08-09-2017, 01:14 PM | #1 |
Join Date: Sep 2014
Posts: 1,915
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12000 RPM Universal Motorcycle Speedo/Tach
Just a couple notes for anyone installing one of these.
If your bike doesn't have a fuel gauge sender, the fuel level display will flash. Installing a 10 ohm to 90 ohm resistor between the sensor wire (usually blue/white) and ground will stop the flashing. 1/4 watt resistor is fine. 10 ohm will give you a full tank reading and 90 ohm will show empty. Wheel magnet polarity makes a difference. Mine came with 2 rare earth magnets 4mmx10mm which look the same on both sides. The sensor will only pick up either North or South, not sure which but if you attach them to your wheel the wrong direction you'll get nothing. If you put one on the right direction and the other the wrong direction, the speed reading will jump around. There are a couple old videos on Youtube about installing this meter but the firmware has been updated since they were produced. Used to be the maximum setting for wheel diameter was 999mm but the newer ones can be set up to 2999mm. This lets you use only one magnet if you want instead of a minimum of 3 on a 21" wheel. All the other connections are easy enough to figure out. BTW, pushing the button when the unit is already on will toggle the display between odometer and tripmeter. |
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08-09-2017, 09:55 PM | #2 |
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I'll need to try the resistors you are using. Twas recommended I use 100 to 500 ohm and all I ever got was flashies.
Mine came with 3 magnets and I used two because I have ten bolts in my hub. I must have got them right the first time because my speed reading is steady.
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Cheesy ______________________________________ 07 Hi Bird Enduro-Flown the Coop 07 Ural Gear Up 79 Honda CX500 77 VeloSolex 4600 V3 73 VeloSolex 3800 I'm making this up as I go.-Indiana Jones Telling me something 'is for my own good', is a fast way to a fat lip.-Me I don't even care about my own problems, why should I care about yours?-Quote on one of my favorite t-shirts |
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08-10-2017, 06:28 AM | #3 | |
Join Date: Sep 2014
Posts: 1,915
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Very good! About a 1 out of 4 chance of getting both magnets right the first time?
One of the settings is supposed to be for switching between a 100 ohm and 500 ohm sending unit but I didn't try that. Default is evidently the 100 ohm scale. I left the 10 ohm resistor in the circuit so it always shows a full tank of fuel and I'll never again have to visit the gas station again. Quote:
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08-10-2017, 07:43 AM | #4 | |
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Join Date: Oct 2016
Location: Houma, La.
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Quote:
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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08-10-2017, 09:31 AM | #6 |
Join Date: Sep 2014
Posts: 1,915
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Mine is set on 2 cylinder but reads correctly. I suppose that's because of the lost spark system used on the CG engines.
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08-10-2017, 09:36 AM | #7 |
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Join Date: Oct 2016
Location: Houma, La.
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Good to know. I know other had issues after changing by accident and couldn't set it back to 1.
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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08-10-2017, 09:37 AM | #8 |
Join Date: Sep 2014
Posts: 1,915
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Mine came with no instructions or wiring diagram at all. The very limited instructions found on the internet are either for an older unit or a bad translation, for example one describes how to set the "Flat tire circumference."
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08-10-2017, 09:42 AM | #9 |
Join Date: Sep 2014
Posts: 1,915
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Wasn't sure if Matt's unit would work on my Lifan just as I wasn't sure this one would work but I'd only be out $25 if it didn't. So far I'm happy with it.
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08-10-2017, 11:48 AM | #10 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Mudflap, does the gear indicator work? How did you connect the tach lead?
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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08-10-2017, 12:14 PM | #11 |
Join Date: Sep 2014
Posts: 1,915
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Gear indicator works. Just left the 6th gear wire from the speedo/tach loose. Connected the tach lead to the existing tach wire on the Lifan. Works great.
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08-10-2017, 03:17 PM | #12 |
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Join Date: Jul 2010
Location: Elburn, IL
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Second hardest thing I had to do on the Ural was the tach. It's the white wire on the Ducati ignition system.
The turn signals, sheesh!
__________________
Cheesy ______________________________________ 07 Hi Bird Enduro-Flown the Coop 07 Ural Gear Up 79 Honda CX500 77 VeloSolex 4600 V3 73 VeloSolex 3800 I'm making this up as I go.-Indiana Jones Telling me something 'is for my own good', is a fast way to a fat lip.-Me I don't even care about my own problems, why should I care about yours?-Quote on one of my favorite t-shirts |
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05-23-2018, 06:52 AM | #13 |
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Join Date: Jul 2010
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So, how’s yours working, Mudflap?
I’m fast approaching 5000 miles on mine and have had a couple of minor hiccups. Didn’t have the display come on a couple of times. Turning the ignition off and back on fixes that. Did have an issue recently where I’d be doing 55mph and the speed display would drop to 28, then bounce all over, then settle down. And then do it all over again. Cleaning the accumulated winter crud off the magnets and the prox switch took care of that. Already ordered a pair of prox switches as spares, probably get some spare magnets, too.
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Cheesy ______________________________________ 07 Hi Bird Enduro-Flown the Coop 07 Ural Gear Up 79 Honda CX500 77 VeloSolex 4600 V3 73 VeloSolex 3800 I'm making this up as I go.-Indiana Jones Telling me something 'is for my own good', is a fast way to a fat lip.-Me I don't even care about my own problems, why should I care about yours?-Quote on one of my favorite t-shirts |
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05-23-2018, 06:41 PM | #15 |
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Join Date: Jul 2010
Location: Elburn, IL
Posts: 5,962
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Well, yeah. I have that same issue with mine.
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Cheesy ______________________________________ 07 Hi Bird Enduro-Flown the Coop 07 Ural Gear Up 79 Honda CX500 77 VeloSolex 4600 V3 73 VeloSolex 3800 I'm making this up as I go.-Indiana Jones Telling me something 'is for my own good', is a fast way to a fat lip.-Me I don't even care about my own problems, why should I care about yours?-Quote on one of my favorite t-shirts |
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