Bad Boy MZ MAGNUM Owner's, Service & Parts Manual
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Bad Boy MZ MAGNUM Owner's, Service & Parts Manual

Zero-turn mower
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MZ MAGNUM
ZERO-TURN MOWER
OWNER'S, SERVICE & PARTS MANUAL
For additional information, please see us at
www.badboymowers.com
MODEL
Bad Boy, Inc.
102 Industrial Drive
Batesville, Arkansas 72501
(870) 698-0090
©2013 11-12

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Questions and answers

Thomas
April 24, 2025

Neutral bar placement on Bad Boy MZ Magnum. I recently changed my drive belt. While doing so I disengage and removed the neutral bars from the transaxle. I am having a hard time figuring out where to reattach the neutral bars. Any help would be greatly appreciated.

1
steve
March 20, 2025

how many quarts of oil does a mz magnum bad boy with a 726cc motor hold(Kawasaki )

0
1 comments:
Mr. Anderson
March 20, 2025

The Bad Boy MZ Magnum with a 726cc Kawasaki engine uses 10W30 motor oil, and the manual specifies 2 quarts of motor oil.

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Summary of Contents for Bad Boy MZ MAGNUM

  • Page 1 MZ MAGNUM MODEL ZERO-TURN MOWER OWNER’S, SERVICE & PARTS MANUAL For additional information, please see us at www.badboymowers.com Bad Boy, Inc. 102 Industrial Drive Batesville, Arkansas 72501 (870) 698-0090 ©2013 11-12...
  • Page 2 TABLE OF CONTENTS Basic Information ................... Section 1 (pages 3, 4) Bad Boy Safety Guidelines ................Section 2 (pages 5, 6) Operation ....................... Section 3 (pages 6, 7) Maintenance ......................Section 4 (page 7) Storage and Transportation ................. Section 5 (page 8) Troubleshooting and FAQ ................
  • Page 3 This manual applies to the following equipment: Bad Boy MZ MAGNUM Series MZ Magnum 48˝ 726cc Kawasaki MZ Magnum 54˝ 726cc Kawasaki MZ Magnum 54˝ 27 hp Briggs COMMONLY USED ITEMS AND PART NUMBERS 48˝ MZ Blade Hi-Lift Fusion Gator Blade...

  • Page 4: Warranty Registration

    1. Correct part number 2. Correct serial number All warranty repair and service must be handled through your authorized Bad Boy Mowers dealer. To locate the nearest dealer, go to our website and click on Locate a Dealer. PAGE 4...

  • Page 5: Safety Precautions

    SECTION 2: MOWER SAFETY GUIDELINES Never allow untrained people to operate this machine. It is the owner’s responsibility to get training and see to it that anyone who has permission to use your machine receives the proper training. Do not mow around people. The factory discharge chute is designed to deflect debris downward, but it could be possible for debris to be thrown in a way that can cause damage to people or property.
  • Page 6 2.23 Safety warning decals are located on the mower and should always be observed and followed. 2.24 Never operate the mower with the discharge chute open. 2.25 Prevent Fires—Remove grass and debris from engine compartment and muffler area, before and after operating machine, especially after mowing or mulching in dry conditions. 2.26 Do not store machine near open flame or source of ignition, such as a water heater or furnace.
  • Page 7 3.11 Start slowly and build your skill level. Have ample practice before using the machine at full capabilities. 3.12 Be comfortable with machine before engaging blades. Know what each component controls before using machine. 3.13 Your mower will perform differently on an incline /decline. Be cautious, slow down, and do not make any sudden jerking movements with control arms.
  • Page 8 SECTION 5: MOWER STORAGE & TRANSPORTATION Keep machine from collecting debris by storing in a covered area while not in use. 5.2 Fuel can harm your machine if left for more than 30 days without changing, especially if the fuel contains ethanol. Never use fuel with more than 10% ethanol by volume. E-15 is not permitted.
  • Page 9 SECTION 7: CONTROLS Ignition Switch—Bad Boy Mowers have a three position ignition switch: off, run, and start. With key inserted, rotate it clockwise to START position and release key when engine starts, and switch will automatically return to he RUN position.
  • Page 10 8.3 ATTENTION: RETURN BYPASS VALVES TO OPERATING POSITION BEFORE RUNNING MOWER FOLLOWING REPAIRS. 8.4 Your Bad Boy Mower Weighs: MZ MAGNUM SERIES: 585—620 lbs *** Weights fluctuate with the addition of accessories. 8.5 As you can see by the weights of the machines, you shouldn’t ever try to push or pull a Bad Boy Mower by hand.
  • Page 11 SECTION 10: GREASING THE BEARINGS 10.1 Park the machine on a level surface and disengage the blade control switch. 10.2 Move the motion control levers outward to the neutral position, engage parking brake, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.
  • Page 12 HOW TO CHOOSE THE RIGHT BLADE Essentially there are only TWO basic styles of mowing blades used or approved for use on our current products: 1) The standard style of mowing blade is essentially designed for cutting grass and effectively discharging the clippings out from the deck to fall onto the lawn or to be captured in a grass collection system.
  • Page 13 SERVICE SECTION SECTION 1: HYDROSTATIC SYSTEM The hydrostatic system on MZ models is a sealed lifetime transaxle system, so no maintenance is required. Under the rear of the mower, you will find the two levers shown in the images. These bypass levers serve as a neutral for moving the mower without the engine running.
  • Page 14 SECTION 2: DRIVE BELT Shown to the right is the MZ pump belt tensioner. Tightening the two 3/4˝ jam nuts on the right side will increase the belt tension. Factory setting is about .030˝ (about the thickness of a credit card) between coils as shown. PAGE 14...
  • Page 15 SECTION 3: ENGINE Some models have a drain hose installed on the engine, for easier oil changes. All gas engines used by Bad Boy use 10w30 and have an oil capacity of 2 quarts. Bad Boy recommends that the oil and filter be changed every 50 hours of usage.
  • Page 16 SECTION 4: ELECTRICAL SYSTEM The 25 amp main fuse is located just behind the battery connected to the starter solenoid. On most models, the red wire coming out of the engine is the charging wire from the alternator. Check for 13.6 - 14.2 volts dc at this wire with engine at full throttle.
  • Page 17 PAGE 17...
  • Page 18 SECTION 5: FRAME Torque rear wheel lugs to 65-75 ft. lbs. Retorque at every oil change. (All models) There is one grease fitting on each of the actuator bar pillow blocks (Total of 4). Grease twice a season. The pump belt tensioner is located under the engine and has a grease fitting at its pivot point.
  • Page 19 If deck adjustments are necessary, the deck hanger bolts have adjustable slots. These adjusters affect the overall height of the deck and the level from left to right. The deck spring tension is critical. If the tension is too much, it will cause the spring to break.

  • Page 20: Mowing Tips

    MOWING TIPS: • Mow header strips at the ends of the lawn and around flower beds first. Make them wide enough that you can turn the mower around in the already mown section. Then mow back and forth between these header strips overlapping each lap by about 1/8 the width of the mower’s deck.

  • Page 21: Parts Section

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  • Page 41 NOTES: __________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ PAGE 41...
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  • Page 43 Bad Boy, Inc. 102 Industrial Drive Batesville, AR 72501 1.866.622.3269 www.badboymowers.com Technical Support: Brad Covington ..............brad.covington@badboymowers.com Taylor Prince ................. taylor.prince@badboymowers.com James Russell ..............james.russell@badboymowers.com Warranty: Dustin Tissiere ..................dustin@badboymowers.com Parts: Chris Epperson ..............chris.epperson@badboymowers.com Robert Patterson ..............robert.patterson@badboymowers.com Cut and Mail or Fill Out Online under ‘Owners’ at www.badboymowers.com WARRANTY REGISTRATION Full Name ____________________________________________________________ Address _____________________________________________________________...
  • Page 44 Bad Boy, Inc. 102 Industrial Drive Batesville, Arkansas 72501 (870) 698-0090 Cut and Mail or Fill Out Online under ‘Owners’ at www.badboymowers.com Place Stamp Here POST OFFICE WILL NOT DELIVER WITHOUT POSTAGE BAD BOY MOWERS 102 Industrial Drive Batesville, AR 72501...

This manual is also suitable for:

Mz 42"Mz seriesMz 48 seriesMz magnum 48Mz magnum 54

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