BBM ZT ELITE MODELS ZERO-TURN MOWER. Manual - part 6

PAGE  21

Under the rear of the mower, you will find the 
two levers shown in the image.  These bypass 
levers serve as a neutral for moving the mower 
while the engine is not running.  Pull the levers 
out and lock them into place to activate the 
bypass.

When adjusting the tracking on the mower, the 
length of the pushrods can be changed by screwing 
the pivot joint in or out on the ends of the rods.  
Shortening the overall length of the rod slows the 
pump down.  Lengthening the rod will increase the 
speed of the pump.  

Neutral Bars

Right Push Rod

Left Push Rod

PAGE 22

SECTION 2: DRIVE BELT

Shown on the right is a typical pump belt tensioner 
for your ZT model mower. Tightening the two ¾ 
jam nuts on the right side will increase the belt 
tension on all models.

 

The belt tension should be set between 60-65 lbs.  

Use a belt tension gauge to ensure the proper 
tension. Your dealer or service center will have a 
belt tension gauge or you can buy one (Part 
Number 041-9999-00).

PAGE  23

SECTION 3: ENGINE

Kohler KT

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 dipstick 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.

Oil Dipstick

Oil Filter

Fuel Filter

Oil Drain

Spark Plugs

Air Filter

PAGE 24

6) Fill crankcase with approximately 2 quarts of new oil.

Level should be at 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.