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You've obviously got a wiring problem. I'd start with the ignition switch. I've attached a basic wiring diagram for a Yamaha ignition switch. You need to check the black wire. Make sure it's connected securely at the ignition switch and follow it as far as you can to make sure it's not...

I have an app on my phone that's pretty awesome. It's "Navionics". Much like google maps and Wayz, you can actually type in a starting point (local marina) and a destination point and hit GO. It's pretty amazing. It gives depths, speed and if you enter some information about your boat it...

Go to the plumbing department at your local home depot and look for a pressure test plug. They have a wing nut that tightens to cause it to expand. They come in sized starting at 1-1/2" and go up to 4". The depth might be an issue, but it's worth checking out. The 1-1/2" is $6.

One of those green wires looks like something has been chewing on it. I think from your testing that the relay has power all the time. So the switch basically completes the circuit by connecting the ground side of the circuit. I'd check all of those wires and make sure the connections are all...

When you say you have the correct prop, we realize that the prop is intended for that outdrive. It fits and it's correct. HOWEVER, there are props that fit your outdrive that are pitched differently. You have a 19 pitch prop. The pitch is the angle of the blades. a 19 pitch prop should...

Is the boat new to you? Has it ever run better than it does now? A prop with a pitch that is too high will bog down a motor and take forever to plane and it terrible for your motor. It's like starting a 4 speed manual transmission in 4th gear. Not sure about anyone else, but I was not able...

I live in Georgia. Title is required for boat and trailer here. Not motor. However in South Carolina, motors require a title also. With a bill of sale signed by the registered owner, I have been able to get a title for several boats. Once you start the paperwork, you should be good. Before...

There should be a fuse holder with a fuse in it under the cowling of the motor. It's usually in a black rubber fuse holder. If you have accessories working in the "on" position of the ignition, I'd get a helper and see if you're getting 12v to the starter with the key in the "start" position...

Sending units can be tested with an ohm meter. Once removed, hook the leads from a multimeter (set to ohms) to the two terminals on the sending unit. Some only have one terminal, if that's the case touch the other lead to the housing. Then simply move the float up and down. You should see a...

I've never seen a carb wear out. I've rarely heard of one breaking. If you find a good price, I'd buy it and a rebuild kit and get to work.

I don't think he has a starter problem. As he says, he spins it over for 15 minutes before it starts. And it eventually starts. A bad starter won't spin a motor over for 15 minutes. And if it's spinning too slowly, are you thinking that somehow it gets faster after spinning for 15 minutes...

I'd start with fuel pump.

Any time I buy a used boat and motor, before I ever take it out on the water I either drain and replace gas, or pump some into a clear container and check for water. I then replace the water pump, spark plugs, foot grease and then test it in the driveway. If it doesn't run perfectly, I rebuild...

I thought it was a disaster. I'm not a big racing fan, but aren't there enough different kinds of racing where they don't need to try to blend two together?

Put some vice grips on the 3" that has slid out and twist and pull. Brute force is the key, but twisting while you pull will help.

I can't see how it would be a fuel problem. I'd be looking at electrical issues or a crimped fuel line. See if it does it hooked up to a hose in the yard. That might help diagnose the issue.

I'm not an inboard/outboard sort of guy, but with outboard motors, the manufacturer has a recommended max RPM range where the motor is most "happy". So with outboards, you look for a prop that provides the desired speed you want to reach that is within that RPM range. My boat came with a...

Absolutely it is possible. Had the same thing happen with an old Evinrude 55 HP outboard. I replaced some part or something and it would run great on the hose, but not in the river. I got really angry at the boat ramp with wife an 3 sons all ready to go out in the boat and it would spin for...

Easiest thing to do is remove the drain plugs and pump the primer bulb a few times until clean/ clear fuel comes out. Shouldn't have to remove the carbs to do that.

I recently bought a small outboard motor for a john boat. The guy said it needed the impeller replaced, but it would run fine, but don't let it run for more than a couple of minutes or it would cause serious damage. Got it home and eventually picked up an impeller and started taking it apart...