Correct, in fact in order for gas to work in your engine, it has to be converted to "fumes" via the carb or injector.

 

While I can appreciate your concern, it is possible to do it by somebody who knows how to correctly handle the challenges. I had a wideglide tank welded by a shop for a similar issue and know of other people who also have.

 

The good reason to disconnect the battery is so no damage to electrical system.

 

Thanks guys for the advise.
We have spend yesterday morning working on the tank and successfully completed the job. I feel like I have stepped up in my customisation kill.

1. first we've let the petrol completely dry out by letting hot exhaust gas out of my car for 20-30 minutes.

2. had the wet towel handy and wrapped around the frame.

3. finished with little bit of putty, primer, paint and clear coat.

Thanks for all your advise.

 

Good job Yammy,,,,It seems some people "over think" things.

 

Wasn't as bad as you thought it would be was it ? Think things through, take the time and do proper prep work, take reasonable and thought out safety steps, and don't get in a hurry and most jobs fall into place no issues and look good when done.

Nicely done my friend welcome to club.

 

Yeah, I was a prime example of one too haha

Thank you sir.
Yup just like painting it took lot more time to actually do prep work than the welding itself! Im just glad there was no BOOM & no one died hahaha

 

Since You are in Sydney Australia, the next time you are in the dealership for any reason, would you ask and see if you can buy a Screamin Race tuner, one that we can't buy here in the States any more, since the EPA took a **** on us. Don't make a special trip or anything like that. I already have one that I bought back in 07 but I would just like to know.
By the way you did a great job, it looks very professional to me, actually it looks better than that, because of all the care you put into your project.

 

Some belated theory for the insomniacs among you.

Please don't take this as a contradiction of the excellent advice already given. I'm not a welder.

Combustion requires fuel (gas vapour), heat (welder), and oxygen. Remove any one of the 3 and combustion can't take place.

As others have pointed out already, vapour is near impossible to eliminate from tanks, for whatever reason, but you can eliminate the oxygen by displacing it with things like water, N2 (Nitrogen) or CO (Exhaust). Water can be problematic and as a rinse its effect on vapour will be temporary and its effect on O2 will be nill.

Exhaust is pretty easy to come by and if you can feed an exhaust hose into a tank so that fumes thoroughly displace the oxygen, then lightly cap the tank by sitting a rubber ball on the opening to hold the CO in, you'll have effectively removed the O2 preventing the possibility of combustion.

I get it that for the experienced, this may be just too much fvcking around but for the nervous among us, displacing the O2 is a sure way of widening the safety margin.

FWIW

 

I've already asked about a month ago when I was picking up my bike.
Its still around but will be out of stock very soon here too. Aftermarket tuners will replace the stock one in Australia as well.