r/Outboards

Hi there,

My 2003 90hp 2 stroke mercury wont start. Im wondering if this is what the sparks should look like when testing the spark plugs?

I tried spraying starter fluid into the air intake and still nothing, so i assume it is not a fuel issue. When testing the sparm plugs, i am getting this, and wondered if that is how it is meant to look?

One plug wouldnt spark at all, although I dont know if that would be enough to stop it from starting. The spark plugs were replaced in July.

The boat hasn't been run in 3 months and so I wondered if 3 months old fuel could be causing this issue? The last tine the boat ran, it probably idled for 20 minutes without running as it wouldnt go into gear.

We also replaced the neutral lock lever after finsing it it had snapped, and so im wondering if we may have caused a faulty connection in the control box somewhere.

Thank you!

Bought a boat and the trim doesn’t work, bought a new trim assembly but can’t get the lower mounting rod out. Someone else worked on it and drilled into it and now I’m unsure if it’s seized or I need to unscrew it or what. Pumped it with kroil and wd40 pounded on it a bit, I’m obviously missing something. First boat unsure of what to do.

I'm restoring a 1977 Johnson 85hp. 85EL77S. I've removed all electronics on motor save for stator and timing plate, expensive. Everything else I've replaced harness, voltage regulator, coils, power pack. Starter bolts seemed stiff coming out so I tapped the holes out. We'll it has 1 bolt on front of motor and 2 on the side. One of these goes into the crankcase and I tapped it and flushed it with WD40 thinking it was a blind hole. The top starter bolt doesn't go into the block the bottom one does. Its the crankcase cover it bolts onto. How screwed am I without taking the carb adapter off. You can see in photo bolt hole goes into the crankcase cover.

Mercury 225 Pro Xs rough idle/stalling

I have changed all 3 diaphragms and checked the o-rings on all of the injectors. I am getting fuel in the air. When iI depress the air Schrader valve, fuel comes out. Need some help on what to look at next.

Testing it after carb rebuild.

Help! I’m about to pull my hair out. 1974 evinrude 15hp 15404s. Rebuilt carb, 100 psi on each cylinder, good fuel lines, good spark plugs, pumping water good. Why is it misfiring like this? Is it really just the idle adjustment screw? I turned it up and it seems to be doing better, but I have it nearly two full turns out from seated already. I don’t want to get out on the water to do a test and get stuck.