Repair and troubleshooting information for the Suzuki FA50 Moped.

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Gas Gauge on tank is leaking underneath

I have 2 1980 Suzuki FA50s and they are both leaking gas BADLY. The leak always stops at a certain point and leaves a small amount of gas in the tank. I decided to pull the tank out to have a look and here's what I found.

The gas gauge, which seems to only exist on the tank in the 1980 models, is leaking from underneath. I don't see any screws or anything that tighten it in place. I shook the small amount of gas around that was inside and saw it leak pretty heavily around the seal on the bottom of the gauge. What can I do to reinforce that seal around the gauge itself?

Any information is greatly appreciated.

Thanks,

Mike & Zoë

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Michael Edwards post some images of what you are looking at. Use this guide Adding images to an existing question for that. It is possible that your gauge may be leaking which might require a replacement or that the thread is leaking which you might fix with some silicon tape. Let s see what's going on...

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Thanks everyone for your replies. After a lot of research, I found the most economical solution. I used QuikSteel Plastic Tank sealant. I cleaned the surface around the gauge really well using vinegar and an old rag. Next, I proceeded to spread the sealant around the entire perimeter of the gauge, leaving the gauge itself open and still able to be read. I have two of these 1980 Suzuki FA50's and neither are dripping a single drop at this point after both of them having the same leak issue. Really happy with the QuikSteel and for $10, it was an inexpensive fix.

Not surprised that the 1980 was the only model to have the gauge on the gas tank. My guess is that they had a lot of issues with this and decided to remove it. As for now, we're all good. If anything changes, I'll update.

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Michael Edwards will be eternally grateful.
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