It depends.On my Hunter Legend 37.5, there is no fuel gauge topside on the engine panel in the cockpit...only the RPM gauge. On my Catalina, there were were 4 gauges....temp, fuel, voltage and RPM.
Does Hunter put a fuel gauge on the fuel tank down below? I have yet to look at mine.
The replacement for Halon is HFC-227, "1,1,1,2,3,3,3-Heptafluoropropane." This is what Fireboy is using now.The original was probably Halon or one of the other agents you can't get anymore. The EPA has made things like this a lot more difficult, they keep changing the rules. You can't use dry chemical, blowing that on a running engine might do more damaged than the fire. CO2 is probably your best bet, and they can be had with automatic nozzles.
SEA-FIRE FM-200 tied into the ignition system as shown below.Does anyone have a recommendation for an automatic fire extinguisher for the engine compartment for an H41?..............