Our 1968 Johnson 100 HP had milky gear oil.
We just took the lower end off and we're wondering whether we got the right seals and all the parts.
We thought we had to replace the two metal rings, labeled 10, and that's it. Now I'm not sure if those are the seals anymore nor if we need a net...
I took my boat out today and noticed I get close to 16V at full throttle, which could break my new Pulse Pack.
I'm guessing it's the voltage regulator. I took it out, hooked it up to a 19V DC Power supply and checked the outgoing voltage, then I got no reading.
If I get no reading through the...
I just drained the gear oil in my lower unit and there was nearly no oil in the lower unit(suspecting previous owner didn't fill it up). The boat only ran for 10 minutes this year because the pulse pack went bad on it, so I'm thinking the LU is still ok for now.
However, I didn't have enough...
I need a pulse pack for my 1968 Johnson 100 HP. Currently it has a Wabash(Sierra subsidy I think) and it quit working correctly.
Now I have to decide whether to go with Sierra or CDI. I have the following pros and cons:
Sierra 18-5748
Pros - Harness is compatible with current Wabash(easy...
I'm trying to buy a new pulse pack for my 1968 Johnson 100 HP.
The Sierra replacement number is 18-5748. Sierra lists the pulse pack for $250+.
CDI's part number is 113-8362.
However, Sierra and CDI's pulse packs replace 10 different OMC pulse packs. One of those is the original on my motor...
I'm trying to find out what parts I'll when changing the impeller on my 1968 Johnson 100 HP.
I already have a new Impeller, and I'd like to keep the old housing(dealer wanted $130 for new housing.. I just want the motor running for 2 years)..
It's got an electric shift gearbox (which still...
I'm considering switching out my 1968 Johnson 100 HP(electric shift, power pulse ignition) for a 1974 115HP Johnson.
Would the power tilt and controls from my old one work?
Are the 1974's any better than 1968?
Here's the one I'm considering getting...
I've got a pulse transformer or coil that occasionally makes a ticking sound, like a spark, inside itself and other times it creates a spark on the spark plug or spark plug tester(pretty big one too).
I measured for continuity and get 250 Ohms (Input is 300V since it's a pulse transformer) from...
I have a 1968 Johnson 100 HP with CD ignition and just bought a maintenance free battery a week ago.
I've found warnings saying you should not use a maintenance free or low maintenance battery with this ignition system because overcharging can damage the power pulse..
"DUE TO THE CONSTRUCTION...
I have a 1968 Johnson 100 HP V4 with CD ignition and it only gets spark on the right two cylinders and they are very weak.
Battery is new and full.
What could be causing the weak spark? Tested it right off the coil too, it's not very strong either.
Bad coil or powerpulse?
What would be...
I'm afraid I might have fried my power pulse pack by messing with the battery.. I can't seem to see a voltage suppressor near the power pulse like diagrams show.
It's an aftermarket power pulse made by Wabash, for a Johnson 1968 100 HP motor.
Do they have them built in? I've heard only...
We just bought a boat with 1968 Johnson 100 HP V4 engine.
At first we had problems with no firing and only 2 sparks working correctly and one being weak and one not sparking at all..
Since we had a dead battery we decided to jump start it with the car and accidently connected the car battery the...
We just bought a boat with a 1968 Johnson Sea Horse 100HP on it.
The owner had the engine running, although it seemed like it was misfiring or running rough.
We took it out to the lake and after about 5 mins and 5 tries we got it to start up.
It was misfiring but ran, we put it in gear and...
