1983 Yamaha 30EN Outboards Service Manual, Page 22Get this manual
hAfter adjusting the ignition timing, set the joint link connecting the COl magneto to the magneto control leverClip the timing light to the upper cylinder high-tension wire NOTE: _
If clipped to the lower cylinder high-tension wire, the timing light will not workBe sure to clip to the upper cylinder high tension wire
1COl magneto base
2Joint link
Remove the dial gauge stand from the cylinder, install the cylinder head gasket and cylinder head, and tighten the cylinder head bolts to specification
1 Upper cylinder high -tension wire
2Timing light clip
bStart the engine, and fully advance the ignition timing4
Full-retarded position is unnecessary to adjust the ign ition timing at the full-retarded position, since it is automatically adjusted when the timing at the full-advanced position has been correctly setIgnition timing adjustment using tim ing light3