Dead Cylinder

[Rick Parker]

Suggestion: Try this before you drop the cash for new ignition parts. On a cold engine, drain the fuel from the suspect carb. remove the idle and main jet holders. Spray some carb cleaner in the holes where the jets screw into. Then disassemble the jets and holders and spray THEM with carb cleaner, pay close attention to the small hole in the end of the idle jet. THEN when you reassemble the idle jet in its holder do not fully bottom the parts out when you insert one in the other. Then mark the taperd face of the idle jet with a felt marker or machinists dye, do the same with the tapered face of the main jet. When you screw them into the carb body the jets will first bottom out in the wells, marking the faces of the jets, pull them out and inspect the markings. They must seal in the bottom of the wells or fuel will not flow correctly. Sometimes over the winter some of the fuel can go bad and plug very small passageways. Check it out and report back.

[CobraEd]

Did u check the plug wire? Put an ohm meter on it, it could be open.


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[DanEC]

Originally Posted by CobraEd

Did u check the plug wire? Put an ohm meter on it, it could be open.


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Yeah - I would double check your plug wires. I had a problem like this once and it ended up being a plug wire with intermittent connectivity. It was basically broken at the plug boot. Sometimes it would fire and most of the time it wouldn't and I had a miss. Everytime I shorted out the wire to the block to check RPM drop it would manage to have fire. However, I'm a big fan of Taylor wires and I would be surprised at one of them going bad.