM10V is a naturally aspirated 1-cylinder engine equipped with a KM3V marine gear. The engines are equipped with a marine gear or sail-drive unit. These engines are designed for pleasure craft use. It is recommended that new vessels be propped so the engines...

New Engine Break-In As with all reciprocating engines, the way your engine is operated during its first 50 hours of operation plays a very significant role in determining how long it will last and how well the engine will perform over its lifetime. A new Yanmar diesel engine must be operated at suitable speeds and power settings during the break-in period to allow bearing surfaces and other friction-related components, such as piston rings and valve guides, to wear in properly in order to stabilize engine lubrication and combustion. During the break-in period, carefully observe the engine...