BBM OUTLAW XP MODELS ZERO-TURN MOWER. Manual - part 8

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The air cleaner is the engine’s only defense 
against damaging foreign particles. It is very 
important that the air cleaner element is inspected 
prior to each use. Remove the element and tap its 
sides in order to remove debris. Do not blow the 
filter out using compressed air. Doing so will 
greatly reduce the air cleaner’s effectiveness. 
Replace yearly; more often in dusty environments. 
Adhering to these practices will help prevent loss 
of power and premature engine failure. 

3.3 Changing the air cleaner: 

1) Unlock the air cleaner cover and

remove to access the air cleaner.

2) Remove the outer and inner air filters.

3) Replace inner and outer filter then

place the inner filter into the air intake
followed by fitting the outer filter over
the inner filter.

4) Place cap back on and close the

latches.

993 Vanguard Air Cleaner Component List 

A 

Latches 

B 

Cap 

C 

Outer Air Filter 

D 

Inner Air Filter 

E 

Air Intake 

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3.4 Changing the spark plugs and checking the spark plug gap: 

1) Remove the wire on the spark plug and use a

5/8" socket to remove the spark plug.

2) Check the gap on the spark plug to verify that

it is 0.03 in using a feeler gauge.

3) If the spark plug is worn, overheated, wet, or

carbon fouled replace the spark plug.

4) Install the plug into cylinder head and torque

to 20ft.-lbs. Be careful not to overtighten the

spark plug.

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Yamaha 824cc EFI

This machine has an oil drain hose installed on 

the engine to allow for easier oil changes. Bad 

Boy  recommends that the oil and filter be 

changed after the initial 8 hrs of use, and at 

intervals of 50 usage hours or yearly, whichever 

occurs first after that. The oil capacity is 2 quarts. 

Bad Boy 10W-30 synthetic blend engine oil is 

recommended for maximum protection. 

3.1 Changing your engine oil and oil filter:

1)

Remove oil fill cap and open oil drain. Allow

oil to completely drain. (Make sure to have

an oil pan ready to capture old oil and

properly dispose old oil.)

2)

The oil filter is located on the right side of the

engine. Clean area around oil filter. Place a

container under the oil filter to capture any oil

and remove filter. Wipe off mounting surface

and reinstall drain plug. Torque to 10 ft.*lb.

3)

Place new filter in shallow pan with open end

up. Fill with new oil until oil reaches the

bottom of the threads. Allow 2 minutes for oil

to be absorbed by filter material.

4)

Apply a thin film of clean oil to rubber gasket

on new filter.

5)

Refer to instructions on oil filter for proper

installation.

6)

Fill crankcase with approximately 2 quarts of

new oil. Level should top of indicator on

dipstick.

7)

Reinstall oil fill/dipstick and tighten securely.

8)

Start engine, check for oil leaks. Stop

Engine, correct oil leaks. Recheck oil level

9)

Dispose of used oil and filter in accordance

with local ordinances.

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The fuel filter is located in the fuel line about 12˝ from 
the fuel pump on the side of the engine. Replace the 
filter yearly. Prior to the removal of the old filter, note 
the direction of fuel flow as indicated on the filter. 
Have towels readily available in order to quickly 
remove any fuel leakage. Always use new hose 
clamps and ensure the security of the new filter by 
lightly pulling on each hose. Always perform 
maintenance outdoors or in a well ventilated area. Do 
not smoke or allow any open flames in the vicinity of 
any maintenance activities. 

3.2 Changing your fuel filter:

1) Locate your fuel filter and mark the

direction it is facing.

2) Clamp each side of the fuel filter to

minimize any gas spills.

3) Remove the clips from each side of the

fuel filter and remove the fuel filter.

4) Place the new fuel filter in the same

direction as the old one.