I thought it would be useful to post a few of my learnings on the 1971 Mercury 7.5 Thunderbolt ignition system --known as the phase maker. I've learned a ton from this site over the years and am hopeful some info I gathered might be useful to others.
Background: A few of years ago I bought a...
A while ago I purchased an ancient Mercury 7.5 HP that had sat for years and years without running. The outboard looked really nice under the hood, and the price was right and so I didn't mind spending a little money on parts This is one odd little engine under the flywheel; it has a stator...
Hey there,
I'm really hopeful one of the OMC gurus can help me out. Last week I purchased an Evinrude 15 hp model 15604R that hadn't been run for a while. The exterior looked nice and it turned over so I took a gamble. The previous owner bought it from someone else but was never able to get...
Really need some help. My 1989 Mercury ELPTO refused to plane at the start of my annual spring walleye trip. Started fine but got only a strange popping sound at half throttle and above. Assumes this means the 2x2 system never kicked in and never jumped to 4 cylinders firing. I changed the...
