9. Check the rubber hose(Figure 12, (1)) connecting the coolantrecovery tank to the coolant tank / heatexchanger. Replace if damaged.NOTICE: If the coolant runs low toooften or only the coolant level in thecoolant tank / heat exchanger dropswithout any change in the level in thecoolant recovery tank, there may becoolant or air leaks in the coolingsystem. See your authorized YanmarMarine dealer or distributor.CRANKING THE ENGINENOTICE: When performing enginebreak-in or if the engine has not beenused for a long period of time, engine oilwill not be distributed to all of theoperating parts. Using the engine in thiscondition will lead to seizure.After a long period of non-use, distributeengine oil to each part by cranking theengine. Perform the following procedurebefore beginning operation:1. Open the seacock.2. Open the fuel cock.3. Put the remote control shift lever inNEUTRAL.4. Turn the battery switch to ON (ifequipped).0003622(1) (2) (3)(4)Figure 131 – GLOW2 – OFF3 – ON4 – STARTNote: If the engine has not beenoperated for a long period of time,check that the key moves smoothlyfrom the START to ON positions.5. Turn the key to ON (Figure 13, (3)).BEFORE YOU OPERATE32 YM Series Operation Manual© 2007 Yanmar Marine International