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GB - 25
TROUBLESHOOTING
PROBLEM PROBABLE CAUSE CORRECTION
Engine will not
start
1. Fuel tank empty or low.
2. Spark plug wire loose or off.
3. Engine/Blade control cable
detached, broken, or not
adjusted properly.
1. Check fuel level. Fill tank if
necessary.
2. Check connection.
3. Check cable. Adjust, repair
or replace as necessary.
Engine is
difficult to
restart
1. Mower clogged with grass. 1. Clear clippings from under
mower. (Allow the mower to
clear clippings before
shutting off engine.)
Cut is poor
1. Worn blade.
2. Too much grass is being
removed per cutting.
3. Grass is too wet.
4. Mowing speed is too fast.
1. Check blade (see CHECK
MOWER BLADE on
page 18).
2. Raise cutting height.
3. Allow grass to dry.
4. Mow slower.
Grass does
not disperse
evenly
1. Too much grass is being
removed per cutting.
2. Grass is too wet.
3. Mowing speed is too fast.
1. Raise cutting height.
2. Allow grass to dry.
3. Mow slower.
Mower does
not bag
clippings
1. Grass bag is overfilled.
2. Mulching plug is installed.
1. Empty grass bag and do not
allow it to overfill.
2. Remove mulching plug.
Wheel drive
does not
engage (Self-
Propelled
models)
1. Wheel drive control not
engaged.
2. Drive belt out of position.
3. Drive belt worn or damaged.
4. Rear wheels at different
cutting heights.
5. Idler spring detached.
6. Wheel drive control cable
detached or broken.
7. Friction disc not adjusted
properly or damaged.
8. Bearings damaged.
9. Debris in gear set.
1. Engage wheel drive control.
2. Check drive belt. Adjust as
necessary (see CHECK
DRIVE BELT on page 19).
3. Replace belt (see CHECK
DRIVE BELT on page 19).
4. Adjust rear wheels to same
cutting height (see CUTTING
HEIGHT ADJUSTMENT on
page 11).
5. Attach idler spring to notch
on idler arm. Contact your
Dealer.
6. Check wheel drive control
cable. Adjust or replace as
needed. See CHECK
WHEEL DRIVE CONTROL
on page 18.
7. Contact your Dealer.
8. Contact your Dealer.
9. Contact your Dealer.