That's the "overrun clutch" functioning. The rear of F gear is configured in a saw tooth configuration where R is vertical sided slots and cogs. Any time the engine is in F gear and is going slower than the prop is turning....you are on plane and slow down to do something is when this is...
If I were to do an inspection where I may have something clogging the circulation of the cooling water, I'd do the following:
1. Inspect and then replace impeller. While water pump is open, put muffs on the LU and squirt water into the pickups on the LU and see if it freely flows into the...
Since the relays are sealed but the contact to the external wiring harness isn't, my guess is that in your replacement operation, you slid the relay contacts out of the sockets and slid the new ones in, both operations cleaning off the wiring harness contacts surfaces.
If you have the problem...
How do you know it's working...define working....I never changed them just to be changing them but if I felt like I needed a new one the engines got a new one....course I don't go a couple dozen miles out in the ocean either. Never had one in bad shape. Some folks report that they have chunks...
No! I've had small, single cylinder 4 stroke engine prefer a mid range RPM to a WOT throttle position with the same cranking rope pull. The engine has a steel wheel with blades attached.....starting under load essentially on my leave vacuum. I'm guessing the fuel availability is the problem...
My service manual for 100 hp range 2 stroke Mercury's says to expect problems if compression is less than 120 PSI. You're close and it may be ok but the manual says what it says!
I just bought a used iMac desktop and it has the latest software (Sequoia 15.7.2). As you say, the automatic correct function drives me nuts....it thinks it knows what I am going to type and it corrects the spelling of some words to its liking, not my deliberate spelling. I went to the section...
Most sparked outboard engines use a rotating magnet on the flywheel passing an iron core coil of wire, anchored adjacent to the flywheel magnet to generate the trigger voltage to cause the spark plugs to fire.
The equation for how that works is V (output voltage amplitude) = [ L (inductance of...
I had a similar fix for the same problem. When I read Faztbullets comments on here on how to get at the float and reglue the magnet on, I said !@#$% with that.....just refill the tank after every outing.
On the rear of the powerhead, upper left corner is a cap about 3" long. Under the larger diameter part of it is the Pop-off valve that opens under water pressure starting at around 2500 RPM. If it sticks closed you get a OT alarm at planing speeds.
Under the smaller diameter of the cap is the...
I think Faztbullet nailed it in that the magnet on the float falls off over time so you never get the signal that there is oil in the tank...but as I mentioned before a lot of engines have a modulator for oil vs a steady horn for OT.
As I read the repair methodology, its not an easy fix to get...
Back in the '50's dad bought a 10 HP Scott Atwater outboard. Where the tiller handle attached to the engine proper there was a flat area on the top side and installed in a hole therein was a rubber holder with 2 "shear" pins and accompanying cotter pins. Very thoughtful.....we referred to the...
