Broken Tachometer 2021 Venom X20

gsx95 · 05-27-2023, 06:52 AM

Hey all, I just acquired a Venom X20 with 240 miles on it. The tachometer does not read at all on the instrument cluster (but the bars are visible when the tach runs through its startup routine). The left turn indicator light also doesn't work (but the turn signal does) The wiring and wire harnesses under the headlight and the right side of the bike all appear to be in good shape...any suggestions on what to do next? The kill switch also does not work...If anyone has any suggestions, I would greatly appreciate them! I've already learned a lot from this forum..

Megadan · 05-27-2023, 07:25 AM

I would start by confirming all of the harness and connectors are indeed intact. Loose or pushed out pins can cause issues like this. Sometimes easily found by visual and hands-on inspection, but also easy to find with a simple continuity test using a multimeter.

gsx95 · 05-27-2023, 08:30 AM

Just pulled out my old multimeter...it's analog with no continuity setting...time to buy a new one, lol!

gsx95 · 05-29-2023, 05:39 PM

Based on Megadan's advice, I fixed the tach wire, which appears to be broken somewhere inside the main harness. I just connected a wire from the speedo harness to where the blue/white wire exited the harness, and it seems to have fixed the tach and the kill switch. At least it seemed so when the bike ran, lol! It had an intermittent starting problem that now seems permanent. If I bypass the blue/red wire (two of them enter the harness at the headlight, only one exits) I can get the bike to crank but not fire up. When it did start before, it started right up fine...are there often multiple broken wires in these harnesses? It seems unlikely.

gsx95 · 06-02-2023, 06:23 PM

I finally got it running. I turns out there were a couple of broken wires...inside the harness. I took the harness off, cut it open, and traced all the wires. Turns out the tach/kill switch wire and an ignition wire were both broken. I also fixed my broken left turn signal indicator by pushing the turn signal wire further into the harness that plugs directly into the gauge cluster. Maybe this can help somebody in the future...

su98 · 03-07-2024, 03:52 PM

yep, my Neutral light quit. tracing thru the wire diagram, hit the "wire" with 12 v TA DA bulb ok (witout taking the headlight apart ) found a Moley connection that was
intermittent, just attached new m / f connection ---> fixed
Wiring can be such a headache

05-27-2023, 06:52 AM	#1
gsx95 Join Date: Jun 2020 Posts: 14	Broken Tachometer 2021 Venom X20 Hey all, I just acquired a Venom X20 with 240 miles on it. The tachometer does not read at all on the instrument cluster (but the bars are visible when the tach runs through its startup routine). The left turn indicator light also doesn't work (but the turn signal does) The wiring and wire harnesses under the headlight and the right side of the bike all appear to be in good shape...any suggestions on what to do next? The kill switch also does not work...If anyone has any suggestions, I would greatly appreciate them! I've already learned a lot from this forum..
	0

05-27-2023, 07:25 AM	#2
Megadan Join Date: Apr 2017 Location: Omaha, NE Posts: 8,110	I would start by confirming all of the harness and connectors are indeed intact. Loose or pushed out pins can cause issues like this. Sometimes easily found by visual and hands-on inspection, but also easy to find with a simple continuity test using a multimeter. __________________ Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124
	1

05-27-2023, 08:30 AM	#3
gsx95 Join Date: Jun 2020 Posts: 14	Just pulled out my old multimeter...it's analog with no continuity setting...time to buy a new one, lol!
	0

05-29-2023, 05:39 PM	#4
gsx95 Join Date: Jun 2020 Posts: 14	Based on Megadan's advice, I fixed the tach wire, which appears to be broken somewhere inside the main harness. I just connected a wire from the speedo harness to where the blue/white wire exited the harness, and it seems to have fixed the tach and the kill switch. At least it seemed so when the bike ran, lol! It had an intermittent starting problem that now seems permanent. If I bypass the blue/red wire (two of them enter the harness at the headlight, only one exits) I can get the bike to crank but not fire up. When it did start before, it started right up fine...are there often multiple broken wires in these harnesses? It seems unlikely.
	0

06-02-2023, 06:23 PM	#5
gsx95 Join Date: Jun 2020 Posts: 14	I finally got it running. I turns out there were a couple of broken wires...inside the harness. I took the harness off, cut it open, and traced all the wires. Turns out the tach/kill switch wire and an ignition wire were both broken. I also fixed my broken left turn signal indicator by pushing the turn signal wire further into the harness that plugs directly into the gauge cluster. Maybe this can help somebody in the future...
	1

03-07-2024, 03:52 PM	#6
su98 Join Date: Apr 2022 Location: Pittsburgh Posts: 59	yep, my Neutral light quit. tracing thru the wire diagram, hit the "wire" with 12 v TA DA bulb ok (witout taking the headlight apart ) found a Moley connection that was intermittent, just attached new m / f connection ---> fixed Wiring can be such a headache
	0