Hello.I have a 1985 15hp Yamaha SK motor.I just got through putting in new rings and pistons and rebuilding the carb.I have good compression and good fuel delivery.I started the motor and noticed water leaking out the head gasket so I shut it off and removed the head and cleaned both surfaces and reinstalled it.Now I have no spark.I checked the cdi box and I think it's ok. When I check the ignition coil with a meter the numbers do not match the manual. When I test from one spark plug boot to the other the manual says it should read 2800-4200 and I'm getting .04.When I test the two leads coming out from the coil the meter swings to zero.I get these readings using a analog meter set at rx1.When I use a digital meter set at 200 ohms I get the opposite results but the same numbers.Meaning I get a reading when testing the leads and none when testing the boots. Regardless of the difference between the two meters I think the coil may be bad but I've read other post's that say the coil rarely is the culprit.Before I go and spend $100 on a new coil I just wanted to check with someone else who has more experience in this area.Thanks for the help.