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ATV/Motorcycle Computer

ACE-4XXX-XX User Manual

10R-029702

PANEL DESCRIPTIONS

1. Tachometer Scale

2. Needle Tachometer

3. 1

st

 row: Current & 

    Max.Speedometer

4. 2

nd

5. Temperature 1 &2

8. RPM Warning Indicator

9. 12/24 Hour Clock

10. Bar Fuel gauge

11. LED indicators  

12. Gear indicators  

FUNCTIONS

RPM: Digital Tachometer 

1. It displays digital tachometer up to 19,900RPM.

     Coil Signal. 

Shift Warning RPM

MAX RPM: Maximum Tachometer

Km/H or MPH: Speedometer

1. Displays speed meter up to 399.9 Km/H or 248.5 MPH. 

3. The speed can be less than 399.9 KM/H in case the setup is using 

     wheel circumference at 1277mm.    

MAX: Maximum Speed Meter

AVG: Average Speed Meter

It calculates average speed from last RESET. The AVG is calculated

from TRIP be divided by RT.

TRIP 1&2: Trip Meter 1&2

as bike/vehicle is moving.

ODO: Odometer

1. ODO accumulates total distance traveled. 

     that it stored in memory and cannot be reset.

RT: Riding Timer

TT: Total Riding Timer

2. TT data is stored in memory, and couldn’t be reset.  

 

     

: 12/24 hour Clock

   

FEATURES

Aluminum CNC main unit built-in 4-6 LED indicators for different 

Displays needle tachometer, speedometer, clock, Coolant or air 

Digital tachometer is up to 19,900rpm regardless of the needle 

tachometer scale

Allows end user to adjust his/her prefer backlight color.

 speed sensors.

Allows end user to adjust odometer when the odometer is less 

than 30km / 18.6 miles

meter input resistance, as well as “fuel gauge off” mode. 

Includes bracket, RPM sensing wire, speed sensor, thermo sensor, 

1

2

7

6

8

9

10

11

3

5

4

12

sensor

sensor

MAX 8mm

MAX 8mm

Specific Hall sensors:

The sensor such as Honda CRF, XR….etc. can replace original sensor cable 

Hall Effective Speed Sensor and Magnet: 

     holder.

    and the sensor can be aligned to the magnet. 

3. Align the center of the magnet to center of side face of the sensor. 

4. Make sure the gap between the magnet and the sensor is within 5mm.

Coil

CDI

RPM Input ,

Either one

2-5 Tuns

INSTALLATION & PARTS

RPM sensor mounting: 

3. The RPM circuit is designed for most bikes, however some bikes’ 

     signal is too strong if the RPM looks like much more than actual 

     RPM and unstable, please serial connect the included 1M Ohm 

     resistor in series to solve it. 

Speed Sensor:

ACEWELL has several speed sensors; the unit may include one of them. 

If the model is intended to be connected to a gearbox electronic speed 

output to obtain the speed reading, no speed sensor will be included.  

Reed Speed Sensor and Magnet: 

2. Align the center of the magnet to either of the sensor marking lines 

    or the side of the sensor. The magnet must not travel down the 

    body of the sensor

4. Make sure the gap between the magnet and the sensor is within 8mm. 

Main Unit Installation:

Rubber

Washer

Fixing Screw Nut

Bolt

Main Unit Mounting

BUTTON OPERATIONS

MODE Button

Mode

Mode

Mode

Mode

Mode

Mode

Mode

Mode

Mode

LAP: Lap Timer

Fuel Bar & Resistor Value

Bars

-510

-250

-100

510r

250r

100r

7

6

5

4

3

2

1

0-Flash

0-10

11-20

21-35

36-45

46-60

61-75

76-90

91-100

0-25

26-50

51-85

86-110

111-150

151-200

201-230

231-250

0-50

51-100

101-180

181-230

231-300

301-380

381-460

461-510

100-90

89-75

74-60

59-45

44-35

34-20

19-10

9-0

250-230

229-200

199-150

149-110

109-85

84-50

49-25

24-0

510-460

459-380

379-300

299-230

229-180

179-100

99-50

49-0

TEMP 1: Engine Temperature Meter 

1. It displays -L-  C or -L- Fwhen temperature is lower than 50 C or 122 F, 

     and displays -H-  C or –H- F when temperature is over 180 C or 356 F. 

2. The LCD screen flashes the digits of temperature when the thermo 

     sensor detects temperature higher than the maximum preset 

     temperature. 

TEMP 2: Air Temperature 

It displays air temperature from  -20 C (-4 F ) to+60 C (+140 F).

MAX TEMP 1: Maximum Temperature  

Volt: Digital Voltage Gauge

 

      : Fuel Gauge 

 

1. Has 7 bars to indicate how much fuel remains.

2. Built-in 100, 250, 510Ohm, oFF, -100, -250 and -510 Ohm fuel sender 

    resistance, the fuel bars will disappear when you select “oFF” mode.    

3. The full bars are low resistance and empty bar is high resistance for 

    100, 250 and 510ohm; -100, -250 and -510 ohm are the inverse. 

Thermo Sensor and Sensor Tube: 

1. The unit includes a water temperature sensor; you have to purchase 

     a suitable water pipe temperature sensor tube to install the sensor easily. 

2. Cut the water pipe, insert the temperature tube into the pipe and 

3. Screw the sensor into the tube. 

ACE-43XX-XX : 6,000 rpm

 

ACE-44XX-XX : 9,000 rpm 
ACE-45XX-XX : 12,000 rpm
ACE-46XX-XX : 15,000 rpm

English 

英文

Thanks for purchasing the ATV/Motorcycle computer; this manual is specifically designed for ACE-4XXX-XX series. 

Different series have different needle tachometer scales, each series has different models, each model has different LED indicators. 

You may find that the photo has a set of LED indicators different from your computer, the photo is for reference only. 

SPECIFICATIONS

Function

Specifications

Simbolo

Needle Tachometer

ACE-43XX-XX 6,000rpm

ACE-44XX-XX 9,000rpm

Total Riding Time

Digital Tachometer 

Riding timer

Max. Temperature

Voltage Gauge

V

rpm

12/24 Hour Clock

RT

Bar-Fuel Gauge*

1, 2,…8 gears and off mode

Speedometer

Km/h 
/ MPH

Maximum speed

MAX

Average speed

AVG

Coolant temperature

TEMP 1

Air temperature

TEMP 2
MAX 
TEMP 1

Trip meter 1&2

TRIP 1&2

Odometer

ODO

LAP
Gear indicators 

100-19,900rpm

0-999999H

0-99H59`59``

100Ω, 250Ω, 500Ω options or 

1-7 Bar-graphic

8.0-25.0 Volt

AM/PM 0:00`-11H59`/23H59`

2.4-399.9 Km/h (248.5 MPH)

2.4-399.9 Km/h (248.5 MPH)
2.4-399.9 Km/h (248.5 MPH)
+50 C-180 C / 122 C-356 C

<50 C display -L-,  >180 C display -H
-20 C-+60 C / -4 F-140 F

+50 C-180 C / 122 F-356 F

<50 C display -L-,  >180 C display -H-
0.0-999.9 KM /624.9Miles
0.0 - 999999 KM, 0.0-624999 Miles

50 laps

Lap

TT

ACE-45XX-XX 12,000rpm

ACE-46XX-XX 15,000rpm

Wire Remote Control Switch Installation:

1. Install the switch arm on handlebar. 

2. Install the switch box to one of 3 fixing holes and adjust switch box to a 

     suitable angle. 

3. Plug the switch box connector into the main unit matching connector. 

Different series with different needle 

tachometer scales are as bellows:

Different models have different LED indicators, each indicator symbol means 

Main-beam headlamp/Blue

Hazard Warning/ Red
Parking/Green

Engine oil / Red
Neutral Gear /Green
Reverse Gear /Red
Drive Gear /Green
Engine coolant temperature/ Red

P

D

R

N

Rear fog lamp/Amber

Flash Trailer/Green

Engine in out of use/ Red

as below:

         

: Gear Indicator

1. The gear indicator calculates gear by comparing speed and RPM then 

    displays gear position. 

2. User has to train the gear indicator before use it.

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