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Scupper Valve/drain plug

Valle956

Active Member
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Boat Make
Yamaha
Year
2007
Boat Model
SX
Boat Length
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Just replaced both on my 07 Sx230. Used 4600 to make sure seal was right. Waiting 48-72 hrs to fully set. My question is, do I just fill the area with water through where my water pump is? Or what is the best way to Ops check it? Kind of nervous to just put water through the engine compartment, but the drain plugs are off. Any help would be appreciated as this is the first time I do something serious to the boat.

Back story: I noticed when I launched I saw air bubbles by the engines, there was water when I drained it. I’ve been scared as people posted to do this ASAP as you never know when it will fail (Scupper Valve). When I barely started to turn it with a wrench, it just fell apart!! I hope this is the culprit. Glad the Facebook posts scared me and did this.
 

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Babin Farms

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Just put water in the engine bay. It will go into the bilge and to both plug & scupper seals and as long as drain plug is in you should see no water leaking outside around either of them.
 

Valle956

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Just put water in the engine bay. It will go into the bilge and to both plug & scupper seals and as long as drain plug is in you should see no water leaking outside around either of them.
Awesome. Thank you. First time boat owner so I’m a bit nervous.
 

Babin Farms

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shouldn’t take more than 15-20gallons to know if it will leak.
 

Paddy Cole

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Just replaced both on my 07 Sx230. Used 4600 to make sure seal was right. Waiting 48-72 hrs to fully set. My question is, do I just fill the area with water through where my water pump is? Or what is the best way to Ops check it? Kind of nervous to just put water through the engine compartment, but the drain plugs are off. Any help would be appreciated as this is the first time I do something serious to the boat.

Back story: I noticed when I launched I saw air bubbles by the engines, there was water when I drained it. I’ve been scared as people posted to do this ASAP as you never know when it will fail (Scupper Valve). When I barely started to turn it with a wrench, it just fell apart!! I hope this is the culprit. Glad the Facebook posts scared me and did this.
I will be replacing the scupper next week on my 07 AR230. I have read a few posts on this topic. Do you have any tips or suggestions?
 

dgfreeze

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A plumbers wrench from Home Depot/Lowes/etc works for the large nut. If your keel has a recessed area for the scupper, you will need to grind the flange of the new scupper down so it sits flush on the hull. Use 4200 sealant. Orient the scupper so the flapper hangs down. Be mindful of the safety switches attached to the cleanout tray, don't damage the switch or wiring. Take your time, it's not difficult.
 

Julian

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I will be replacing the scupper next week on my 07 AR230. I have read a few posts on this topic. Do you have any tips or suggestions?
Lots of info in the FAQ: https://jetboaters.net/faq/#faq-223

Copied below to make it easy!
  1. Scuppers--How to install new SS Scupper
  2. A Thread with more photos and part #'s
  3. A thread on borrowing pre-made scupper wrenches to fit in the small gap in the bilge.
  4. Another thread on how to do it.
  5. A discussion on if this needs to be done on models where the scupper is higher (240 series, new 210s 190s etc)

My video on the topic:
 

Paddy Cole

Active Member
Messages
3
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Boat Make
Yamaha
Year
2007
Boat Model
AR
Boat Length
23
A plumbers wrench from Home Depot/Lowes/etc works for the large nut. If your keel has a recessed area for the scupper, you will need to grind the flange of the new scupper down so it sits flush on the hull. Use 4200 sealant. Orient the scupper so the flapper hangs down. Be mindful of the safety switches attached to the cleanout tray, don't damage the switch or wiring. Take your time, it's not difficult.
Thank you!
 

Paddy Cole

Active Member
Messages
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Boat Make
Yamaha
Year
2007
Boat Model
AR
Boat Length
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