If the look of it matters to you I'd hit the gap with a small ball peen hammer to bend the edges in a bit. Then get a tube of this and make the repair. They say it works when wet, but I'd make sure it's dry and knead together real good before applying. I've used this to fill holes before and...
My guess is that one of those 2 props is mis-marked and not the exact pitch. You're talking less then 1" of pitch difference (6.6% different) that is leading to a 700rpm (12.8%) difference. What is the speed when the 3 of you are in boat and turning the 5450rpm? If those props are correct...
Personally I would not put much faith in someone who looks at those pictures and gives you their "expertise" on how to fix that without saying they need to see what it looks like after you rip that "patch" off.
I still think there is a very good possibility that it is an unnecessary "fix" that...
That keel sure looks "attached" to me. My guess is that someone probably dropped it on a rock and there is a hole in the keel (but not in the boat). Not leaking as the keel is not part of the bottom of boat. Prior owner probably saw hole and "thought" it needed to be sealed. Who knows (till you...
Classic symptom of motor mounted too low. Proper way to correct is to raise the motor. When I bought my Carolina skiff 16 you could not take your hand off the steering wheel at any speed above idle. Can't believe 2 different owners lived with this for 20 years. I raised the motor (40hp) 3 holes...
No experience in an outboard, but when I used to have a CR250R honda the NGK would run for weeks and when I put a Champion in it would be fouled out in a day. I only used as a last resort.
I don't remember exactly where it sits now and the motor is in the shed. What I did though was raised the motor 1/2" at a time. Got to the point where I needed raise it above where the clamp would not hit transom so I made that plate. I then raised the plate 1/4" at a time (securing it with 4...
Pretty sure it's a progression thing with the manufacturing. Started out fitting into the 31 case and now able to compact things and get them onto the 24 case to save space. As SA says, if you have group 31 trays in your boat a 31 case will fit much better then a 24 case. For a new install, as...
Get some plate and bolt together. Or get someone to bend some plate for you. Either into a "c" or two pieces into "L" and sandwich together, thru bolting transom. I only use a 4hp on this but would have no issues running a 9.9. In this pic I was testing height so only screwed, but now it is held...
You're definitely not set up correctly, or you are WAY overloaded. Can you take a picture of the stern with the motor in running position? Might be able to help you out. Also how much weight do you normally add? (People, tackle, coolers, etc)