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DC Ground Leak? We just called it a passive drain or short. I am not sure about new boats, but newer cars often have small current flows when everything is off, especially when the battery is first connected. It would not surprise me if boats start to have those as well.

Change as many parts as you can. I think the carrier was to hard to get out, and didn't look worn, so I left it original. I run a 16 foot (about 1000# with motor and gas) speedboat with that motor. She will swing a 23P prop, but the hole shot is a bit sluggish. She would probably swing a...

That is a lot of pitch for that boat/motor combo. A 21"P prop would probably be max. The poppit controls cooling at high speed. If that is where she is overheating, it is a possible candidate. Make sure you get the exact poppit kit for your year and model motor, as they changed over the years.

Gee, loosen the winch strap so you have 6" of slack. Tie the transom eyes to a tree and pull the trailer forward a bit pulling the transom back off the trailer until you can add blocks under the transom corners. Now drop the tongue and add the blocks under the transom corners, padded with...

Sorry, block drains and plugs are a bit different. Maybe replace both adaptors and plugs. From Flea-Bay: TWO PACK Mercruiser Exhaust Manifold & Engine Block Drain Plug KIT 22-16951Q1

Take a ride to any marina and see how they block boats up. You may even see a boat similar to yours blocked up.

Std Garboard drain plugs are tapered. You would need a special NPT tap to clean the threads, vs a std bolt tap. The Garboard drain plugs do not normally leak, even when put on dry. If you have the correct plug for the garboard drain, and it leaks, you need to check the garboard drain fitting...

You could try marineengine.com, ebasicpower.com or iBoats. Maybe they list another number.

I did not see any new ones for sale. What is wrong with yours?

Hesitation to accelerate could be due to a bad fuel pump diaphragm. If the diaphragm leaks, raw fuel can foul a spark plug. If/when the boat gets on plane, the leak can be too small to affect high speed operation.

Gee, any sealant that is suitable for below the waterline is fine. I used silicone for 50 years. Pure silicone is completely waterproof. Silicone is also fine for aluminum. Silicone is often used to caulk windows to siding trim made of aluminum. Life Seal is good for wet surfaces. If you...

All or almost all power boats under 40 feet, may be blocked up in the corners of the transom and under the bow. Drop the tongue, put cement blocks and wood under the transom corners. Lift the tongue and put blocks and wood under the bow. Now you have leave to repair your trailer.

You might check your compression. Did you do that when you first got the motor, as a comparison could be useful. What shape is the prop in?

Gee, block up the boat and replace the bunks. Pressure treated lumber and a bit of indoor-outdoor carpet and some stainless steel staples.

That gasket looks real good. You need to find out why the ones you bought didn't fit. Maybe they sent the wrong ones, or you have a number wrong? You probably want to find out before you need more parts. Maybe you could take them to a Merc dealer and see if they match his stock or something.

Usually when fuel tanks are that rusty/corroded, they are at the end of their lives. Your tank looks to be aluminum. Saltwater + time will rot them out. If it were me, I would pull the tank out, clean it up and see if it is still sound.

The FG cracked because it was not strong enough. FG cloth provides the most strength of the hull. Epoxy putty like JB weld is strong in compression, but not laterally like cloth is. You can embed cloth in the JBWeld, and add some strength, but not enough, IMO. Grind out the bad glass, and...

Engines usually have a throttle stop setting. This is to protect the carbs from being pushed past their opening stops. Perhaps this adjustment is incorrect on your motor. I am not sure if you have a distributor or not. If so, the adjustment may be above it on a black plate. if 4 coil...

You need to grind out the cracked glass and reglass it. The best repair would be on both sides, however, it looks like grinding the inside of the cracked glass will be difficult. Can you reinforce the inside with a piece of plywood?

NJ traditionally had aprox. 2 weeks of real warm weather and 2 weeks really cold weather. We had 4 nice seasons and rain throughout the year. The last 3 years we have little rain during the summer, and more than 2 weeks of hot weather. Real cold weather is gone here as well. I planted a...