what is this dirt? (and how do I clean it)

[steppen22]

https://img393.imageshack.us/img393/3820/91767609ho4.jpg

A is a soft white chalk like dirt that won't budge. You can't really make this out on the picture, but the image shows it's location .i.e. those thin slats.
B is a purple stain that engine degreaser and polish won't shift.


Any ideas?


(Also how do I inbed images?)

https://img393.imageshack.us/img393/3820/91767609ho4.jpg
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[tutton]

Your pic aint brilliant but
sounds like grease i think, have some on the bottom of my shock its like a dry powder.

B if its a purpleish mark on your downpipes could be flame burnt effect when it gets hot and makes marks in it like this https://www.neotuning.com/images/planet/echapp-flameburnt1.jpg

To embed images
[img]Type your url to image in here[/img]
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Past: '05 Peugeot XPS '99 Aprillia RS125 '94 FZR600R
Current: '02 ZX636 A1P '51 CCM R30

[craigs23]

!. Sounds like salt (but not visible in the pic). You'd need to scrub/wire brush this off before respraying.

2. Discolouration due to the heat of the exhaust. This is quite normal and I doubt this would be removable (it'll just come back anyway).

[steppen22]

Respray waht? A paint job, do you mean? What paint do I need for yamaha ybr?
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no regrets, no retreat, no apology.
I've made mistakes in the past, and I apologise for FUCK ALL.

[Fisty]

As above really, the blue on the exhaust is discolouration caused by heat.

The white stuff is corrosion and furing from road salt. Usu a wire brush to get rid of the salt corrosion.
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[st3v3]

[chris-red]

I like the blueing you got on exhausts.
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[matthab]

For some reason my YBR never got this. I use tcut metal polish on anything thats metal like the exhaust.
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[Finglonga]

On the engine from your description its oxidisation of the alloy.
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[craigs23]

[steppen22]

[virus]

spray the entire engine then.


Cheers
John
____________________
own: 81 xs1100g...
owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.

[iooi]

[virus]

It wont affect the cooling, otherwise my CG would have blown up by now, that thing must have over 30 coats of VHT black paint on it.

Cheers
John
____________________
own: 81 xs1100g...
owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.

[craigs23]

[tutton]

See if you can find some engine laquer
i think thats what its called.

Spray it gives a clear coating, so dont need to repaint and as its a coating will stop corrosion from carrying on.
____________________
Past: '05 Peugeot XPS '99 Aprillia RS125 '94 FZR600R
Current: '02 ZX636 A1P '51 CCM R30

[The Artist]

that blue thing looks awesome. when i get a decent bike, im gonna get a brand new exhaust system that comes with the blueness already, looks cool especially when its even and done properly.

[Kwaks]

The white stuff as already said is oxidisation. Clean it off with a decent solvent and a toothbrush. Worse case scenario I find WD40 will take it off if nothing else to hand.

Blue, no worries, perfectly normal (although I am worried at the previous post who wants one done properly )
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[ZRX61]

[The Artist]

that blue stuff is awesome though.

this picture has it

https://www.motorcycle-road-and-race.co.uk/catalog/images/coti.jpg

[virus]

[ms51ves3]

[virus]

I think its more a case of how much throttle can you really give it?

Ive tested the redline once or twice, mostly when setting up for a big backfire.


Cheers
John
____________________
own: 81 xs1100g...
owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.

[The Artist]

how does the tinting work with heat. I heard somewhere that if you dip it in some sort of oil when red hot it makes it stay a deep blue colour.

[ZRX61]