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96 Evinrude 50/35 Jet - Maximum Spark Advance Test?
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<blockquote data-quote="turbotodd" data-source="post: 411563" data-attributes="member: 7376"><p>The few that I've done, have always done them at cranking speed. In other words, remove the spark plug wires from the plugs and ground them, except the #1 spark plug wire. Put an old plug in the wire. Hook up the timing light to that wire and crank the engine with the throttle wide open. Since the wires are off, it won't start but you should still get a good idea where your max advance is at full throttle. There are a couple Yamaha's that retard the timing at cranking speed but usually you can disconnect the wire that connects the CDI to the starting circuit. Those are the only ones that I know of that mess with the timing at cranking speed. May be others but I don't know about 'em.</p></blockquote><p></p>
[QUOTE="turbotodd, post: 411563, member: 7376"] The few that I've done, have always done them at cranking speed. In other words, remove the spark plug wires from the plugs and ground them, except the #1 spark plug wire. Put an old plug in the wire. Hook up the timing light to that wire and crank the engine with the throttle wide open. Since the wires are off, it won't start but you should still get a good idea where your max advance is at full throttle. There are a couple Yamaha's that retard the timing at cranking speed but usually you can disconnect the wire that connects the CDI to the starting circuit. Those are the only ones that I know of that mess with the timing at cranking speed. May be others but I don't know about 'em. [/QUOTE]
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96 Evinrude 50/35 Jet - Maximum Spark Advance Test?
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