Mercruiser Thunderbolt V Ignition Wiring Diagram

Models mercruiser horn warning systems on.

Mercruiser thunderbolt v ignition wiring diagram. Buy a genuine mercury quicksilver or aftermarket part. The thunderbolt v has 5 wires two of which go to the distributor one is a wiring diagram. Lead to the whitered wire terminal at the dist. Hello i just finished doing some transom work on my 23 ft wellcraft and i forgot where the wires go from the thunderbolt v to the coil.

The thunderbolt v has 5 wires two of which go to the distributor one is a ground pigtail which is grounded to the body of the thunderbolt 5 black and the other two one is purple and the other is blackish green go to the coil. Mercruiser introduced the thunderbolt iv onto their engines in 1982 alongside the introduction of the 1 r drives. Mercruiser thunderbolt ignition wiring diagram this is images about mercruiser thunderbolt ignition wiring diagram posted by peggy g. Replacement thunderbolt iv ignition control modules icms no longer come with the adapter harness 15275a1.

The tb iv system was used until the introduction of tb v mid way through 1996. Mercruiser thunderbolt ignition systems. Mercruiser starter wiring diagram trusted wiring diagram mercruiser 5. Lead to the engine ground and pos.

V gm v 8 wiring harnesselectricalthunderbolt v ignition parts. 662017 mercruiser thunderbolt ignition system and the cure. I had a slight stumble on acceleration and i had previously changed the spark plugs ignition module ohmed the spark plug wires changed to another known go. Tests for tb ignition.

Brown in mercruiser category on nov 12 you can also find other images like wiring diagram parts diagram replacement parts electrical diagram repair manuals engine diagram engine scheme wiringmercruiser thunderbolt iv no power to coil page. 1 iboats. Secondgeneration thunderbolt iv icms are still available without the adapter harness. Connect your voltmeter neg.

This is a complete working ignition system that was removed from a gm v 8 engine with the thunderbolt 4 ignition system. Mercruiser l bravo gen. Buy a genuine mercury quicksilver or aftermarket part. Wiring diagrams 4d 1 wiring colors for mercruiser note.

Mercruiser l bravo gm v 8 wiring harness electrical and ignition parts. This adapter harness was required when replacing an original thunderbolt iv icm with a secondgeneration thunderbolt iv icm. V gm v 8 wiring harnesselectricalthunderbolt v ignition parts. If 12 volts is present remove the coil spark wire from the distributor and connect it to a spark gap tester to ground.

Buy a genuine mercury quicksilver or aftermarket part. Wanted to replace the mercruiser ignition system with something new. It should read 12 volts. Thunderbolt v was an improvement on an already exceptionally reliable and well performing system.

Color codes listed below do not apply to efi and mpi system harnesses. Here is the youtube location to where the system is being offered for sale.