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“In order to run, an engine must have spark, fuel, and at least 60 psi of compression. One or more of these prerequisites is lacking if a cold engine refuses to start after three or four pulls on the starter cord.”
― Paul K. Dempsey, Small Gas Engine Repair
“Horsepower is the measure of work done over time. James Watt coined the terms in 1782 as a way of describing the utility of his steam engines. Watt observed that a mine pony, tethered to a capstan, lifted 550 lb of coal 1 ft. every second or 33,000 lb in 1 minute. A 1-horsepower engine would accomplish the same amount of work over the same time period. Expressed metrically 1 hp = 745 kW (kilowatt).”
― Paul K. Dempsey, Small Gas Engine Repair
“Yet, for many owners these little engines are contrivances from hell, cantankerous, difficult to start, and impossible to fix.”
― Paul K. Dempsey, Two-Stroke Engine Repair and Maintenance

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