Digital speedo odo tach fuel gauge - from DaRiver or ali
Aug 8, 2022 7:39:59 GMT -5
90GTVert, 190mech, and 2 more like this
Post by GrumpyUnk on Aug 8, 2022 7:39:59 GMT -5
People have tried to connect this:
And have about zero instructions on how to connect and adjust the settings.
I installed one on a Jonway after modifying the damaged cluster face. Setting it up properly was akin to playing blind mans bluff with mittens on.
I will insert my description of how to do the settings at the bottom.
I found two things:
The calculation for the speedometer adjustment did not work as I figured. I had to decrease the calculated factor by 1/3 to make it accurate. The number is supposed to be the number of wheel revolutions in one kilometer, essentially. It could be the gearing down at the hub was not as expected.
The tachometer never did work properly. It showed about 5k with the engine, 139QMB, at idle. It pegged the tach quickly. The '4 cylinder' setting gave lower rpm indications, but was still significantly incorrect.
The same speedo is available from aliexpress for about 1/3 less than the DaRiver price.
....
HOW TO SET Color and adjustable parameters:
tire rotations/Km(or minute), Kph/mph, tach 2 or 4cyl, fuel gauge 2 or 3 wire
Backlight Color Selection:
press the button in the ODO(normal key ON) state and hold for 3 seconds to switch the backlight color(there are supposed to be 7). Display will rotate through the available colors. Release at desired color. You must be quick. Eschew utterings of disdain for the designer who could have slowed it down.
ODO / Trip Meter:
With the key ON, Short Press the button to switch between ODO and TRIP METER selections.
I think while displaying the TRIP METER, pressing and holding will reset, but my TRIP is at zero...
---
Following settings adjust for Tire diameter KPH/MPH TACH and FUEL GAUGE
To get into settings mode PRESS and HOLD the button and then switch the
ignition to ON.(key on) The screen displays P0000.
SETTING mode is ENABLED by adjusting to display: P6610
At this time, ONES place 0 will flash
LONG press until TENS place starts to flash,
SHORT PRESS once to make TENS place display 1 P0010
LONG PRESS press until HUNDREDS place flashes
SHORT PRESS 6 times to display 6. P0610
LONG PRESS until THOUSANDS place flashes,
SHORT PRESS 6 times to display 6, P6610
The screen shows P6610 FOR A FEW(really few) SECONDS which is the 'key'
to get into the SETTING mode and enable changes.
Screen will display 00466 from the factory(actually I forget) which is the factor
for wheel rpms per 1,000 meters. (1Km)
Adjusting speed accuracy for tire circumference:
The original instructions to set speedo ratio said to:
Do the ones, tens, hundreds to make the screen show 00466,
46.6HZ corresponds to front wheel RPMs at 60KM/H. The minutes cancel out
if you divide 1,000 meters by the diameter in meters.
Use the SHORT PRESS to change number,
Use the LONG PRESS to get to the next column.
.... Explanation
The number entered reflects the number of rotations of the tire/wheel
EVERY MINUTE at 60Kph, which conveniently obfuscated is the number or rotations in 1,000
meters. (60KPH==1K per minute==1,000M)
60 Kph == 60,000 meters/hr divided by 60 min per hr
60,000/60 = 1,000 meters per minute
1,000 meters divided by circumference equals tire revolutions
per KM == number_entered
calculate your circumference(Pi X Diameter) in meters.
Many cycle tire sizes listed here:
www.heidenautires.com/wp-con...t-18-Rev.1.pdf
An example front tire is a 130/60-13, circumference from the above PDF
table is 57.8" OR 1468mm or 1.468 meters. Divide 1,000 by your circumference in meters giving tire rotations. Approximately 681.2.
Enter 681 in the speedo for the given tire & wheel combination.
**************
682 did not work... read 10mph when going 15mph per GPS speedo.
So, 681* .66(2/3) should work. 454.36 revs(signals or TURNS of the cable for 1,000m
Using 454 as the factor number.
Once the final number is entered, LONG press to get to the
thousands column,hold until it flashes and release to exit the TIRE RPM setting
and get the display as noted below, indicating for KPH/MPH.
KPH/MPH setting
The screen displays 1-001, which means KpH,
To keep KPH do a short press to skip this step,
if you want to switch to MPH,
LONG PRESS press switch to get ones column blinking, and then
SHORT press to display 1-002 which indicates that you have set it to MPH.
LONG press to get to the next setting
3.Cylinder Setting for Tachometer
Use the SHORT/LONG procedure as in the above steps to set the ones digit.
SHORT press the button to make the screen to display 2-002, indicating that
this is a 2-cylinder.
SHORT press skip to the next step leaving as a 2 cylinder.
LONG press until ones place flash, then SHORT press to make the 2 a 4,
which means 4 cylinders. Confusing with 'lost spark' ignitions, but apparently
2 cyl works for cycles that fire on each revolution.(NOT)
SHORT press to step to the next setting.
4. Fuel gauge settings. Follow the above steps, SHORT press the until screen displays 3-002, which means that this is a 2-line oil meter, SHORT press to save all settings and exit, LONG press until ones place flash, and then LONG press to display 3-003, that means has switched to 3-line oil gauge.
{A two-line gauge had a HOT and a GROUND only. A THREE line has a HOT & GROUND and a lead that come from the cluster} I think many scooters are three line.
........ end of instrux & explain .....
I think the BK/R wire is for the tachometer. I connected it to the CDI wire that was running the ignition coil.
The W/BL wire is for the fuel gauge. If you have 3 wires, one increases as fuel level rises, the other decreases.(most that have 3 wire) Pick one, and touch it to the BL/W wire, turn the key to ON. If you have a half tank, good luck. Try the other wire, same way, and if you are not at a half tank it should indicate properly, or show the opposite condition.
I used short lengths of wire with alligator clips to temporarily connect to power & ground. One of the cluster light bulbs had switched power & ground, so it was convenient.
- tom
__________________
vertical and above ground - my daily goal
And have about zero instructions on how to connect and adjust the settings.
I installed one on a Jonway after modifying the damaged cluster face. Setting it up properly was akin to playing blind mans bluff with mittens on.
I will insert my description of how to do the settings at the bottom.
I found two things:
The calculation for the speedometer adjustment did not work as I figured. I had to decrease the calculated factor by 1/3 to make it accurate. The number is supposed to be the number of wheel revolutions in one kilometer, essentially. It could be the gearing down at the hub was not as expected.
The tachometer never did work properly. It showed about 5k with the engine, 139QMB, at idle. It pegged the tach quickly. The '4 cylinder' setting gave lower rpm indications, but was still significantly incorrect.
The same speedo is available from aliexpress for about 1/3 less than the DaRiver price.
....
HOW TO SET Color and adjustable parameters:
tire rotations/Km(or minute), Kph/mph, tach 2 or 4cyl, fuel gauge 2 or 3 wire
Backlight Color Selection:
press the button in the ODO(normal key ON) state and hold for 3 seconds to switch the backlight color(there are supposed to be 7). Display will rotate through the available colors. Release at desired color. You must be quick. Eschew utterings of disdain for the designer who could have slowed it down.
ODO / Trip Meter:
With the key ON, Short Press the button to switch between ODO and TRIP METER selections.
I think while displaying the TRIP METER, pressing and holding will reset, but my TRIP is at zero...
---
Following settings adjust for Tire diameter KPH/MPH TACH and FUEL GAUGE
To get into settings mode PRESS and HOLD the button and then switch the
ignition to ON.(key on) The screen displays P0000.
SETTING mode is ENABLED by adjusting to display: P6610
At this time, ONES place 0 will flash
LONG press until TENS place starts to flash,
SHORT PRESS once to make TENS place display 1 P0010
LONG PRESS press until HUNDREDS place flashes
SHORT PRESS 6 times to display 6. P0610
LONG PRESS until THOUSANDS place flashes,
SHORT PRESS 6 times to display 6, P6610
The screen shows P6610 FOR A FEW(really few) SECONDS which is the 'key'
to get into the SETTING mode and enable changes.
Screen will display 00466 from the factory(actually I forget) which is the factor
for wheel rpms per 1,000 meters. (1Km)
Adjusting speed accuracy for tire circumference:
The original instructions to set speedo ratio said to:
Do the ones, tens, hundreds to make the screen show 00466,
46.6HZ corresponds to front wheel RPMs at 60KM/H. The minutes cancel out
if you divide 1,000 meters by the diameter in meters.
Use the SHORT PRESS to change number,
Use the LONG PRESS to get to the next column.
.... Explanation
The number entered reflects the number of rotations of the tire/wheel
EVERY MINUTE at 60Kph, which conveniently obfuscated is the number or rotations in 1,000
meters. (60KPH==1K per minute==1,000M)
60 Kph == 60,000 meters/hr divided by 60 min per hr
60,000/60 = 1,000 meters per minute
1,000 meters divided by circumference equals tire revolutions
per KM == number_entered
calculate your circumference(Pi X Diameter) in meters.
Many cycle tire sizes listed here:
www.heidenautires.com/wp-con...t-18-Rev.1.pdf
An example front tire is a 130/60-13, circumference from the above PDF
table is 57.8" OR 1468mm or 1.468 meters. Divide 1,000 by your circumference in meters giving tire rotations. Approximately 681.2.
Enter 681 in the speedo for the given tire & wheel combination.
**************
682 did not work... read 10mph when going 15mph per GPS speedo.
So, 681* .66(2/3) should work. 454.36 revs(signals or TURNS of the cable for 1,000m
Using 454 as the factor number.
Once the final number is entered, LONG press to get to the
thousands column,hold until it flashes and release to exit the TIRE RPM setting
and get the display as noted below, indicating for KPH/MPH.
KPH/MPH setting
The screen displays 1-001, which means KpH,
To keep KPH do a short press to skip this step,
if you want to switch to MPH,
LONG PRESS press switch to get ones column blinking, and then
SHORT press to display 1-002 which indicates that you have set it to MPH.
LONG press to get to the next setting
3.Cylinder Setting for Tachometer
Use the SHORT/LONG procedure as in the above steps to set the ones digit.
SHORT press the button to make the screen to display 2-002, indicating that
this is a 2-cylinder.
SHORT press skip to the next step leaving as a 2 cylinder.
LONG press until ones place flash, then SHORT press to make the 2 a 4,
which means 4 cylinders. Confusing with 'lost spark' ignitions, but apparently
2 cyl works for cycles that fire on each revolution.(NOT)
SHORT press to step to the next setting.
4. Fuel gauge settings. Follow the above steps, SHORT press the until screen displays 3-002, which means that this is a 2-line oil meter, SHORT press to save all settings and exit, LONG press until ones place flash, and then LONG press to display 3-003, that means has switched to 3-line oil gauge.
{A two-line gauge had a HOT and a GROUND only. A THREE line has a HOT & GROUND and a lead that come from the cluster} I think many scooters are three line.
........ end of instrux & explain .....
I think the BK/R wire is for the tachometer. I connected it to the CDI wire that was running the ignition coil.
The W/BL wire is for the fuel gauge. If you have 3 wires, one increases as fuel level rises, the other decreases.(most that have 3 wire) Pick one, and touch it to the BL/W wire, turn the key to ON. If you have a half tank, good luck. Try the other wire, same way, and if you are not at a half tank it should indicate properly, or show the opposite condition.
I used short lengths of wire with alligator clips to temporarily connect to power & ground. One of the cluster light bulbs had switched power & ground, so it was convenient.
- tom
__________________
vertical and above ground - my daily goal