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I also agree. You may want to fix things as they pop up but it's an older motor and some components just wear out and are either not easily replicable or worth the cost to replace

This video shows the recommended method for glassing plywood to a flat surface. The ere different ways to get a good result but the practice of using a fillet to add some radius to the 90 degree joint adds a lot of strength and crack resistance

It looks like the outer skin on the inside has been crushed by the engine bolts. That could could be caused by retightening the bolts excessively or stress from a soft core. It also looks like caulking was added to try to seal the gaps around the washers. The caulking I see is not typical...

You didn't say what the WOT revs were for the 17M prop. Assuming it was near spec, I find it hard to believe that a 1/4 inch change in diameter would make such a difference. I think the difference has more to do with the model of prop and not the dimensions. For comparisons on performance, you...

Make sure you use a caulk for resealing the frame. Don't use an adhesive.

Here is my hat for Friday's boat show. It is the Pettit Paints cap ( from when they gave you a cap for buying ridiculously priced bottom paint, which is now even more expensive:)

Thanks for the kind words. My main goal if possible is to see how the boats look from a quality control perspective.. That includes Gradys of course but also Whalers, Pursuits and a few other brands

What are the motor models? When the motor stalls while trolling, what revs are you running. Also, does the motor just die or does it shudder first. The first case is often due to low fuel delivery rate/pressure and can be a filter, low pressure fuel pump, or a out of spec idle rev ( not likely...

I will be attending the NY Boat Show this Friday. Tomorrow morning I will post a picture of the cap I will be wearing:) So if you at the show on Friday and you see someone who might be me, just ask; "Are you Seasick?"

This video should be helpful https://yamahaoutboards.com/en-us/featured-videos/featured-videos-gallery/helm-master-ex/helm-master%C2%AE-ex-owner-operation-%E2%80%93-trim-assist

If you know how the motors were treated for the 20 years, that will help make a decision. If treated badly, abused, not maintained or not run very much, the damage is already done. Why do you think they need refurbishing? Do they run? That's the first step I would take and if you don't know the...

I suspect that the display also wiggles during initial self test. If so, it looks to me that the display is bad.I would ask the dealer to swap it and see if it works correctly

If the ignition is turned on but you don't start the motors does the display still look garbled?

Wspliter; It amazes me how dumb I can be sometimes:) I woke up during the night and immediately thought about the cable frequency and sad" Duh, think about a guitar string. As you change its length, its frequency changes. You are spot on and I am in the dunce seat!

I will be all ears. My engineering days were in a different era:)

That is an interesting response but I am not sure that length makes a difference. I think that as long as the cables are made with the same specs, material, diameter etc, the natural resonance frequency depends not the tension, not length. My background is in a different discipline so I could be...

I wasn't aware that the wet coring issue with expresses was due to a vent. Which vent exactly are you referring to. I thought the issue was due to something else like the deck to hull joint.

Long ago, a consulting engineer told me how he was hired to get the cables that held up a sports arena dome properly adjusted. He hung a rope from each cable and plucked each cable one at a time while measuring the frequency that the cable vibrated at. . He then had the workers adjust the...

What exactly doesn't sit correctly mean? If you want to determine the stringer spacing that can be estimated fairly well by forcefully tapping the bottom of the hull with a soft faced hammer. If you tap hard enough you will be able to hear a difference when you are over a stringer. Those hulls...

The big end is called a cam buckle or a strap buckle but I haven't seen one with that stub. The web site Strapworks has all kinds od hardware but I couldn't find a buckle with any sort of leg for mounting. I assume there is a plate of some sort that the stub slides into and locks. I think you...