Update. I did the compression test. All 4 are between 136-139psi. Did the spark intensity test. Top(1) cylinder would not jump the gap. Decided coil was bad. Ordered new coil. Still no spark. Replaced switch box/CDI unit. Boom, have good spark. Water tested it yesterday evening. Ran as good as...
I just ordered the spark tester earlier. I did not use dielectric grease on them.
I have owned it for 10 years and I am familiar with how it runs and its short comings. The carbs are in the correct locations. I did not adjust any linkages during this.
The boat hasn't been used much in the...
I have a 1995 Mercury 115hp 2+2 that I am fighting through an issue. The motor has an erratic unstable idle. It runs good at any power setting above 1/8 throttle. I have had the carbs off twice and I believe they are not the issue. New Plugs. When at idle, it will run almost like its on one...
