I also have a MF135 and have had to replace the original mechanical voltage regulator with an electronic one. The mechanical regulator had a resistor on the 4th terminal that cut the voltage to approximately 4 volts for the fuel gauge. You cannot just hook the fuel gauge to 12 volts as it will peg the gauge. The new electronic regulator leaves that resistor out. I simply got an adjustable potentiometer (0 - 10K) and put it in line from the 4th terminal to the gauge. Empty your fuel tank and fill it with 5 gallons which is half full and adjust the potentiometer until it reads half full. There are sites that sell the mechanical voltage regulator but they or $95. The potentiometer is way cheaper.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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