It may take a few tries, it may take more than a few!Ĭarburetor settings can be tricky- start at one full turn open and see what the exhaust looks like- if its black, your getting too much fuel and need to screw the needle in until it starts to miss, then back off a bit until it runs smooth with little smoke. You are trying to get the magneto to trip at TDC, or ever-so-slightly before. If it tripped after TDC, slide the mechanism toward the head, tighten the bolt that holds it tight and see where it sparks now. If your EK tripped before it got to TDC, loosen and slide the trip mechanism located on the pushrod below it towards the flywheels and try again. SLOWLY turn your engine over until it comes up on Top Dead Center (TDC) under compression by watching the connecting rod big end on the crankshaft. Remove your sparkplug and let it hang from the EK. The hercules XK is a throttle governed engine so it has a different firing system than a "hit & miss" type engine. Re: Hercules/Economy 4hp XK engine in reply to cork babcock, 12-24-2020 08:52:16
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