Johnson 100hp Aplifier conversion

[Michaeljur]

Hi hope someone can help , is it possible to convert my amplifier on my Johnson 1971 100hp to a power pack of some kind, how would it be wired up

cheers michael

 

[F_R]

Re: Johnson 100hp Aplifier conversion

Only possible if you spend Mega-bucks--if possible at all. Let's just say it would be so expensive that we'd be wasting our time to delve into it to see what all would be required. You can start off with a crankshaft, flywheel, top bearing head, complete ignition system, wiring harness, mounting brackets, and on and on.

 

[Michaeljur]

Re: Johnson 100hp Aplifier conversion

I was told a GT40 coil from a corolla or so would be ok to by pass the amplifier and existing coil , to work the vaccum advance etc. Have I been misled , thanks for your help

 

[F_R]

Re: Johnson 100hp Aplifier conversion

Oh well, that is a different question. You asked about a power pack. A lot of people have experimented with using car ignition coils with mixed results. Mostly poor. They simply eliminate the amplifier and add a car coil and condenser and use the existing points to fire it. You also need a ballast resistor if the car application uses one. Those points are getting hard to find and expensive, so if you burn them up from using car coil current you create a new problem.

 

[Michaeljur]

Re: Johnson 100hp Aplifier conversion

Thank you for that info . so what do you suggest , I just cant get an amplifier here without paying an arm and a leg , cheers