Attempting to remove the rust from the fuel tank on my barn find Kawasaki GPZ900R

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In this video I attempt to remove the rust from the inside of the fuel tank of my GPZ900R using various methods, some more successful than others.
This is not a tutorial, its just part of my restoration journey.
Unfortunately, as you will see, my efforts are potentially wasted. Let's not forget that I know very little of the history of this 80s classic except for the fact that it was in a barn for 28 years... but I'm learning more and more as the restoration continues.
Thanks for watching, I will get back to the bike soon, I haven't been well but have been able to create a little bit of content for you anyway.

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15 сен 2024

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Комментарии : 174

@phillipparkinson7145 6 месяцев назад

Nothing for a week, then 2 episodes in 3 days. What a treat for us watching. Yay!

@AshRowland 6 месяцев назад

You're welcome 😃

@davidmulgrave1441 6 месяцев назад

Ahhh Ash when you brought out that blender jug I laughed so hard I cried. You have a brand of chaos I find superb. 😂😂

@AshRowland 6 месяцев назад

🤣 I still giggle when I think of what happened at 8:43

@davidmulgrave1441 6 месяцев назад

I got to that after my last comment. Not only are your vids informative but comedy gold. Couldn't script the antics in this episode 😂😂😂😂😂

@allanstribs 6 месяцев назад

For the tank, I also bought up the world stock on vinegar and also am still trying to retrieve the nuts an bolts I put in as recommended by many! In the end, I used POR15 3-stage treatment and it worked a treat. Do that before you get the tank sprayed as it can make a mess if you are not careful (and it looks like you are not 😂).

@AshRowland 6 месяцев назад

I nearly died of choking with laughter reading the last line of your comment 🤣

@markdavies5508 6 месяцев назад

With all those liquids going through your front door, your neighbours probably think you're running a meth lab in your new place . . .

@AshRowland 6 месяцев назад

🤣 When I was buying it from the shops, I was fully prepared with "my uncle has a restaurant" 🤣

@richardsouthey430 6 месяцев назад

Hi Ash, I had trouble with my petrol tank and sent it to Ian at Tank Care in Norfolk, he blasted the inside and sealed it. Richard

@HalfdeadRider 6 месяцев назад

That is handy to know, I'm in Norwich. I have a ZX9r that has a little rust in the tank, may need this guy at some point.

@AshRowland 6 месяцев назад

Thank you, I might just do that!

@phillipparkinson7145 6 месяцев назад

It's all out of stock.

@richardsouthey430 6 месяцев назад

If you send your tank there he will sort it out 👍

@grahamjohnson7934 6 месяцев назад

ahhhh so your the reason there is no vinigar in the shops loving the vids , don't give up lee

@AshRowland 6 месяцев назад

🤣 Yep, I did feel bad doing it, hence why I went to 3 shops 🤣

@chollythecrazycorgihesinsa6505 6 месяцев назад

Electrolysis method is a great way to remove rust in your tank. Did it to my old Yamaha…excellent results!!

@AshRowland 6 месяцев назад

I need to remove the old liner first though lol

@chollythecrazycorgihesinsa6505 6 месяцев назад

@@AshRowland yea, I didn’t see that till the end of your video. Interested in seeing how you get that off…I guess you’ll need some type of chemical. Good luck 👍

@familiekremer27 6 месяцев назад

Perhaps put gravel in the tank and tie it up to a cement mixer and let it rotate

@ACEMIDNIGHT102 6 месяцев назад

That’s worth a shot. I hope it can get through that sealer

@AshRowland 6 месяцев назад

I first read this thinking you were joking, then I realised that it's actually a good idea 🤣

@garfield2279 6 месяцев назад

I did similar, I got a load of old ball bearings, and spent half a day shaking the tank like I was making a cocktail, worked a treat.

@PhilComstive 5 месяцев назад

I had a sealed rusty tank. Put 2 good dishwasher tabs in ,fill to top with boiling water & leave it in for a few days. Keep shaking it twice a day. Turned out perfect on mine. Power wash out after then swill with wd40.

@AshRowland 5 месяцев назад

Great idea

@twowheelsoneleg5672 6 месяцев назад

The wee pipes at the back are breather/overflow pipes for the tank, I suspect the water coming out of them was a little spillage around the filler rim. I've cleaned and seal 2 Gpz tanks(750A &900R) both with Rostio kit. Remove and plug the fuel tap and fuel level sender, let ir soak for a day, wash out very well and add the sealer while still wet, drain the excess and job done. As your tank is already sealed and doesnt appear to be leaking I'd be tempted to treat the exterior rust and leave it as is. At some point in the future a tank or donor bike will crop up at reasonable money

@AshRowland 6 месяцев назад

You're right, I should have left it, unfortunately after 5 days the 20% vinegar has started to soften the liner and now it's gooey and flakey, so another job to do... it's also revealed a pin hole in the side of the tank

@twowheelsoneleg5672 6 месяцев назад

@@AshRowland , Don't let it get you down, every restoration has a few "oh b**ger" moments and everything is fixable

@NathanHiley 6 месяцев назад

8:47 that did make me chuckle. Cracking video Keep up with the great content

@AshRowland 6 месяцев назад

Thank you mate! Have you got the Tucson back fro paint yet? Looking forward to seeing it finished, great job on the dashboard by the way 😃

@dmdeleau 2 месяца назад

I recently did a 1985 tank. Rinsed big chunks out with water and then filled with vinegar and left for 36 hours. Drained the tank and then rinsed. Coated the inside with 2 stroke oil. It's been 4 months now and now signs of rust at all.

@AshRowland 2 месяца назад

Nice one! Unfortunately this one had the rust sealed underneath the sealer!

@torquewrenchmax 6 месяцев назад

Hi mate... look there is only 1 way to clean a tank... Phosphoric acid.! Three quarters fill the tank with warm water. Add phosphoric acid. (5%). Leave all day. swish it about regularly. Rinse with a bucket full of warm water with household bleach in it to neutralize it. Heat gun straight away to dry out. Then swish some petrol/oil mix in it to stop flash rust. JOB DONE! Keep up the enthusiasm.👍👍👍 👍

@AshRowland 6 месяцев назад

Looks like you did a great job on your tank, fancy doing mine? 🤣

@torquewrenchmax 6 месяцев назад

@@AshRowland Tell you what..... Not for all the tea in China..... 😂 Tanks are labour intensive and very messy.... Hey if your tank is already lined, but it's corroded then that's a whole new ball game.... I wish you all the best as my tank nearly did me in... Best of luck mate.

@kahidunn7907 6 месяцев назад

Hi Ash. I remember recommissioning an 03 vfr that had all to similar problems. As far as the tank goes I used a heap of vinegar with nuts and bolt and bits of chain and gave it a good shake 3 times a day for 4 days, I actually filtered out the vinegar after each day and reused that same stuff, after getting it nice and clean I used a 3 stage liner kit and I have to say, she came up a treat. I had to buy another fuel pump and float level indicator but I got the desired result

@AshRowland 6 месяцев назад

Top tips there.... they'll be an update on my tank soon

@hobbyvolts7770 6 месяцев назад

Your best bet would be to get some tank seal remover most brands will remove a variety of sealers and resins they will more than likely damage any rubber seals though so a good idea to remove them if you intend to reuse any of the seals.

@AshRowland 6 месяцев назад

Thanks, It would be handy if I knew which sealer was used as not all removers work on all types of sealer

@Gassit 6 месяцев назад

Hm! A bit of a dilemma. They obviously sealed the tank for a reason, it probably has some pinholes in it somewhere so if you do get the sealer out your going to have to seal it again anyway. To be honest it doesn't look that bad to me so as long as they did a good job with the sealer I personally if it was mine wouldn't worry about it.

@AshRowland 6 месяцев назад

I would have been with you on this one but the 20% vinegar is starting to soften/break up the old seal magically! only problem now is that the tank is full of flaky gooey stuff, wish I left it 🤣

@danielhancock3499 6 месяцев назад

Good video pal what I did with my tank is white vinegar in for a week then hose out all shit then used the por15 tank sealer kit it's about £60 which is expensive I no but bloody good and ad to problems since doing it about 2 year ago

@AshRowland 6 месяцев назад

20% vinegar has been in about 5 days and the old liner is starting to go soft

@Martin-id6uf 6 месяцев назад

De rust the inside of tank with kilrock descaler. Just pour in a couple of bottles seal up the tank leave the tank in various positions to make sure the liquid sits on all parts of the inside of tank. Give that half a day to a day to work. Pour out save the descaler to use again. Rinse with a mixture of bicarb and water to neutralise the descaler. If the tank has no holes your good to go if it has pin holes you can use por 15 as a tank sealer.

@AshRowland 6 месяцев назад

Will it remove the old liner though?

@glencousins2206 2 месяца назад

Nuts and bolts. Shake for days. Wait!

@AshRowland 2 месяца назад

I hope so!

@portlandsean 6 месяцев назад

n old school cheap method is to use short corse plasterboard screws and some vinegar. Swish it around vigorously.

@allanstribs 6 месяцев назад

I notice from the video that your tank overflow is blocked (11min 26sec) like mine was. I tried to unblock mine with air, then various sharp implements, then regretted it as I punched a hole in the overflow pipe coming out of the rear of the tank (pipe routed internal to the tank). That creates a nice bypass route so the tank then fails to hold any fluid from then om ......So beware and don't poke around. I eventually blanked mine off and sealed it with JB Weld and make sure I fill it carefully at the petrol station.

@AshRowland 6 месяцев назад

Thanks for that, I'll check... I've got a compressor so I'll try blast it through

@AshRowland 6 месяцев назад

Both drain pipes are good and fine, checked them yesterday, phew!

@philparrott4424 2 месяца назад

This video made me laugh, I enjoyed it.

@AshRowland 2 месяца назад

Haha thanks mate, probably my funniest one, I should have titled it "Idiot and a fuel tank" 🤣

@dimon-kawajawa 6 месяцев назад

Я делал лимонной кислотой и горячей водой,на ночь оставлял и результат 👍🏻

@Brad2meetU 6 месяцев назад

I've had various tanks on my Ninjas, some with two pipes at the rear & some USA imports which had one. I never knew why but I believe I found out on one of many trips to Paul Ricard, when I experienced fuel starvation with half a tank of fuel remaining. Everything was loaded as normal & I found that the tank bag was causing an air lock therefore preventing fuel flow to the carbs. , so until anyone can correct me as to an alternative, I conclude that one pipe was for fuel overflow & the other provided a means of breathing when the filler cap was covered.

@AshRowland 6 месяцев назад

I think one was definitely for breathing so that a vacuum couldn't be created inside the tank which would stop the fuel from coming out, the other was for overflow/rain water to come out from between the cap and tank. I might be wrong though lol

@lipsee100 6 месяцев назад

OK you could try sand /gravel ,put that in the tank and shake,

@AshRowland 6 месяцев назад

I can't even scratch it with a screwdriver, I don't think gravel will work

@andymoorhouse8820 6 месяцев назад

Hi i never laughed so much better than tv 😂😂😅

@AshRowland 6 месяцев назад

🤣 thanks mate!

@shaunhardie6077 6 месяцев назад

I think the only way forward is to have the tank "Acid dipped", that should remove the tank liner, but it will remove the paint as well so will defo need a repaint. Hope you manage to get it sorted out, 🤞.

@AshRowland 6 месяцев назад

Thanks Shaun, it'll need painting anyway so might be an option

@redmantas9294 6 месяцев назад

I used a molasses and water mix, you need to leave it in for around two weeks but it works well and is environmentally friendly so you can dispose of it easily.

@AshRowland 6 месяцев назад

Interesting... to remove the rust or the old liner?

@torquewrenchmax 6 месяцев назад

Oh ... Have a really good think about using tank sealants or linings.... If it don't leak it don't need it!!!

@TheBucksBiker-lh2nm 6 месяцев назад

Really enjoyed this episode… Especially after my horrible experiences with mine! While acetone, or that frost liner remover would no doubt eventually shift it if I were in your shoes I would get it blasted 🧨😊 Real shame the liner was not more obvious or you could have saved on the vinegar.. As you know worked a treat in mine! Still, save it for your next dodgy tank 🤓

@AshRowland 6 месяцев назад

Yea, it's really annoying, I wastes a load of time on it as well lol

@jomarwilks 6 месяцев назад

Honestly that rust doesnt look too bad my hayabusa sat for 7 years with 1/3 tank of fuel in it the rust and the fuel pump was solid, but 1 week with vinegar and spotless, the por 15 sealer and it is perfect,

@AshRowland 6 месяцев назад

I wish I left it now to be honest 🤣

@justindoucette1841 5 месяцев назад

Put a bunch of nuts in tank and bolts. Do ur vineagar. Rite. Shake the hell out of it will sand inside and knock off that crap sealant. Just step it up how hard ur shaking back fourth up down it really works the same things this was tumble sanding. It take ruff edges off new parts

@justindoucette1841 5 месяцев назад

Ps it’s loud af I forgot one thing experiment with amount of stuff in there. New bolts and nuts work better sharper

@AshRowland 5 месяцев назад

Got it 👍

@sm17adh 6 месяцев назад

Evaporust might do the job. Edd China has a video on it and it really does seem to be pretty damn effective. . If the rust is under that lining / coating and stable and not falling off why not just run with it ?

@AshRowland 6 месяцев назад

I should have left it, it was sealed, but now after 3 days of being left in the 20% vinegar it's starting to go flakey and gooey, doh!

@Jbourne247 2 месяца назад

For future reference i would forget all those and use Evapo Rust read the science on it good stuff it works, Eddie china did a whole video on it

@AshRowland 2 месяца назад

👍 I do need to get myself a tub

@detailautomotiveuk 6 месяцев назад

Hi mate try bilt hamber detox-c for the rust. Amazing on my tanks. You can get a gel version. Check other products might help on the coating removal.

@AshRowland 6 месяцев назад

Thanks for the suggestion, will it remove the old liner though?

@cabbage64 6 месяцев назад

Good try ash, seems like a job for a pro..or blowtorch it off...you decide 😉. I'm clumsy when sick too 😂.

@AshRowland 6 месяцев назад

Blowtorch? Now thats an idea!

@Martin-id6uf 6 месяцев назад

You can use a length of chain to swirl around inside it is much easier to fish out than nuts and bolts

@AshRowland 6 месяцев назад

Great tip, thanks!

@2Boomer4U 6 месяцев назад

B&M sell White Vinegar in a spray bottle that works a treat on rusty bolts etc for just over a quid.

@AshRowland 6 месяцев назад

Thanks, but 22L would be quite expensive lol, I got the 4x5L 20% from eBay for £20

@Cullz.182 6 месяцев назад

A kilo of old bolts in it strap it to a cement mixer. That should sort it.

@AshRowland 6 месяцев назад

2nd person to suggest this, I don't have a cement mixer though

@Cullz.182 6 месяцев назад

@AshRowland car wheel. strap it to your car wheel and go for a 30 mile drive. In all honesty I'd take it to get blasted or dipped as you spent quiet abit on evapo rust vinegar and such like all ready.

@oliverwoodham6685 6 месяцев назад

That pet seal stuff is a nightmare!! I think they stopped selling it in the end and new fuel eats away at it I've been told so it's not much good anyway. Hopefully you find a way of removing it and re-use that tank🤞

@AshRowland 6 месяцев назад

Maybe thats the solution... E10 🤣

@hbklow1 6 месяцев назад

KBS makes a product that is designed to dissolve other tank sealers

@AshRowland 6 месяцев назад

Thanks, I'll check it out!

@garycollins5141 6 месяцев назад

Electrolysis is the way to go

@garycollins5141 6 месяцев назад

Unless the tank has a liner

@leeducati952 6 месяцев назад

Could dip it in an acid bath, engine reconditioning shop will usually have one , or you could get it sand blasted , good luck 👍

@dalefloyd7594 6 месяцев назад

Sandblasting is too course and will stretch the metal

@AshRowland 6 месяцев назад

Probably the best option, short of giving it to someone else to deal with 🤣

@AshRowland 6 месяцев назад

I think a fine bead would be alright

@SkyrayModels 6 месяцев назад

A good chemical strip company will be able to remove the sealant for around £60-£80, but that will also expose any pin holes. There will almost certainly be some in a tank with that much corrosion in it, the 1000RX tanks are well known for it.

@AshRowland 6 месяцев назад

at this point I might just give it to the best tank restoration company I can find lol

@GPz84 6 месяцев назад

After a thorough cleaning seal tank with Red-Kote.

@martinlewis967 6 месяцев назад

Electrolysis is a good way to

@vxlgsi 6 месяцев назад

You need built hamber deox c that will make it like new 👍

@AshRowland 6 месяцев назад

Will it remove the old seal though?

@vxlgsi 6 месяцев назад

@@AshRowland no it will remove all the rust properly submerge the whole tank.

@yorkshiresdronestruggle 6 месяцев назад

Cut the bottom out blast it then weld it back up.

@AshRowland 6 месяцев назад

Probably the best option

@ACEMIDNIGHT102 6 месяцев назад

I think I’d run that tank but keep an eye out for another one. It’s sealed, so 🤷‍♂️ Just keep an eye on the fuel filter

@AshRowland 6 месяцев назад

I wish I decided to do that before leaving the 20% stuff in there for 3 days, the old sealer is now flakey and gooey 🤣

@GPz84 6 месяцев назад

Acetone should remove the old sealer. Search on RU-vid that tank can be cleaned, I've seen one's in far worse shape.

@AshRowland 6 месяцев назад

It didn't seem to touch it overnight, maybe I need to leave it for longer

@PatrickBrown-lv7rv 2 месяца назад

If it aint broke,leaking leave it?

@AshRowland 2 месяца назад

I kinda wish I left it, I didn't actually realise it had been sealed before it was too late

@mattsta1964 6 месяцев назад

If the rust inside the tank is surface rust that hasn't heavily penetrated the metal, I wouldn't worry about it. You might want to get a mini inspection camera to have a proper good look inside. You can always recoat the inside of the tank with an opaque sealer if you don't want to see the rust. How bad is the rust on the outside of the tank?

@AshRowland 6 месяцев назад

Like the one I used at 12:38? The outside is just surface rust, the tank is pretty solid to be honest

@claudioorsi6860 4 месяца назад

Evaporust for anything that has rust on it

@AshRowland 4 месяца назад

Problem is that the rust was trapped underneath tank sealer

@claudioorsi6860 4 месяца назад

Yer I realise that but for any other parts that you can immerse in liquid it is fantastic 👍

@claudioorsi6860 4 месяца назад

It just removes the rust and don’t damage the metal

@ZafiraSteve 6 месяцев назад

Tiny Tim saves a tank 😅

@AshRowland 6 месяцев назад

🤣

@roythearcher 6 месяцев назад

"OOhh... thats heavy!......" For future reference 1 litre of water = 1KG, therefore 22 litre tank full of water weighs 22KG! (48.5 LBS in old money)

@AshRowland 6 месяцев назад

🤣 yea, I wasn't expecting it to be honest, I think I forgot I filled it with water 🤣

@niged 6 месяцев назад

Hi Ash, there is a company who specialises in older Kawasaki bike parts in the North West. Can't remember their name? Maybe worth a chat with them for parts? If I remember their name I'll repost again

@AshRowland 6 месяцев назад

Thanks Nige, I wait in anticipation 🤣

@ThatOldHonda 6 месяцев назад

Get a cheap endoscope cam for your phone - will let you have a much clearer picture of how bad or not it is inside, I would be more worried about the repairs on the outside, you may end up having to seal that tank, the surface rust you can see from looking in the top, I wouldnt worry about, just put a fuel filter on it if it is like that throughout the tank

@ThatOldHonda 6 месяцев назад

Forget that, i see you bought one :)

@AshRowland 6 месяцев назад

🤣 you can always tell when someone comments half way though the video... Thank you for watching the rest though 😃

@ThatOldHonda 6 месяцев назад

Yes, I slapped myself, I get the same on my channel so I should know better lol@@AshRowland

@johnperry9568 6 месяцев назад

take it to a good welder, have the bottom of tank cut out and replaced

@AshRowland 6 месяцев назад

Tempting but if I go down the route of getting someone else to deal with it I'll find a tank restoration company to do it for me lol

@Martin-id6uf 6 месяцев назад

Try some spirit of salts it is a very aggressive rust remover toilet cleaner etc use rubber gloves and eye protection it’s rough stuff

@AshRowland 6 месяцев назад

Thanks Martin, will it remove the old liner though?

@Martin-id6uf 6 месяцев назад

Sorry don't know The Spirit of salts is cheap only a couple of quid. It can take the heaviest of rust off down to clean metal. But you need to neutralise it with the baking soda as soon as your finished or it keeps on eating the metal.. I have been rebuilding an rg250 mk1 for a couple of years. Cleaned the tank with kilrock stuff and por-15 tank sealer It's not as aggressive as the Spirit of salts. Basically different acids grades

@mattridge5986 6 месяцев назад

If that sealer has stood up to all that ... Then it's sealed .. problem solved ... Might no look the best but it works ..🤷🏼‍♂️

@AshRowland 6 месяцев назад

Yea I agree, but it might be a bit too late to be happy with it, the 20% is still in the tank and it started to make the old liner gooey and flakey so I'll have to remove it now 🤣

@OoavastoO 6 месяцев назад

Muriatic acid maybe? Definitely NOT organic (or vegan friendly 😂) but it IS used for removing rust during steel production. You could adjust the strength by diluting it with water. However, aside from extremely careful handling, there would be the added issue of proper disposal afterward.

@AshRowland 6 месяцев назад

That's something I might struggle with, although I do believe it is used to clean patio slabs and gets washed off afterwards

@micheal49 2 месяца назад

Rust-oleum Rust Reformer, maybe?

@AshRowland 2 месяца назад

I'll get some and give it a go, I'm always keen to try different rust removers until I find the right one 👍

@micheal49 2 месяца назад

@@AshRowland Caveat: I've used on external type stuff but not something like the insides of a tank. OTOH, what have you got to lose?

@chaosin73 6 месяцев назад

Ed China did a RU-vid video on rust solutions. He was doing the same thing for a land rover chasis.

@AshRowland 6 месяцев назад

Yea, but I'm not sure if any of those will remove the liner

@chaosin73 6 месяцев назад

@AshRowland wrote that before I saw that. I the liner is intact, is there an issue?

@AshRowland 6 месяцев назад

@@chaosin73 I wish I left it alone 🤣

@andymoorhouse8820 6 месяцев назад

Use a filter the all will ok ?

@AshRowland 6 месяцев назад

I could of, a bit late now though haha

@slewisedwards 6 месяцев назад

Yikes 😢 Restoring these old ladies can be a cruel mistress. I'm sure I've read about specialist tank restorers ? May be time to contract it out and swallow the cost 😕

@AshRowland 6 месяцев назад

I think you might be right, but it might also be cheaper to wait for a decent one to turn up on eBay

@robertmaitland09 6 месяцев назад

KBS strip.

@sjk8273 6 месяцев назад

Remind me, how much did you pay for it?

@AshRowland 6 месяцев назад

£995

@georgemcmahon2 6 месяцев назад

Get some evapor rust.

@nunocosta1060 4 месяца назад

ssssssugar :D

@AshRowland 4 месяца назад

🤣

@andymoorhouse8820 6 месяцев назад

😂😂😂😂 yes citric

@laurencehastings7473 2 месяца назад

You have a sample of the sealant. Why didn't you try some paint stripper on it? Yes it's horrible, messy, smelly, yucky but just say to yourself "700 pounds or bite the bullett." So far you've wasted a lot of money with zero result. A mistake that could easily have been avoided by watching vids from other RU-vid creators. We know that it's been sealed so you safely assume that it was leaking previously.

@AshRowland 2 месяца назад

I'd gone too far before realising I should have left it alone 😔

@ThatOldHonda 6 месяцев назад

Meh, just reseal it with a coloured sealer, out of sight, out of mind

@AshRowland 6 месяцев назад

Tempting, lol

@ThatOldHonda 6 месяцев назад

I did the same as you, went and looked for what a tank would cost on ebay - WOW I thought old Honda parts were expensive, not like its a 60's or 70's bike but I suppose they are getting to that classic age now, most of my bike are 40 years plus now so maybe parts will start to get silly prices@@AshRowland