K.Campbell
Member
I have a tractor that was running great for the last five years, it had a total rebuild, pistons, sleeves, rings and the whole works or so I ve been told. Recently it s developed a miss, the first thing I checked was compression, #1 was at 110 lbs, #2 was 135lbs #3 was 140 and #4 was 150 anyhow, with that being said, there is no smoke, spark plugs look perfect.. it just has an pronounced miss. I went back and added oil to the #1 cylinder and then took another compression check, it went from 110 to 155 with oil added. Anyhow, even tho no I knew this, trudged on. The tractor would die under a load erratically. I figured it was a fuel issue, it was.. I put a new fuel line, sediment bowl was missing the screen on stand pipe and carb was missing screen at elbow. All that fixed it runs and doesn t die, but still has that stupid miss. I replaced cap, rotor, wires and plugs. While running I pulled number one plug wire off and it did drop a little.. but not like the rest of the wires did when I pulled them. Also it has petronix ignition, whoever put the new ignition on had to cut the dust cover the magnet seems to stick up to high on distributor shaft. The shaft has no wobble. The carb has been cleaned, air breather totally cleaned. All connections have been cleaned as well. I even put a brand new 12 volt coil on it for good measure. I m thinking it s a valve issue, I m going to investigate that this week. Also will check timing as well. Any other suggestions? Sorry this is so long winded..