Quote:
Originally Posted by NeighborsComplaint
Blow-by smells like oil.
A rich mixture will smell like gas, the emissions are unburnt hydrocarbons. Starting may require holding your foot to the floor while cranking to get enough air to fire.
A lean mixture send excessive amounts of NOx out the exhaust. It smells like insectice and burns the eyes.
Pull a sparkplug under idle and at cruise (shift to neutral, cut the ignition and coast to a spot where you can pull a plug without idling the engine again.
Rich = black and sooty deposits, Normal = brown to tan tip, Lean = Very light tan to white/gray tip.
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Good input, thank you. Based on this, I'd guess blow-by or lean.
If it's blow-by, I understand a leak-down test might tell me that. The engine hasn't run on the road in almost 20 years and I've done enough to it to mess it up... flooding, coolant leak into crankcase, etc... so the advice to leave the carb alone until I can drive it is good.
Mike