Briggs & Stratton CE8069 manual Equipment Affecting Engine Operation, Oil Gard Systems, Vibration

EQUIPMENT AFFECTING ENGINE OPERATION

Frequently, what appears to be a problem with engine operation, such as hard starting or vibration, may be the fault of the equipment rather than the engine itself. Below are some common symptoms and potential equipment- related sources.

Hard Starting or Will Not Start

1.Check for a loose drive belt or a loose blade, which will counteract engine cranking effort.

2.Check for parasitic load; disengage equipment controls before starting.

3.Check remote throttle/choke control for proper adjustment.

4.Check interlock system for shorted wires, loose or corroded connections, or defective modules or switches.

OIL GARD SYSTEMS

Engine Will Not Start, On/Off Switch Light Flashes

1.Check engine oil level. If oil is between ADD and FULL, go to next step. If low, add oil to bring to FULL mark on dipstick. If engine starts and runs, problem corrected.

2.Disconnect wire from module to plug and terminal assembly on crankcase cover. Use Digital Multimeter #19464 to check resistance.

3.Rotate selector to (Ohms) position.

4.Insert RED test lead into the V Ω receptacle in the meter.

5.Insert BLACK test lead (B) into COM receptacle.

6.Connect either test lead to plug and terminal.

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Engine Won’t Stop

1.Check equipment stop switch.

2.Check for loose or disconnected equipment stop switch wire.

3.Check engine ground wire harness.

Vibration

1.Check for bent or out-of-balance cutter blades.

2.Check for loose, worn, or damaged drive belts and pulleys.

3.Check for loose mounting bolts.

7.Connect other test lead to crankcase cover (Figure 41). If meter reads Zero resistance, replace sensor in crankcase cover. If meter reads some resistance, go to next step.

Figure 41

8.With module wire disconnected and not touching ground, try to start the engine. If engine starts, replace module. If engine does not start, check Oil Gard wiring for shorts to ground. Repair as needed.

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