• Welcome to Jetboaters.net!

    We are delighted you have found your way to the best Jet Boaters Forum on the internet! Please consider Signing Up so that you can enjoy all the features and offers on the forum. We have members with boats from all the major manufacturers including Yamaha, Seadoo, Scarab and Chaparral. We don't email you SPAM, and the site is totally non-commercial. So what's to lose? IT IS FREE!

    Membership allows you to ask questions (no matter how mundane), meet up with other jet boaters, see full images (not just thumbnails), browse the member map and qualifies you for members only discounts offered by vendors who run specials for our members only! (It also gets rid of this banner!)

    free hit counter

Almost sunk my boat

zipper

Jetboaters Fleet Admiral 1*
Staff member
Administrator
Messages
7,754
Reaction score
20,986
Points
797
Location
Northern Vermont Lake Champlain
Boat Make
Boston Whaler
Year
1995
Boat Model
Other
Boat Length
18
I would set it and forget it. Use the 5200. 4200 is rated for below the waterline, best used for application where you may need to remove like transducers, sealing wiring where it may need to be replaced. Either way you can use Debond from Fawcett Boat Supplies
to remove 5200.
 

Neutron

Jetboaters Admiral
Messages
3,281
Reaction score
5,464
Points
367
Location
New Bern, NC
Boat Make
Yamaha
Year
2016
Boat Model
AR
Boat Length
24
I read about 4200 vs 5200 while looking into all this. 5200 is quite permanent and hard. 4200 says softer for bits like this that may need to be removed someday. But I'd hope the stainless model will not need to be messed with for a long time.
They now offer 5200 fast cure. I find it the best of both worlds. Regular 5200 takes like a week to cure
 

Julian

Jetboaters Fleet Admiral 2*
Staff member
Administrator
Messages
18,376
Reaction score
20,477
Points
1,082
Location
Raleigh, NC 27614
Boat Make
Yamaha
Year
2016
Boat Model
242X E-Series
Boat Length
24

drewkaree

Jetboaters Fleet Admiral
Messages
5,676
Reaction score
20,084
Points
707
Location
West Allis & Fremont, WI
Boat Make
Yamaha
Year
2019
Boat Model
AR
Boat Length
21
There is a plug in my ski storage locker and water seems to "back-up" into it and then gets into the locker, on occasion.
I didn't get a chance to take any video, but I was able to take a few pics while it was on the trailer. I can verify that when it's on the water and there's any water in the bottom of the boat, way under, in the actual bilge, when it bobs up and down, such as when you walk over to look down into the ski locker, it will fill and empty with the movement of the boat. This may not happen to everyone, because I discovered today that there was zero sealant around/under the fitting that holds the plug in the ski locker. I'll clean it up eventually, add some sealant, and reinstall my fitting. As it currently is, it doesn't stop any water from coming in, so in my mind, it doesn't matter that it's been removed for the time being. As long as my boat is draining as it should, I won't get any more or any less water than what currently occurs. With the ski locker drain plug in, it simply slows the entry of water. The reverse is true also, it slows the EXIT of water with the plug in. It drains perfectly fine, so the ACTUAL problem is that there's too much water in the bottom of the boat, causing it to back up into the ski locker when it gets high enough.

IMG_20200809_150655108.jpg


IMG_20200809_150709148_HDR.jpg


IMG_20200809_150913743_HDR.jpg
 

tdonoughue

Jetboaters Admiral
Messages
4,890
Reaction score
4,022
Points
417
Location
The Woodlands, TX 77381
Boat Make
Yamaha
Year
2012
Boat Model
AR
Boat Length
24
Yeah, looks like the caulk is shot (and you have junk below it from the drilling). I would take out that messiness from the drilling with a needle nose. Then some 4200 around the inside edge (none of the fittings' edges are sealed on our boats, which is why I don't get anal over a little ding getting water into the glass, but while you are here, might as well make it right...) and topside of the hole. Then reinstall the fitting. A new plug with a lubed gasket and you should be back to normal operation where it is not just letting water past.
 

drewkaree

Jetboaters Fleet Admiral
Messages
5,676
Reaction score
20,084
Points
707
Location
West Allis & Fremont, WI
Boat Make
Yamaha
Year
2019
Boat Model
AR
Boat Length
21
I will see if I can take a video next time my boat is in the water, because I (and many others) have the same issue. I know exactly why mine fills up, and it's the same crappy fit/finish issues that Yamaha hasn't addressed (or fired the lazy douche canoe who isn't doing his job properly).

The water comes in from AROUND the garboard fitting as the boat bobs up and down in the water. I need to remove two screws holding the fitting, pull it out, and use some 4200 on it.
I know, this is after I removed the whole assembly in my ski locker, but the plug wasn't stopping ANY water from entering, and this shows how the water backs up when the bilge has water in it, but it isn't enough to reach the bilge pump in the engine compartment, or it doesn't slosh back there enough due to the bilge pump not being in the lowest place in the boat. Next time I'm in the boat, I may take a piece of wire or something, and see how much space there is between the ski locker plug area and the actual bottom of the boat, to see how deep it is and to get a guesstimate of how much water is held by our boats due to the misplaced bilge pump.

Sorry this is so long, the best example is near the end of this video. I set it up to start playing at the point where it bubbles up into the locker, restart it from the beginning if you want to watch the whole boring 20-some-odd-seconds.

 

2kwik4u

Jetboaters Fleet Admiral
Messages
7,391
Reaction score
9,464
Points
542
Location
Georgetown, IN
Boat Make
Yamaha
Year
2017
Boat Model
AR
Boat Length
19
Place a puppy pad down there before removing the filter. Great tip I learned on here.
Baby diaper works great too. I put one under the filter and then loosen the filter with another. Catch's like 95% of the oil
 

sunbyrned

Jetboaters Captain
Messages
1,323
Reaction score
854
Points
212
Location
Louisville, KY
Boat Make
Yamaha
Year
2012
Boat Model
242 Limited S E-Series
Boat Length
24
Baby diaper works great too. I put one under the filter and then loosen the filter with another. Catch's like 95% of the oil
I like that idea. Probably more manageable.
 

2kwik4u

Jetboaters Fleet Admiral
Messages
7,391
Reaction score
9,464
Points
542
Location
Georgetown, IN
Boat Make
Yamaha
Year
2017
Boat Model
AR
Boat Length
19
And probably cheaper..
Have a toddler in the house. They were available when I did the last oil change. He's potty training now, might be my last year to have them readily on hand........and I'm OK with that :D
 

StanM

Jet Boat Addict
Messages
54
Reaction score
65
Points
102
Location
Raleigh-Durham Area
Boat Make
Yamaha
Year
2019
Boat Model
AR
Boat Length
24
Looking at the Attwood Marine catalog, I found this interesting. Caution: Stainless Steel Scupper Valves are designed for installation above the water line only. Maybe mine is above the waterline if the gas tank is empty, the boat is empty and no one is onboard???
 

Neutron

Jetboaters Admiral
Messages
3,281
Reaction score
5,464
Points
367
Location
New Bern, NC
Boat Make
Yamaha
Year
2016
Boat Model
AR
Boat Length
24
Looking at the Attwood Marine catalog, I found this interesting. Caution: Stainless Steel Scupper Valves are designed for installation above the water line only. Maybe mine is above the waterline if the gas tank is empty, the boat is empty and no one is onboard???
Wonder if they are referring to the whole scupper system is below the water line?
Makes no sense otherwise
 

BDOne

Jet Boat Addict
Messages
66
Reaction score
191
Points
92
Location
Cincinnati, OH
Boat Make
Yamaha
Year
2012
Boat Model
AR
Boat Length
24
Looking at the Attwood Marine catalog, I found this interesting. Caution: Stainless Steel Scupper Valves are designed for installation above the water line only. Maybe mine is above the waterline if the gas tank is empty, the boat is empty and no one is onboard???
I would guess that applies to any scupper valve, whether plastic or metal. The flap resists water entry but does not provide a water-tight seal.
 

BDOne

Jet Boat Addict
Messages
66
Reaction score
191
Points
92
Location
Cincinnati, OH
Boat Make
Yamaha
Year
2012
Boat Model
AR
Boat Length
24
This might be a good scupper upgrade. Their "duckbill" valve is supposed to be more durable than the traditional flapper valve.

Also, the addition of a ball valve seems like a great idea... as long as it is accessible.

 

Sbrown

Jetboaters Captain
Messages
980
Reaction score
1,030
Points
202
Location
Easton, Pa
Boat Make
Yamaha
Year
2017
Boat Model
AR
Boat Length
24
I've said this before, and I'm sure I'll have to say it again, but here goes. You should never use stainless steel for through hull fitting below the waterline. Any through hull manufacturer is gonna tell you not to, and ABYC standards forbids it. Marelon and Bronze are the only approved materials for through hulls below the waterline.
 

mraz72

Jet Boat Junkie
Messages
823
Reaction score
310
Points
147
Location
Rochester, NY
Boat Make
Yamaha
Year
2016
Boat Model
242X E-Series
Boat Length
24
Our boats have a plastic scupper (OEM) or Attwood makes the stainless steel version. I have the stainless steel one right here in front of me, I was going to replace the plastic scupper next season. Should I leave the plastic one and return the stainless steel scupper?
 

1WetBoat

Jetboaters Commander
Messages
588
Reaction score
577
Points
197
Location
Tampa
Boat Make
Yamaha
Year
2021
Boat Model
AR
Boat Length
25
Our boats have a plastic scupper (OEM) or Attwood makes the stainless steel version. I have the stainless steel one right here in front of me, I was going to replace the plastic scupper next season. Should I leave the plastic one and return the stainless steel scupper?
I wouldn't return it. On newer boats it might not be an issue right now, but the plastic ones will eventually become one. Unless the material was switched to a new plastic material I would still swap them.
 

sunbyrned

Jetboaters Captain
Messages
1,323
Reaction score
854
Points
212
Location
Louisville, KY
Boat Make
Yamaha
Year
2012
Boat Model
242 Limited S E-Series
Boat Length
24
Our boats have a plastic scupper (OEM) or Attwood makes the stainless steel version. I have the stainless steel one right here in front of me, I was going to replace the plastic scupper next season. Should I leave the plastic one and return the stainless steel scupper?
I’m not sure what year or type of boat you have but the plastic scupper on my 2012 is above the waterline. I too bought a stainless steel one in anticipation of it breaking but we’re about ten years into it without an issue.
 

mraz72

Jet Boat Junkie
Messages
823
Reaction score
310
Points
147
Location
Rochester, NY
Boat Make
Yamaha
Year
2016
Boat Model
242X E-Series
Boat Length
24
I have the same boat as Jullian in post #64. I think the scupper port is AT the waterline, maybe slightly below? The standard mentioned by SBrown might be why our boats have plastic scuppers. With that being said, they could have used one of the other materials he listed as acceptable. The standard is there for a reason, what is the risk of stainless steel vs our OEM plastic scuppers?
 
Top