Re: can anyone tell if this coil is within spec?
Have you tried cleaning the optical eye? Remove the sensor wheel and check for damage, especially where the top slots are located. Sometimes the wheels will break out where the windows overlap. Check the sensor eyes for dirt, grease, etc. If you have to clean it, use denatured alcohol and a Q-tip. Do not use any other cleaning agent because damage to the optical lens will occur. Tried checking the cranking voltage at the battery? Is it below 11 volts?
Disconnect the boat side harness and connect a remote starter unit. Check for spark. If the engine has spark, check the boat side harness?s Black/Yellow wire for shorts to ground. Also try disconnecting the 4-pin connector on the port side of the power pack and see if the spark returns. If it does, use an multi meter set to Ohms and see if the Black/Yellow wires are shorted to engine ground.