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Stick tach needle
My tach needle only drops to 1500 now but can be "tapped" back to normal idle speed. Just started doing it suddenly today but we've had exceptional high humidity the last few weeks and I see a little fog around the rim of the glass cover. Is there any safe way to get the glass cover off without removing the whole cluster?
Steve in Okinawa
Past Hondas:
1960 125cc Honda Benly CB92R
1964 305cc Super Hawk CB77, the only vehicle I have ever bought new in my life!
Honda CB160, roadraced as 175cc 1967-1970.
Honda Lawnmower, bought used in 2003, caught fire and melted in 2005.
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Kind of. You can pull the back off the cluster while it's still in the car, but once you get to that point, you may as well just pull the harness out from the cluster and get the rest of the cluster out. Otherwise, it'll be a royal PITA.
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I had the cluster out once to swap all the lamps with LEDs and I remember it was difficult to get the mounting bolts lined up when I replaced it. Maybe I'll wait until it gets cooler, and by that time maybe it will dry out and start working again
Past Hondas:
1960 125cc Honda Benly CB92R
1964 305cc Super Hawk CB77, the only vehicle I have ever bought new in my life!
Honda CB160, roadraced as 175cc 1967-1970.
Honda Lawnmower, bought used in 2003, caught fire and melted in 2005.
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Perhaps throw a couple of silica gel packs in the back and hope they do something?
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I've had a similar problem with a sticky tach needle around the idle area. Either that or my car is demonically possessed and the engine continues to idle with the key removed. :P
I fixed the issue by removing the cluster and applying a light oil to the bits around the needle motor. That was about 10,000 km ago, and it still works fine. Some oils can stain the gauge face if you're too liberal with applying it so be careful there. In my case there was some slight rust that had begun to form, so if the gauges are getting fogged in yours I would say a disassembly is warranted so the inside can be dried before oiling and reassembly.
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Thanks Bomberman. I will get around to removing the cluster now the weather is cooling. Yesterday I had the rather unpleasant surprise of learning that the needle also sticks in the high direction. It doesn't go past 6500, which was a bit scary, as I was accelerating up a steep hill thinking I was still in a safe rev range, and suddenly felt the engine reach the limiter!
I agree it must be a lubrication and/or rust issue. It has been low-ish humidity for a week or two now and the problem did not go away as I had hoped it would.
Steve in Okinawa
Past Hondas:
1960 125cc Honda Benly CB92R
1964 305cc Super Hawk CB77, the only vehicle I have ever bought new in my life!
Honda CB160, roadraced as 175cc 1967-1970.
Honda Lawnmower, bought used in 2003, caught fire and melted in 2005.
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