Yanmar 1GM10 Operation Manual

Also see for 1GM10: Shop Manual Shop Manual User manual Operation manual Operation manual

Contents

Yanmar 1GM10 Operation Manual Manual pdf 72 page image

TROUBLESHOOTING66 GM Series Operation ManualIs there water, oil or fuel leakage?Are there any loose bolts orconnections?Check the engine room daily for any leaksor loose connections.Is there sufficient fuel in the fuel tank?Refill fuel in advance to avoid running outof fuel. If the tank runs out of fuel, bleedthe fuel system. See Air Bleeding from theFuel System After Starting Failure onpage 41.When operating the engine at low speedfor long periods of time, race the engineonce every 2 hours. Racing the enginewith the clutch in NEUTRAL, acceleratefrom the low-speed position to thehigh-speed position and repeat thisprocess about five times. This is done toclean out carbon from the cylinders andthe fuel injection valves.NOTICENeglecting to race the engine will result inpoor smoke color and reduce engineperformance.Periodically operate the engine nearmaximum speed while underway. This willgenerate higher exhaust temperatures,which will help clean out hard carbondeposits, maintain engine performanceand prolong the life of the engine.TROUBLESHOOTINGINFORMATIONIf the engine does not operate properly,refer to the Troubleshooting Chart on page67 or consult authorized Yanmar Marinedealer or distributor.Supply the authorized Yanmar Marinedealer or distributor with the followinginformation:• Model name and serial number of yourengine• Boat model, hull material, size (tons)• Use, type of boating, number of hoursrun• Total number of operation hours (refer tohourmeter), age of boat• The operating conditions when theproblem occurs:• Engine speed (min-1 )• Smoke color• Type of diesel fuel• Type of engine oil• Any abnormal noises or vibration• Operating environment such as highaltitude or extreme ambienttemperatures, etc.• Engine maintenance history andprevious problems• Other factors that contribute to theproblem