Lately, I’ve been running in temperatures around 70f and only seeing a max engine temperature of around 125f after a 15min session. I have the radiator “flap” down the whole time. Should I tape up some of radiator to get the engine temps up around 150f? Will this increase the engine power output?
Wondering if something is amiss with your engine if your gauge is functioning properly. Assuming that you are running on a sprint track. What was the ambient temperature and what was your max RPMs? What plug are your running and how long has it been since the engine was serviced. What did you have as a main jet and is this an EVO motor.
Road racing, we’d start off with a third of the radiator taped off and later with the flap down for a lap or two. After that, it was tape off or flap open. It’s as if your engine was not working hard enough, the plug was too cold or the carb was too rich. Do you have the thermostat still in the head?