Tempature gauge

[76gl1000]

I put a new thermostat and new tempature sensor on my gl100 water pump works can watch watch suck down in radiator flushed radiator but with bike running for about 5 minutes the gauge goes to hot but motor ain't hot and radiator ain't hot has good power for a single carb bike that someone switched to any one have a idea what's going on thanks

[Rambozo]

Bad gauge sending unit? Test in hot water.

[nwkwinger]

How long have you run the engine after changing the thermostat and sending unit? If it's not very long, you may still have a trapped air bubble in the cooling system. The reason that your gauge will read hot is that there isn't any coolant in this location to remove the heat from your cylinder(s). If your thermostat doesn't open, the air bubble will stay trapped in your engine. Since you said that your radiator isn't hot, I would guess that your thermostat hasn't opened yet. I think you need to run your engine longer. Maybe even take the bike for a short ride for 5 or 10 minutes.

[76gl1000]

I ran the bike for 45 minutes and did go for a 2 mile ride and by that time gauge was out of site

[dingdong]

Was the bike doing the same before you installed new units?

[76gl1000]

Yes even when I took thermostat out and ran it with no thermostat and old temp sensor

[DenverWinger]

Sounds like 7volt regulator might be putting out too many volts. This powers the fuel and temp gauges.

[76gl1000]

Wheres it located at

[WingAdmin]

Wheres it located at

Underneath the left shelter access panel. You can get replacements here, if that's the problem.

7 Volt Regulator Location

[76gl1000]

Thanks u guys for info put a new 7volt regulator and gauges are working now I can sell it thanks again