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#1 Tachometer troubleshooting QM125-2D
- Join Date
- Nov 2015
- Location
- Great Britain
- Posts
- 47
03-07-2016, 12:50 AMSince I was this succesful in changing the stator/pick up coil, I start to look into the digital tachometer's problem again.
Needle stays at 0 since I got the bike, sometimes jumps a little, but I think thats only when the bike is shaking...
Can you tell me THIS bike's source of the impulse for the tachometer? As I read it's different for certain bikes.
Also: how can I test this source to rule it out as a culprit?
Also: if it's ok, how can I test the very end of the wire goihng inside the tach clock? Check the voltage in it, or how?
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#2 Re: Tachometer troubleshooting QM125-2D03-07-2016, 04:04 AM
Source = Pickup's + (don't trust ANY color code) coz u said that horrible story in http://www.mychinamoto.com/forums/showthread.php?8058
Check continuity (ohm) | current flow (amp | DON'T check this if knows nothing | a "short" can cause fire ) ...
Any pals know these nearby?Last edited by humanbeing; 03-07-2016 at 04:45 AM.
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#3 Re: Tachometer troubleshooting QM125-2D
- Join Date
- Nov 2015
- Location
- Great Britain
- Posts
- 47
03-07-2016, 06:08 AMThat's the CDI there on the picture?
I have a new pickup fitted since 3 days, and a new CDI is coming via mail-
So I presume if I fit the CDI and still no rev count, then either the wire loom, or the clock itself is faulty :(
Just missed a 27pound ebay auction for a complete sinnis stealth clockset...
No pals near me anywhere XD
I can check voltage, and current flow confidently, without damaging the multimeter ^^
but I need to learn to check continuity aswell- didn't looked it up until now.
By the way: my ignition-off parasitic drain started from 7.62 Milliamper with the old stator coil, now it's 0.38 mA with the new. - still bigger than 0.1 mA :( could the dead rev counter cause the rest of the leakage?
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#4 Re: Tachometer troubleshooting QM125-2D03-07-2016, 07:40 AM
It's very healthy
From RV125(VanVan) shop manual http://postimg.org/image/jam4bvmql/
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Sensor wire should shared w/ #6 in most case. https://translate.google.com/transla...htm&edit-text=
===
At ur own risk!!! 3k rpm /6k rpm signal generator https://translate.google.com/transla...790&edit-text=Last edited by humanbeing; 03-07-2016 at 08:00 AM.
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