Eric Girard Posted June 22, 2022 Share Posted June 22, 2022 Hi All, My motorcycle meter has developed a fog inside the glass. Neither oven to 60 °C of vacuum evaporated the fog. I took a closer look and conclude to a fungus. Seen from under, identification may be tricky! I can inject a liquid inside and not soak the dial or touch the mechanism. Tried 100% isopropanol. I can put the front glass in an ultrasonic water bath, what solution inside? Peroxyde and alcool rinse or pool chlorine+water or javel ? Finally water+dishwasher rinse? A Greek Windex soak? Link to comment Share on other sites More sharing options...
Moontanman Posted June 22, 2022 Share Posted June 22, 2022 (edited) That is interesting, a fungus that grows on glass? Is it etching the glass? this link may help. https://en.wikipedia.org/wiki/Lens_fungus Edited June 22, 2022 by Moontanman 1 Link to comment Share on other sites More sharing options...
StringJunky Posted June 22, 2022 Share Posted June 22, 2022 If the surface is damaged cerium oxide powder might polish it out. Jewller's rouge (iron oxide) is another, but cerium oxide is finer. 1 Link to comment Share on other sites More sharing options...
Externet Posted June 22, 2022 Share Posted June 22, 2022 The process I suggest is to place the speedometer in front of a fan for a couple of days. No heat, no cold, no chemicals, no wiping. With any hole to access a illumination light bulb opened, and come back with results. Link to comment Share on other sites More sharing options...
MigL Posted June 22, 2022 Share Posted June 22, 2022 I've heard of this on DSLR camera lenses that are stored in dark, humid conditions. If you can get at it ... Mild H2O2 ( 3-6 % )would kill the fungus. Mild acid ( vinegar ? ) will prevent its growth. Link to comment Share on other sites More sharing options...
Eric Girard Posted June 23, 2022 Author Share Posted June 23, 2022 5 hours ago, StringJunky said: If the surface is damaged cerium oxide powder might polish it out. Jewller's rouge (iron oxide) is another, but cerium oxide is finer. No way to reach there inside, this is not sealed but riveted shut. 5 hours ago, Moontanman said: That is interesting, a fungus that grows on glass? Is it etching the glass? this link may help. https://en.wikipedia.org/wiki/Lens_fungus Thanks, would be a similar case. Disassembly is impossible, however there is an opening in the back to access the edge of the dial. There is a gap with the side to inject and retrieve liquids using a syringe. Vinegar suggested is easy to rinse out. 5 hours ago, Moontanman said: That is interesting, a fungus that grows on glass? Is it etching the glass? this link may help. https://en.wikipedia.org/wiki/Lens_fungus What we see is fungii from under, the white root attachment on the glass offers a proper angle for reflexion lines. Then the color is darker gray when not touching the surface. Link to comment Share on other sites More sharing options...
Moontanman Posted June 23, 2022 Share Posted June 23, 2022 4 hours ago, Eric Girard said: No way to reach there inside, this is not sealed but riveted shut. Thanks, would be a similar case. Disassembly is impossible, however there is an opening in the back to access the edge of the dial. There is a gap with the side to inject and retrieve liquids using a syringe. Vinegar suggested is easy to rinse out. What we see is fungii from under, the white root attachment on the glass offers a proper angle for reflexion lines. Then the color is darker gray when not touching the surface. May i ask what brand/model of motorcycle we are talking about? Link to comment Share on other sites More sharing options...
StringJunky Posted June 23, 2022 Share Posted June 23, 2022 7 hours ago, MigL said: I've heard of this on DSLR camera lenses that are stored in dark, humid conditions. If you can get at it ... Mild H2O2 ( 3-6 % )would kill the fungus. Mild acid ( vinegar ? ) will prevent its growth. I had a lens I tried to sell to a camera shop and was told it it had mould on the inside surface. That was unfixable because it was in the coating. Link to comment Share on other sites More sharing options...
mistermack Posted June 23, 2022 Share Posted June 23, 2022 10 hours ago, Eric Girard said: No way to reach there inside, this is not sealed but riveted shut. I can't see rivets, but if there are some you can drill them out. If it's sealed at the factory by pressing the chrome ring into shape, you can carefully bend it back just enough to get the ring off. Like this : https://www.youtube.com/watch?v=2gAbn7IY8LI Link to comment Share on other sites More sharing options...
Eric Girard Posted June 23, 2022 Author Share Posted June 23, 2022 I chose this way, encouraged that I may not be too crazy! Got it without too much pain, just enough... Smells like an old shed, will make sure to treat the whole thing against molds! 15 hours ago, Moontanman said: May i ask what brand/model of motorcycle we are talking about? Hi, this is a 1998 Honda Shadow 1100 ACE I also had to operate to remove a little tingle in the right muffler. The piece of tube on the far left. The rattle at certain revs was "quite disturbing" to the mechanically minded! 26 minutes ago, Eric Girard said: I chose this way, encouraged that I may not be too crazy! Got it without too much pain, just enough... Smells like an old shed, will make sure to treat the whole thing against molds! Hi, this is a 1998 Honda Shadow 1100 ACE I also had to operate to remove a little tingle in the right muffler. The piece of tube on the far left. The rattle at certain revs was "quite disturbing" to the mechanically minded! Link to comment Share on other sites More sharing options...
Moontanman Posted June 23, 2022 Share Posted June 23, 2022 1 hour ago, Eric Girard said: I chose this way, encouraged that I may not be too crazy! Got it without too much pain, just enough... Smells like an old shed, will make sure to treat the whole thing against molds! Hi, this is a 1998 Honda Shadow 1100 ACE I also had to operate to remove a little tingle in the right muffler. The piece of tube on the far left. The rattle at certain revs was "quite disturbing" to the mechanically minded! Good luck with that, I am thinking of restoring an old yamaha vmax, still looking for the right one but a 1998 model is my preferred target. Link to comment Share on other sites More sharing options...
Eric Girard Posted June 23, 2022 Author Share Posted June 23, 2022 18 hours ago, Moontanman said: May i ask what brand/model of motorcycle we are talking about? On 6/22/2022 at 3:12 PM, Moontanman said: That is interesting, a fungus that grows on glass? Is it etching the glass? this link may help. https://en.wikipedia.org/wiki/Lens_fungus Thanks, would be a similar case. Disassembly is impossible, however there is an opening in the back to access the edge of the dial. There is a gap with the side to inject and retrieve liquids using a syringe. Vinegar suggested is easy to rinse out. 2 hours ago, Moontanman said: Good luck with that, I am thinking of restoring an old yamaha vmax, still looking for the right one but a 1998 model is my preferred target. Thanks and good luck too! Was not supposed to be a restoration project, bought the bike after 30 years not riding. A now or never moment lasting 3 years so far. Had new tires put on it and ended up with a leaky rear tire valve. $150 to replace. Had the valve replaced at another Honda dealership, was suspect of having no weight for balance. Tested myself and found an imbalance. When asked to redo, a 7.5 g weight was placed. Said they don't put weight if less than 10 g! I would not ride a modern superbike with up to 10 g wheel imbalance! So, doing it ourself is way more fun and reliable! Link to comment Share on other sites More sharing options...
mistermack Posted June 24, 2022 Share Posted June 24, 2022 13 hours ago, Eric Girard said: Had new tires put on it and ended up with a leaky rear tire valve. $150 to replace. I'm amazed. In this country, they fit a new valve as standard practice. And if it leaks, they would not charge to rectify it. I fit my own tyres. last one was the rear for a Honda VFR 800. £32 as new off ebay. As compared to about £130 fitted at the dealer. It was an easy job too, with the single sided swing arm, it just unbolts like a car wheel. Link to comment Share on other sites More sharing options...
Moontanman Posted June 24, 2022 Share Posted June 24, 2022 16 hours ago, Eric Girard said: Thanks, would be a similar case. Disassembly is impossible, however there is an opening in the back to access the edge of the dial. There is a gap with the side to inject and retrieve liquids using a syringe. Vinegar suggested is easy to rinse out. Thanks and good luck too! Was not supposed to be a restoration project, bought the bike after 30 years not riding. A now or never moment lasting 3 years so far. Had new tires put on it and ended up with a leaky rear tire valve. $150 to replace. Had the valve replaced at another Honda dealership, was suspect of having no weight for balance. Tested myself and found an imbalance. When asked to redo, a 7.5 g weight was placed. Said they don't put weight if less than 10 g! I would not ride a modern superbike with up to 10 g wheel imbalance! So, doing it ourself is way more fun and reliable! I agree, a wobbly tire on a superbike is a non started for sure. I had one of the first Kawa 900s, it rode like it had an extra hinge in the frame. Annoying as hell to ride in a tight curve, in the mountains that could be a death flaw for sure. Link to comment Share on other sites More sharing options...
NTuft Posted June 25, 2022 Share Posted June 25, 2022 Borax Potassium Iodide Check mixture for explosion beforehand. Borax: possible oxidant SSKI: possible oxidant Mixture should be ... effective against fungus. Mix borax into warm/hot water, add SSKI. SSKI: 1g Potassium Iodide + 1 mL distilled water + = 1g/dry wt. + 1g/mL = 100g + 100mL : salt + solvent = saturated solution Borax ... Sodium Borate Heptahydride. Anti-Fungal. 4tsp. + 4tsp. boiling water for mirror injection treatment, assuming you can succuss (shake) meter after injection. Link to comment Share on other sites More sharing options...
NTuft Posted June 25, 2022 Share Posted June 25, 2022 1 drop SSKI sterilizes 1ltr. water in 3 minutes. Up to 40 drops q.i.d. for fungal infections in 16-24 oz. water. 6 mo. max take ascorbate or whole C to counter hypermetabolic sx. Link to comment Share on other sites More sharing options...
Sensei Posted June 30, 2022 Share Posted June 30, 2022 (edited) I would try UV light, because no one has mentioned this method, but it is widely used sterilization method. https://en.wikipedia.org/wiki/Ultraviolet_germicidal_irradiation Once they are dead, use isopropanol or hydrogen peroxide to clean it. Edited June 30, 2022 by Sensei Link to comment Share on other sites More sharing options...
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