Troy-Bilt TB4SC - Troubleshooting; Engine Will Not Start, Idle or Accelerate; Engine Lacks Power or Stalls; Specifications

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TROUBLESHOOTING
PROBLEM SOLUTION
ENGINE WILL NOT START, IDLE OR ACCELERATE
Empty fuel tank Fill fuel tank with fuel
Primer bulb wasn't pressed enough Slowly press primer bulb 10 times
Old fuel Drain gas tank and add fresh fuel
Fouled spark plug Replace or clean the spark plug
Air fi lter is plugged Replace or clean the air fi lter
Improper idle speed
Adjust according to the Idle Speed
Adjustments section.
ENGINE LACKS POWER OR STALLS
Old fuel Drain gas tank and add fresh fuel
Fouled spark plug Replace or clean the spark plug
SPECIFICATIONS
Engine Type ............................................................................................................ Air-Cooled, 4-Cycle
Displacement ................................................................................................................................ 25 cc
Operating RPM ........................................................................................................................7,000 rpm
Idle Speed RPM ........................................................................................................ 3,200 – 4,400 rpm
Valve clearance ................................................................................ 0.003–0.006 in. (0.076–0.152 mm)
Spark Plug Gap .................................................................................................. 0.025 inch (0.635 mm)
Lubrication ............................................................................................................................. SAE 30 Oil
Crankcase Oil Capacity .............................................................................................. 2.03 fl .oz. (60 ml)
Fuel ......................................................................................................................................... Unleaded
Fuel Tank Capacity ............................................................................................................ 14 oz (414 ml)
Approximate Unit Weight (No fuel) ................................................................................... 11 lbs. (5 kg)
ENGINE*
* All specifi cations are based on the latest product information available at the time of printing. We
reserve the right to make changes at any time without notice.