Yamaha 6c Owner's Manual

Also see for 6c: Owner's manual Owner's manual Owner's manual

Contents

Maintenance47erosion becomes excessive, or if carbon andother deposits are excessive, you should re-place the spark plug with another of the cor-rect type.1. Remove the spark plug caps from thespark plugs.2. Remove the spark plug. If electrode ero-sion becomes excessive, or if carbonand other deposits are excessive, youshould replace the spark plug with an-other of the correct type. WARNING!When removing or installing a sparkplug, be careful not to damage the in-sulator. A damaged insulator couldallow external sparks, which couldlead to explosion or fire. [EWM00561]3. Be sure to use the specified spark plug,otherwise the engine may not operateproperly. Before fitting the spark plug,measure the electrode gap with a wirethickness gauge; adjust the gap to spec-ification if necessary.4. When fitting the plug, wipe off any dirtfrom the threads, and then screw it in tothe correct torque.TIP:If a torque-wrench is not available when youare fitting a spark plug, a good estimate ofthe correct torque is 1/4 to 1/2 a turn past fin-ger-tight. Have the spark plug adjusted to thecorrect torque as soon as possible with atorque-wrench.EMU28990Checking fuel filterCheck the fuel filter periodically. The fuel fil-ter is a one piece, disposable type. If foreignmatter is found in the filter, replace it. For re-placement of the fuel filter, consult yourYamaha dealer.EMU29041Inspecting idling speedWARNINGEWM00451● Do not touch or remove electrical partswhen starting or during operation.● Keep hands, hair, and clothes awayfrom the flywheel and other rotatingStandard spark plug:BR7HS-101. Spark plug gap2. Spark plug I.D. mark (NGK)3. Spark plug part numberSpark plug gap:0.9–1.0 mm (0.035–0.039 in)Spark plug torque:25.0 Nm (2.55 kgf-m, 18.4 ft-lb)ZMU02874