View Full Version : No spark on 1970bs inboard OMC 6 cylinder

05-19-2003, 11:35 AM
" I ran the boat all last summer - ran and started fine. It sat covered in the driveway over winter..not to cold of a winter maybe froze 2 times during Dec and it turns over now but I have no spark.

Rotor and cap look good and all plugs are fine, where do I look now to fine the electrical issue?

Thanks for anyones help,

Blaze in Vancouver "

05-26-2003, 12:57 AM
" re: no spark on 70's omc.....check and clean the points,regap them also "

06-07-2003, 05:50 PM
" A couple of quick tests with either a 12v test light or voltmeter. Check the positive side of the ignition coil. With the key in run position the 12v lite should lite, or you should have 6 to 12 volts between the terminal and ground. If so problem is probably points and/or condensor. If these have been replaced it could be the coil itself. If no lite or voltage, back track and test the ballast resistor. Should have power going in and power coming out. If not replace it. "