15C 20C MFS - Tohatsu

34 ENGINE OPERATION64. Warming up the engineWarm the engine at low enginespeeds for about three minutes. Thisallows the lubricating oil to circulate toall parts of the engine. Operating theengine without warm up shortens theengine's life.Be sure to check that cooling water iscoming out of the cooling water checkport during warm up.! CAUTIONIf the engine is operated without waterdischarging from the check port, theengine may over heat.Engine speedsIdling speed after warming up.Remark: In case of cold enginestarting, idling speed is increasedabout 300 rpm for several minutes.Clutch in (In gear)900rpmClutch off (Out of gear)950rpmPROPELLER SELECTIONPropeller must be selected thatw i l l a l l o w t h e e n g i n e t o re a c hrecommended rpm when cruising atwide-open throttle.Wide-open throttle rpm range15 205,0006,000rpm5,4006,100rpmGenuine propellers are listed onPROPELLER TABLE of this manual.Cooling watercheck port! CAUTIONBe sure to stop engine immediatelyif cooling water check port is notdischarging water, and check if coolingwater intake is blocked. Operatingengine could lead to overheatingpotentially leading to engine damage.Consult an authorized dealer if thecause cannot be found.