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B&S 5hp Help

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05-21-2026, 07:21 AM

Ducksrus

New Member

Join Date: Oct 2020

Location: Tennessee

Posts: 14

B&S 5hp Help

Have a '77, 5 hp, B&S with a pulsa jet carburetor. Replaced points w/magnetron coil & ran it 3 times & on last run it had a loud squeal followed by puff smoke then off. Believe the starter clutch miscued which caused the squeal as well as sheared shaft key. Replaced key, cleaned starter clutch, have cleaned carb many times, spark plug appears damp from fuel, pulled head & there was minor carbon on valves. No compression when testing, but not sure if this is typ w/a pulsa jet carb. Pressure does come through carb

Cannot get the engine to start again & not sure what to ck next. Suggestions appreciated

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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.

MTD Products, Inc. of Cleveland, Ohio purchased the Cub Cadet brand from International Harvester in 1981. Cub Cadet was held as a wholly owned subsidiary for many years following this acquisition, which allowed them to operate independently. Recently, MTD has taken a more aggressive role and integrated Cub Cadet into its other lines of power equipment.

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