Service Side - 3YM20Figure 3 and Figure 4 illustrate a typicalversion of a 3YM20 engine. Your enginemay have different equipment from thatillustrated.(1) (2)(3)(4)(5)(6)(7)(8)(9) 0004783Figure 31 – Intake Silencer (Air Cleaner)2 – Intake Manifold3 – Fuel Filter4 – Fuel Injection Pump5 – Engine Oil Dipstick6 – Engine Oil Filler Cap7 – Fuel Feed Pump8 – Engine Oil Filter9 – Marine GearNon-Service Side - 3YM20(1)(2) (3)(4)(5)(6)(7)(8)0004784Figure 41 – Seawater Pump2 – Coolant Filler Cap3 – Engine Nameplate (On Rocker ArmCover)4 – Coolant Tank / Heat Exchanger5 – Exhaust Manifold6 – Starter Motor7 – Shift Lever8 – AlternatorPRODUCT OVERVIEW12 YM Series Operation Manual© 2007 Yanmar Marine International
