Smiths GPS01KIT Wiring question?

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aboatguy

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I have a SMITHS SSM-2013/01 electronic Norton speedometer and a GPS01KIT
I also have three instruction sheets
One from Andover Norton and 2 from Caerbont Automotive
None of them discuss how to wire the GPS01KIT to the motorcycle or speedometer
The only sheet that mentions the GPS01KIT only talks about using the green wire to set the pulses to either 8000 or 16000 output

I searched the caerbont website and can't find the instructions, I found a link on their site and it took me to a regular wheel sensor instruction.
I'm hoping that someone here has installed this and can help me out with how to wire this combination. I have a (12 volt negative ground system on this commando)
I am assuming the the red wire goes to positive the black to negative the green to positive for 16k pulse and negative for 8k leaving the white to go to
the white black on the speedometer. However, I could be wrong which is why I am reaching out to you all.

What is the proper wiring connections for a SSM-2013/01 and GPS01KIT?
Thanks so much.
 
Last edited:
aboatguy said:
I have a SMITHS SSM-2013/01 electronic Norton speedometer and a GPS01KIT
I also have three instruction sheets
One from Andover Norton and 2 from Caerbont Automotive
None of them discuss how to wire the GPS01KIT to the motorcycle or speedometer
The only sheet that mentions the GPS01KIT only talks about using the green wire to set the pulses to either 8000 or 16000 output

I searched the caerbont website and can't find the instructions, I found a link on their site and it took me to a regular wheel sensor instruction.
I'm hoping that someone here has installed this and can help me out with how to wire this combination. I have a (12 volt negative ground system on this commando)
I am assuming the the red wire goes to positive the black to negative the green to positive for 16k pulse and negative for 8k leaving the white to go to
the white black on the speedometer. However, I could be wrong which is why I am reaching out to you all.

What is the proper wiring connections for a SSM-2013/01 and GPS01KIT?
Thanks so much.
Click to expand...
Sorry I'm not answering your question but...
What advantages does this kit have over the standard pulsed pickup from a wheel?
Cheers
 
On the GPS receiver, you have four wires:

  • Red 12 volt DC POSITIVE connection
  • Black 12 volt DC NEGATIVE connection
  • White Speed Signal Output from Speedo
  • Green Select Wire (used to select pulses per mile)
    • For 8,000 pulses connect the green to black
    • For 16,000 pulses connect the green to red


In terms of connecting it to your Smiths Speedo:

  • Red on the GPS Receiver goes to the Green and White/Red on the Smiths Speedo
  • Black on the GPS Receiver goes to the Black and Red on the Smiths Speedo
  • White on the GPS Receiver goes to Pink on the Smiths Speedo
  • Green on the GPS Receiver goes to the Green and White/Red on the Smiths Speedo (assuming you are going to set the PPU to 16,000)
 
Thanks again, using the information from this site and another along with instruction sheets (someone sent me a copy of caerbont PIL 081.2) which is the instruction sheet for the GPS01KIT
I jumpered the wires so that I could hook them up to a bike battery and had my wife take me for a drive in her car and the speedometer and odometer work.
Wired like this: GPS red wire +12v green wire to +12v black wire to -12v
white wire to the speedometer white/black wire \
Speedometer White/Red wire +12v Green wire +12v
Red/Black wire -12v black wire -12v

I am going to install a momentary switch to -12v for the brown wire in order to toggle between trip and odometer





Thanks again
 
Last edited:
@aboatguy sorry about that - yes white/black not pink (just checked my bike, and the pink is taped off)
I usually use the white/black wire for the signal on the speedo, as I have found the red/blue one I used first time round to be more susceptible to noise and interference from other components on the bike.
They both work fine for most of the speedo sensor types (inductive and magnetic wheel sensors as well as GPS receivers) but the white/black is more reliable.
CAI also suggested I may need a resistor inline (same with the tacho) but I found I didn't need it.

My recommendation of using 16,000 pulses per mile instead of 8,000 is based on the unit recovering quicker when you ride under a bridge, or in a built up area.
It also massively improves the accuracy at 40mph and under.
 
The unit I use covers bridges and tunnels by continuing sending a signal if it detects sudden loss of sat signal, it assumes you don't change speed but better than no reading at all.
 
gforce said:
@aboatguy sorry about that - yes white/black not pink (just checked my bike, and the pink is taped off)
I usually use the white/black wire for the signal on the speedo, as I have found the red/blue one I used first time round to be more susceptible to noise and interference from other components on the bike.
They both work fine for most of the speedo sensor types (inductive and magnetic wheel sensors as well as GPS receivers) but the white/black is more reliable.
CAI also suggested I may need a resistor inline (same with the tacho) but I found I didn't need it.

My recommendation of using 16,000 pulses per mile instead of 8,000 is based on the unit recovering quicker when you ride under a bridge, or in a built up area.
It also massively improves the accuracy at 40mph and under.
Click to expand...
CAI still hasn't responded to my query, what inline resistors did they recommend?

I'll give the 16K pulse setting a try.

Thanks again
 
Yes, I have a ¼ watt 22KΩ resistor inline on the red/blue signal wire that picks up on the black/white that goes from the coil to my Tri-Spark electronic ignition.
 
gforce said:
Yes, I have a ¼ watt 22KΩ resistor inline on the red/blue signal wire that picks up on the black/white that goes from the coil to my Tri-Spark electronic ignition.
Click to expand...
Is the resistor necessary for the tachometer, I didn't see it mentioned in either of the tachometer instruction sheet? (I have instructions from Andover Norton and Caerbont)
 
I believe it was only mandated by CAI for the Tri-Spark ignition, as they noticed spikes during testing.

However, when I stopped and thought about what is actually going on here - we are tapping into a high voltage (12 volt) and high current (2 amp) line, just to get a pulse.
I subsequently decided to fit a resistor on every bike I have worked on in order to protect the tacho.

These things are designed around pickups that run at a stabilized, clean and filtered 5 volts and work with milliamps, so getting a pulse from the hot wire that feeds the coil directly is (in my opinion) dicey at best.
I feel I can mitigate some of the risk by adding a resistor.

I have done several of these now, and the only exceptions on adding a resistor has been Power Arc (because it has a dedicated tacho output) and magneto bikes where I use an inductive pickup on the spark plug wire.
 
gforce said:
I believe it was only mandated by CAI for the Tri-Spark ignition, as they noticed spikes during testing.

However, when I stopped and thought about what is actually going on here - we are tapping into a high voltage (12 volt) and high current (2 amp) line, just to get a pulse.
I subsequently decided to fit a resistor on every bike I have worked on in order to protect the tacho.

These things are designed around pickups that run at a stabilized, clean and filtered 5 volts and work with milliamps, so getting a pulse from the hot wire that feeds the coil directly is (in my opinion) dicey at best.
I feel I can mitigate some of the risk by adding a resistor.

I have done several of these now, and the only exceptions on adding a resistor has been Power Arc (because it has a dedicated tacho output) and magneto bikes where I use an inductive pickup on the spark plug wire.
Click to expand...
gforce,
I have run these gauges for 2 years now with both types of ignitions.Currently using Tri-Spark and single 12V coil. I love the way they work and have not had to use any resistor.Do you put the resistor on the power feed to the tach?
Thanks,Mike
 
Last edited:
YING said:
gforce,
I have run these gauges for 2 years now with both types of ignitions.Currently using Tri-Spark and single 12V coil. I love the way they work and have not had to use any resistor.Do you put the resistor on the power feed to the tach?
Thanks,Mike
Click to expand...
Sorry,I didn’t see the previous post
 
The unit I run recommends a 33 ohm resistor in series on the 12v+ feed wire for all applications.
 
@kommando when you talk about "the unit I run" can we take that to mean you don't run either a smiths tacho or the veethree GPS reciever that is used in the GPS01KIT?

I am just trying to ascertain how much notice I take of your posts, and whether I need to look at the value of resistors I use.
I went from previous research by CAI which was confirmed by Tom Kullen (who is no longer with us, so I can't quiz him on it)
 
Just note that mine has the same function, the size of the resistor is not applicable, just that it helps as all these units have a 5V electronics trying to run in a 12V environment and levels of protection from voltage spikes vary.

AN use the unit I use to feed another speedo they sell.
 
gforce said:
we are tapping into a high voltage (12 volt) and high current (2 amp) line, just to get a pulse.
I subsequently decided to fit a resistor on every bike I have worked on in order to protect the tacho
Click to expand...
Be aware that the coil primary voltage reaches 300 volts when the coil fires. If the tach is designed to connect directly I would expect the limiting resistor to be internal. If not, then an external resistor would be mandatory.
 
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