Paint Flaking - Cylinders

[uscgmac_imp]

It should be fine when covered as long as the bike is completely cooled down and your using a vented cover.

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[Rocky_imp]

It's a shame to see the paint flaking like that.
I live within sight of the Atlantic Ocean so I'm at the mercy of salt air.
My bikes are garaged out of the sun, but I never cover them because humidity might collect underneath and form moisture.
I keep an eye on the humidity levels and when it creeps up I use a fan in the garage controlled by a timer to keep air circulating and that prevents moisture from forming all over the bikes.
Even so, I have to watch for surface rust can start to form regardless.

[kballowe_imp]

Remember that some of the old bikes had some sort of clear-coat on the engines and cases.
As they aged, that coating would start to lift. Some of the wheels were done the same way.

[Nortoon_imp]

The cylinders look like they have suffered from road salt damage from winter driving. Washing it once you got home would help, but not stop the corrosion because the bike has spend the entire working day covered with the salt. Salt will chew through the whatever finish is on aluminum. That is why airports used urea, not salt, to deice runways.

BTW: If a car has dry road salt on it, it would be better to neutralize and gently clean it with white vinegar, than scrub it with soap and water. We Canadians know that from cleaning our car mats once winter is over. Unfortunately our cars smell like chip wagons for a few days each spring.

Air conditioner covers do not cover all the way to the bottom to prevent condensation from rusting the machine out during the winter. Similarly a motorcycle should not be covered right to the floor if stored in an unheated garage. Changes in temperature and slushy cars will create condensation in the garage and under the plastic bike cover. Simply lift the cover in the center and place it on the foot pegs to let it breathe.

Concrete garage floors will also give off moisture. If possible a motorcycle should be stored on a sheet of plywood or hardboard. Particle board is not recommended as it absorbs moisture.

I found out the hard way when the mufflers on a my Goldwing suffered some surface rust on the bottom one winter. After that I parked it on a sheet of plywood, and gave the mufflers a light coat of Vaseline. It helps protect against rust, and wipes off easily when the bike is started in the spring.

[Django]

This problem is not due to salt or weather circumstances. I had the same issue at my CB1100. There is just a production range, which had issues with the grounding/painting process. It's mostly the 2013 model.



6 months later:

[Tezza_imp]

Mine has had the same problem. I just used a soft brass wire brush to clean up the flaking bits and then repainted using an airbrush. My bike is always kept under cover, hardly ever ridden in the rain and we have no salt on our roads here.[/i]

[the Ferret]

Django... look at the condition of the bolts holding the little front motor cover on in the two pics. The ones in the 6 months later pic look horrible compared to the same bolts in the top pic. Those are plated bolts are they not? Something was attacking your bike obviously. The bolts have nothing to do with paint.

I just went out and looked at mine and they still look like your top ones, just shy of 3 years old, ridden all year long thru brine and salt in winter, stored in unheated garage uncovered, gets washed spring and fall, 28,000 miles.

[Django]

Hm, I think, that was just debris. Unfortunately I don't have further close ups of that area.

[Cormanus]

This problem was reported frequently on the UK forum. My CB1100 has also suffered from it. Because I'm lazy, I call it patina.

[Wisedrum]

I call it Honda's bad painting. My CB also suffers right from the beginng and I'm
not lazy but take care of my Honda

Wisedrum