Coil testing...I decided to see if a performance coil did any good at all.
.Here are the results.
Stock coil and CDI... 20,000 volts
Orange Aftermarket coil and stock CDI ...25,000 volts
Yellow Aftermarket adj.CDI and Orange Aftermarket coil...27,000 volts
Ok as you can see the stock coil is weak.The reason this is bad is because the NGK fine wire plugs take MORE voltage to fire than the NGK copper plugs do . The GY6 ignition uses a system that fires the plug for every complete turn of the crank which is 2 times for a 4 cycle . This type of system is called a wasted spark ignition and does not give a long dwell time in order to fully charge the coil windings.So I decided to use the Orange coil and the NGK Copper plugs to help avoid mis-fire while doing the next step .
.which is testing for the best gas octane to use.