It could be the vehicle speed sensor, the ECM or the TSM/TSSM.
The vehicle speed sensor (VSS) is powered and monitored
by the Electronic Control Module (ECM). The ECM processes
the vehicle speed signal and transmits this signal to the turn
signal module/turn signal security module (TSM/TSSM) and
speedometer through serial data.
NOTE
The vehicle speed sensor cannot be repaired. Replace the
unit if it fails.
SOURCE: 2003 Harley Davidson Sportster 1200 Custom Tachometer kit
The only idea that i can come up with is that you dont have a good ground..or the guage was bad when you bought it..i hope this..Keith
SOURCE: Unable to locate fuses on a 2001 Sportster 1200??
look behind the panel on the left side by the battery. pull the fuse holder down. realease the little clip and tug it downwards. It sits in grooves and the body of the fuse block just slides up and down.
SOURCE: 2001 Harley Sportster 1200 headlight not working.
ok youve done alot great job, now trace until you get voltage. follow that wire back until you get voltage in other words. if you have any kind of diagram your problems solution is sooo simple.
i am a technician btw.
SOURCE: 93 HD Sportster 1200 will not start!
Have you tried to bypass the starter button/switch? Use a heavy jumper wire to go between the starter terminal and the positive battery terminal. Turn the key to "On" position, make sure "Run/Off" switch is turn on. Make sure bike is in neutral. I've started guys bikes with coat hangers before when they lost had trouble with the starter button. If the bike starter turns over, you'll at least have a place to start looking for the issue. Also you said you checked the battery, what was the voltage?
Testimonial: "Thanks for the info. I tried your solutions, but bike will still not start. Do not see any pinched wires. When you push the start button the ignition circit pops and then resets. Any other suggestions would be great. Thanks for all your help phinfanls13"
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