I needed gap setting for a hnda over head cam gcv 160 5.5 h/p [valves setting ]

SOURCE: Valve Timing and Head Tension

line the second mark on the flywheel up in the hole on the left cover that is top dead center, that tensioner i believe you have to prewind to bring it back take the bolt out and use a small screw driver and wind it back in and leave it in there untill you put the cam back in and bolt it down. make sure you use caution when removing the bollt from the tensioner it is spring loaded. the cam sprocket has lines or dots they will need to line those up with the gasket surface make sure there is no press on the valves that will be top dead center comp

SOURCE: Honda CRF 100 timing

Turn the motor over clockwise until the punch mark on the gear lines up with the arrow mark on the side case. Check to be sure that the cam lobes are facing to the rear of the bike, if they are pointing toward the front keep going until they face back and the punch mark aligns up with the mark on the case.

Check the cam gear to make sure the two marks on the gear are level with the surface of the head.


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SOURCE: polaris 455 diesel head torque settings and cam timing

Buy the factory shop manual

Note these engines appear to spin a bearing I think on the vibration damper countershaft and blow through the side of the engine. If you hear any different noise out of the engine, shut it down and take it apart. Mine started at about 2000 Hours

SOURCE: valve timing

your bike has a roller cam,there is no setting.
just set timing right.
bye your marks.

you can e-mail me@[email protected]
my name is freebird am 50 years old and been working on cars and bikes for 33 years.

SOURCE: Setting carbs and setting valves

around that year , yamaha used small disks(no screw adjustment) for valve adjustments, so you measured the free play and bought new ones according to the gap.best set up is just a few 0.001" of an inch at tdc