Final Update:
I took the boat out this morning, hopeful that my latest adjustments would solve the persistent issue of being stuck at 4,000 RPMs with the engine missing intermittently. Unfortunately, the issue persisted.
Thinking that I needed to check my WOT timing under load (instead of the...
Update and Response to @racerone :
Thanks for your reply and suggestions! I should have mentioned the additional maintenance I've done on the engine. I previously outlined these on another thread when dealing with the warning horn not activating when the key was turned to the “on” position. For...
Update:
I took the boat out today after investing $350 in three brand-new CDI Electronics CDM modules. Unfortunately, this didn’t resolve the issue—my engine is still unable to reach over 4,000 RPMs. It looks like the CDMs from "ROP Shop" weren’t the problem after all. The downside is that the...
Update:
After revisiting the troubleshooting section in the manual, I began to suspect that the stop circuit might be contributing to the intermittent spark issue. I decided to inspect the kill switch, and it turned out to be heavily corroded. It seemed plausible that an intermittent short...
I have not run it with the cowling off on the water. I'm fairly new to outboard engines (this is the first powerboat I've owned beside a tender for my sailboat that has a new 2.3 Honda 4 stroke), so I'm not sure about the DOs and DON'Ts. I figured that if a splash of water somehow jumped into my...
Update:
My DVA adapter arrived on Thursday, so I took the opportunity this weekend to remove the flywheel and stator for inspection. The magnets on the flywheel, as well as the stator and trigger, appeared to be in good condition. However, the trigger wires looked questionable—the colors didn't...
That's what I figured too. I replaced all three CDMs and it didn't fix it. I did buy the after market modules as the OEM were significantly more expensive.
Hi everyone,
I’m hoping to get some advice on an issue I’ve been dealing with for the past two years on my 1998 15’ Boston Whaler Dauntless, powered by a 1998 Mercury 75 HP 2-stroke (ELPTO, Serial OG622***). Here’s a detailed breakdown of the problem and what I’ve tried so far:
Initial...
Thank you @alldodge.
After work today, I removed the oil tank sensor again and tried to trigger it with a magnet. My neighbor came over to small talk so I tried to show her the horn was working but not the sensor by grounding the sensor wire that legs off the horn. Horn would not sound. Turns...
What does this mean? I'm clearly missing a piece to this puzzle. It looks like a single purple wire leaves the ignition switch and then splits into three. I have two purple wires leaving the ignition switch. One of the legs breaks off into two. I'm assuming all the purple wires are exactly the...
Hi all, this is my first post on the forum.
I purchased my first powerboat 2 months ago. I previously owned a 1972 Pearson 30 sailboat with a Yanmar 2GM20F Diesel.
The boat I bought is a 1998 Boston Whaler Dauntless 15 with a 1998 Mercury 75 two stroke.
I've been fixing issues here and there...
