Join Date: Feb 2009
Location: Glendale, Arizona, USA
Model: 1987 GL1200 Interstate 290,000 miles
Hi Robert and welcome to the forum.
Does the bike act like it's overheating? Steaming? Overflows? If not, it could just be your gauge going bad, or the sending unit.
Or it could be a bad head gasket or plugged radiator. What kind of coolant are you using?
Also, running without the thermostat can actually cause the machine to run hotter.
Oh, and caps are considered "shouting" on this forum.
Why ain't we ridin'?