Ignition swaping question

mark131

Recruit
Joined
Jul 16, 2005
Messages
2
I have a 1972 Johnson 100ESL72R 100HP outboard motor. I do not understand this single coil/pulse pack system that they designed for this motor. It worked great for a couple of years but then I crossed up the battery cables one night while changing out a bad battery in the dark and that was the end of my ignition. This is one complicated system and I hate it. Can I replace the system with a more conventional system like you see on every other boat in the world? The price for one of these pulse pack is 300 bucks and that is just the beginning.
 

ratt1966

Seaman
Joined
Jun 21, 2003
Messages
58
Re: Ignition swaping question

where have you checked for parts there are some less expensve parts out there?
 

DHPMARINE

Captain
Joined
Dec 16, 2003
Messages
3,688
Re: Ignition swaping question

I admit prices for parts in your ignition are high,but 'every other boat in the world' doesn't mean Wallyworld prices.<br /><br />1976 Mercury 175 switch box is $213.00.And it uses 2 of them.<br /><br />DHP
 

mark131

Recruit
Joined
Jul 16, 2005
Messages
2
Re: Ignition swaping question

I checked out the CDI electronics parts last night and I think I go with their package and just replace everything. It will cost about 500.00 and they say to forget the clipper circuit. Have you had any experiance with CDI parts?
 

Prkranger2

Seaman Apprentice
Joined
Apr 17, 2005
Messages
35
Re: Ignition swaping question

Marc I understand what you mean about those amplifer/pulse pack. I have 1969 85hp Johnson that I am not getting no spark. I have to replace the amplifer. I checked some local places and they the cost were excess of $350. I found a place in florida were I can get a new parts for $225. That is a new amplifer and a new coil. With a 2 year warrenty.
 

CATransplant

Admiral
Joined
Feb 26, 2005
Messages
6,319
Re: Ignition swaping question

Hmm...actually, that ignition system is very reliable. But, like all modern electronics, reversing the batter connections just isn't a good idea, as you discovered.
 
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