[Tamir]

Welcome to the forum. The condition of your forks seems to me to be such that it does not require replacement. Fine sanding with Scotch Bright + WD-40, and that's it. Regarding the fuel tank, I would seriously consider the possibility of removing the rust from the existing tank, giving an anti-rust surface treatment, and that's it.
You can find a used fuel tank on eBay: LINK

You can read an interesting discussion about removing rust from the fuel tank here:

Is my engine bad?

jaggy22 , what a beauty pictures. Thanks for sharing! From what I learned the cathode (+) should be made of bare iron. If you decided to sacrifice an Allen key I might have just sanded the chrome plating out of it. But I see that you have reached the desired result anyway. Well done!!! What are...

www.cbr250.net

 

[Dirk Diggler]

Thanks Tamir, the chrome on the fork stanchions has actually started to flake in some points so I'd rather replace them. The tank you show in the link I have already messaged the seller and I just have to price up postage.
The tank lining or coating I don't find cost effective when you look at the time to carry out the work especially when you look at availability of 2nd hand tanks.
Thanks for your help and input.

 

[Tamir]

Whatever you choose to do is fine

chrome on the fork stanchions has actually started to flake in some points so I'd rather replace them.

This is not serious rust, the defect in the chrome is really localized a spot, no one guarantees that a second-hand purchase will not contain such a spot.

The tank lining or coating I don't find cost effective when you look at the time to carry out the work

Yes , time is a significant resource
But cleaning rust and treating the clean surface with anti-rust , both are simple operations that do not require much time.
P.S. #1 Even in the case of the fuel tank, it would be correct to say that no one guarantees at second-hand you get a fuel tank that has no problems at all.
P.S. #2 Right now you have a fuel tank that you know, and if you repair it then you have saved the need for exterior painting and new stickers.

 

[Big Cahuna]

I've had rusty tanks before that were remedied with a simple inline fuel filter and a good brand of fuel. If there are no pinholes in the tank, I would try this method first. Those coatings for the inside usually don't work out well, eventually flaking off inside the tank. You might give Electrolysis a try. It's cheap to put together and would make a great learning experience.

As for the tubes, it's hard to say if the seals are going to rub any of the pitting. It doesn't look like it from what I can see. You may not even need to rebuild them. They may be salvaged with some steel wool... in fact most of the bike may just need a good rub-down with some steel wool and a coating of your choice. Ebay has fairing bolt kits for less than $30, but they're generally incomplete sets. You can however choose your color.

I know you're just looking for parts and I hope you find them. Good quality tanks (especially the white version) are extremely hard to come by. If your "good-enough" standard is low, you can probably get what you need for around $400. If you're trying to get it to look good as new, I would guess closer to $750 and up. That's a big number for an inexpensive bike. A note about used parts: Caveat Emptor. Almost all used parts are graded wrong. If photos aren't sharp and detailed, I won't even bother asking and continue searching.

 

[Tamir]

I've had rusty tanks before that were remedied with a simple inline fuel filter and a good brand of fuel. If there are no pinholes in the tank, I would try this method first. Those coatings for the inside usually don't work out well, eventually flaking off inside the tank. You might give Electrolysis a try. It's cheap to put together and would make a great learning experience.

If you don't disparage, and If we do careful preparation work and according to the manufacturer's instructions, then the coating lasts for many years. BUT most of the time people disparage, and then it peels off.

The original Honda filter is large and quality, and can be cleaned and reused. That is what I did when I bought the motorcycle (after 70,000 km I still have the original filter).

I think that for my self, I would not give up removing the rust and providing a protective coating, and if the reason is to prevent the development of holes in the future, then yes, that is a good enough reason in my opinion.
We just should do the cleaning and coating process thoroughly and do not disparage.

With my personal curiosity, I probably wouldn't give up on electrolysis, maybe even check zinc plating as well, which is also done by electrolysis (the same set up for rust removed, just a different solution).
WARNING:The zinc coating solution is very toxic📢🧪🚩🚸☠💀
and requires working in a well-ventilated area and using a suitable face mask.