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TOPIC: KZ750N has 3-4 pinholes.

KZ750N has 3-4 pinholes. 20 Dec 2018 13:26 #795475

  • JohnLuke
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So I just found out that my 750 has pinholes in the tank. It doesn’t appear to be super rushed put I plan to fill the holes clean the tank then use some sort of coating.

Does anyone know what is the best way to fill the pinholes?

Thanks!

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KZ750N has 3-4 pinholes. 20 Dec 2018 14:01 #795478

  • Scirocco
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Where are the pin holes located,(pics)?
You can solder and fill the holes with tin or coating the tank with POR15 which will do a sealing layer over upcoming pinholes.

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KZ750N has 3-4 pinholes. 20 Dec 2018 14:58 #795479

  • Nessism
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I had a tank like that and used Caswell's epoxy sealer after derusting. Caswell's is super thick and reinforces the metal nicely on tanks with rust and thin metal. I started off by soldering all pin holes but during the derusting process more pin holes appeared and I got sick of breaking out the torch so I switched over to sealing them with epoxy on the outside after that.

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KZ750N has 3-4 pinholes. 20 Dec 2018 17:06 #795483

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About an inch from the bottom on the left side.

It also leaks from the emblem on the right. I’m gonna check it tomorrow.

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KZ750N has 3-4 pinholes. 20 Dec 2018 17:16 #795484

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I’ll take photos of it Tomorrow.

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KZ750N has 3-4 pinholes. 20 Dec 2018 20:39 #795491

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Here are the 3 holes. I have access to a Lincoln flux core welder. Could I clean up the area and then tack it the sand it off? No matter what I’m probably gonna red coat it.
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KZ750N has 3-4 pinholes. 21 Dec 2018 05:43 #795494

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There are probably several good coatings available, but preparation is the key. I would do additional tank prep prior to whatever prep chemicals a kit would have & I would probably use the stuff from Caswell or the KBS coating or West Systems epoxy.

Quote from the link below by Jeff.Saunders of Z1Enterprises.com: What I've used on tanks that you can't seal using Kreem or Por15 is a marine epoxy resin to line the tank. West systems marine resin epoxy. 105 resin and 205 hardener. This mix creates a hard shell inside the tank that's impervious to gasoline. Use a 5:1 mix. ... KZR topic: KZ 650 tank leaking behind badge - options?
...

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Last edit: by martin_csr.
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