[Rad Rich]

Hello, I am getting ready to some work on my 2017 classic chrome 500.  Need to change the chain, rear and front sprocket.  i have been noticing a gas smell in my garage for a while.  There was a piece of paper on the ground next to my bike and I noticed a gas stain on the paper.  Upon inspection, I found that the front of the tank (right side, Kick start side) if I stuck my fingers up there, They came out slightly wet.  Very small leak, but a leak just the same.  What is up underneath the front of the tank on the right side that might be leaking?
Thanks,

[AmBraCol]

That's a good question, but I don't recall what the underside of the classic tank looks like.  A couple years ago my Rumbler 500 (same bike as the Thunderbird 500 sold in India)  started leaking at the rear of the tank, a seam had broken. So I had it welded up and then applied a tank sealant on the inside.  Can't remember at the moment what the sealer is called, but it's a two part product and does a great job.  Seals and prevents further corrosion. Depending on what's going on inside your tank that might be the way to go.  The kit came with a cleaning agent to get the inside spic and span, then a degreaser to prepare the surface and finally the two part sealer.  If it's a pin hole or something similar that might be worth your while to do.

OK. Had a quick DuckDuckGo session and here's the kit I used.

KBS Coatings Fuel Tank Sealer Kit

[axman88]

If the leak is indeed coming from the front right of the tank, there's not much there to leak except a seam.

https://i.ebayimg.com/images/g/V5cAAOSwMydi332s/s-l1600.jpg

[Haggis]

I had two leaky tanks, both went at the same place.
The spot welds that hold the flat plate that the tank supports are welded to had fractured.
Just a very slow weep, you smell it first.

[186buck]

I bought my 2012 C5 EFI in 2013 new. The fuel tank started leaking from a seam after about 8 months. Enfield replaced the tank under warranty. No furthur leaks after 9 years.

[MowgliB5]

Many years ago when tanks used to rot out I would finish off after the repair by mixing up some fibreglass resin and run it round inside the tank. Obviously the dedicated kits weren’t around then.

[danketchpel]

It looks like you can still buy new tanks from eBay as a backup option.