Problem: Engine will not turnover or start.
Visually check wiring & replace broken
or frayed wires. Tighten loose
connections.
Wiring loose or broken.
See authorized service dealer.Solenoid or starter motor faulty.
Replace as needed. See authorized
service dealer.
Safety interlock switch faulty
Clean and gap or replace. See engine
manual.
Spark plug(s) faulty, fouled or
incorrectly gapped.
Drain fuel and replace with fresh fuel.Water in fuel.
Drain fuel and replace with fresh fuel.Gas is old or stale.
See authorized service dealer.Malfunction in fuel injection system.
Problem: Engine starts hard or runs poorly.
RemedyCause
1.) Clean air filter. 2.) Carburated
Models: Check choke adjustment.
Fuel Injected Models: See authorized
dealer.
Fuel mixture too rich.
Clean and gap or replace. See engine
manual.
Spark plug(s) faulty, fouled or
incorrectly gapped.
Problem: Engine knocks.
RemedyCause
Check / Add oil as required.Low oil level.
See engine manual.Using wrong grade oil.
Problem: Excessive oil consumption.
RemedyCause
See engine manual.Using wrong weight oil.
Drain excess oilToo much oil in crankcase.
Problem: Engine exhaust is black.
RemedyCause
Replace air filter. See engine manual.Dirty air filter.
Move choke control to open position.Engine choke control is in closed
position.
Problem: Malfunction Indicator Lamp (M.I.L.) is flashing
(Fuel Injected Models only).
RemedyCause
See your authorized service dealer.Problem with the fuel injection system.
Problem: Engine runs but mower will not drive.
RemedyCause
Turn valves to "run" position.Transmission release valve(s) in
"bypass" position.
See
Transmission Drive Belt
Replacement
.
Belt is broken.
See problem and cause below.Drive belt slips.
See authorized service dealer.Brake is not fully released.
Problem: Unit drive belt slips.
RemedyCause
Clean as required.Pulleys or belt greasy or oily.
Adjust spring tension. See
Transmission Drive Belt Replacement
.
Tension too loose
Problem: Unit drive belt slips.
Replace belt.Belt stretched or worn
Problem: Brake will not hold.
RemedyCause
See Parking Brake Adjustment.Brake is incorrectly adjusted.
Replace with new pads.Brake pads worn.
Problem: Unit steers or handles poorly.
RemedyCause
Check and tighten any loose
connections.
Steering linkage is loose.
See Checking Tire PressuresImproper tire inflation
Troubleshooting the Mower
Problem: Mower will not raise.
RemedyCause
See authorized dealer.Lift linkage not properly attached or
damaged.
Problem: Engine stalls easily with mower engaged.
RemedyCause
Set to full throttle.Engine speed to slow.
Decrease ground speed.Ground speed too fast.
Increase the cutting height.Cutting height set too low.
Cut grass with discharge pointing
towards previously cut area.
Discharge chute jamming with cut
grass.
Problem: Excessive mower vibration.
RemedyCause
Tighten to 70 ft.lbs (94 Nm)Blade mounting bolts are loose.
Check and replace as necessary.Mower blades, arbors, or pulleys are
bent.
Remove, sharpen, and balance blades.
See Servicing the Mower Blades.
Mower blades are out of balance.
Reinstall belt correctly.Belt installed incorrectly.
Problem: Excessive belt wear or breakage.
RemedyCause
Repair or replace.Bent or rough pulleys.
Replace with correct belt.Using incorrect belt.
Adjust to correct tension.Incorrect belt tension.
Problem: Drive belt slips or fails to drive.
RemedyCause
Adjust to correct tension.Incorrect belt tension.
Replace with new belt.Drive belt is broken.
Problem: Mower does not engage.
RemedyCause
Locate & repair damaged wire.Electrical wiring damage.
Recharge battery and check alternator.
See Battery Service.
Battery voltage too low.
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