My repair manual for my Force 75-HP - 1998 - says to adjust timing at cranking - I have to remove the plugs and install them in special tool tester for spark and perform timing checking while cranking. But what can I do if I dont have that tester, can I simply remove the plugs and short them to ground to prevent sparking or ground the plug wires only or leave the wires unplug with no plugs, Any idea ?<br /><br />Thanks<br /><br />Smokey 