Dakota Digital BD-140 User Manual

MAN# 650272:C
BD-140
Big Dog digital speedometer
km/h
MPH
Mounting
Remove the speedometer cup from the handle bars. Remove the screw on the bottom of the cup to separate the
front ring from the cup. Unplug the factory 3-pin harness. Remove the two nuts from the back of the speedometer to
release it from the front ring. Install the new speedometer into the front ring and use the original clamp and the supplied
thumb nuts to secure it. Connect factory 3-pin harness into the new speedometer. Reinstall the front ring into the cup and
replace the screw into the bottom of the cup. Reinstall the cup onto the handle bars.
Note: On some models with tank mounted speedometer it may be necessary to trim the mounting studs on the back of the
gauge for proper clearance and fit.
Wiring
The three pin plug on the back of the gauge mates into the factory speedometer wiring harness. Simply unplug the
stock gauge and plug in the new Dakota Digital BD-140.
Black - Ground
Green - Speed signal in
Red - Power +12V key on
Speed Readout
Speed Unit
Message Center
(Odometer,Trip,etc.)
Function Switch
IMPORTANT NOTE! This gauge has an odometer preset option that is only available for the first
100 miles (160km) of operation. See “preset odometer” for instructions.

Dakota Digital BD-140 Specifications

General

Brand	Dakota Digital
Model	BD-140
Category	Automobile Electronics
Language	English

Summary

Installation

Mounting Instructions

Steps to physically install the speedometer on handlebars.

Wiring Connections

Describes the function of each wire in the speedometer harness.

Speedometer Operation and Setup

Function Switch Usage

How to navigate menus and reset displays using the function switch.

Speedometer Setup Menu

Accessing settings for units, calibration, dimming, and service.

Speed Calibration Methods

Explains Auto Cal and Adjust calibration procedures for accuracy.

Advanced Features and Presets

Night Dimming Control

Adjusts display brightness for nighttime viewing.

Service Interval Setup

Configures the countdown mile meter for service reminders.

Odometer Preset

Allows setting the odometer within the first 100 miles of operation.

Troubleshooting and Support

Troubleshooting Guide

Lists common problems and their solutions for gauge operation.

Service and Repair Policy

Information on sending units for repair and technical consultation.

Warranty Information

Details the 24-month warranty terms and conditions.