Posted by JDtractormanalb on August 22, 2009 at 03:08:24 from (203.54.200.79):
Hi, I have a John Deere 620 gas tractor. Iis hunting both on idle and at other throttle settings, the only time it wont hunt is when i have the choke half way out. I have disconnected the governer linkage at the carb and felt the movement from the governer when adjusting the cabi valve by hand, there is a bit of movment in the governer from when it want to open the throttle and wants to close it. im guessing the governer weight pins are worn. is there anything else i should check before i pull down the governer?
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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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