Exmark Troubleshooting Manual for Efficient Lawn Mower Maintenance
Page 40

3.Clean the spark plug or replace it if it is cracked, broken, or if the electrodes are worn.

4.Install the spark plug and torque it to 17 ft-lb (23 N-m).

5.Perform any needed maintenance procedures.

6.Fill the fuel in the fuel tank with fresh gasoline.

7.Check the engine oil level.

8.Connect the wire to the spark plug.

7.ACCESSORIES

You may purchase the following accessory from an Authorized Service Dealer: Side Discharge Kit

8.TROUBLESHOOTING

Exmark designed and built your lawn mower for trouble free operation. Check the following components and items carefully, and refer to Section X Maintenance for more information. If a problem continues, contact an Authorized Service Dealer.

Problem

Engine does not start

Engine starts hard or loses power

Possible Causes

1.The fuel tank is empty or the fuel system contains stale fuel.

2.The throttle lever is not in the Choke position.

3.The wire is not connected to the spark plug.

4.The spark plug is pitted, fouled, or the gap is incorrect.

1.The fuel tank contains stale fuel.

2.The fuel cap vent hole is plugged.

3.The air filter element is dirty and is restricting the air flow.

4.The underside of the lawn mower deck contains clippings and debris.

5.The spark plug is pitted, fouled, or the gap is incorrect.

6.The engine oil level is low or the oil is dirty.

Corrective Action

1.Drain and/or fill the fuel tank with fresh gasoline. If the problem persists, contact an Authorized Service Dealer.

2.Move the throttle lever to the Choke position.

3.Connect the wire to the spark plug.

4.Check the spark plug and adjust the gap if necessary. Replace the spark plug if it is pitted, fouled, or cracked.

1.Drain and fill the fuel tank with fresh gasoline.

2.Clean the fuel cap vent hole or replace the fuel cap.

3.Clean the air filter pre-cleaner and/or replace the paper air filter.

4.Clean the underside of the lawn mower deck.

5.Check the spark plug and adjust the gap if necessary. Replace the spark plug if it is pitted, fouled, or cracked.

6.Check the engine oil. Change the oil if it is dirty or add oil if it is low.

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Contents For Serial Nos 510,000 & Higher Potential Hazard Exmark Parts PLUS→ Program Operators Manual Table of Contents Safety Safety Alert SymbolTraining PreparationCarbon monoxide can kill you Operation Potential Hazard Maintenance and Storage Safety Signs Page Specifications Assembly InstructionsBag Support Rod Handle Latch Mounting Hole Location Fuel Tank Plastic Clips Bracket Self Tapping Screw Tank Base Oil Capacity Operation Instructions ControlsPRE-START Blade Control Lever Blade Brake Clutch Units OnlyOperating Instructions Honda Engines Only Kawasaki Engines OnlyKawasaki Units Only Page Cutting Heights Moving blade can cause serious injury Mowing with the Grass Bag Potential Hazard Maintenance Recommended Maintenance ScheduleWashing Method Scraping MethodPotential Hazard For Honda Units Wing Bolts Cover Paper Element Foam Element Base Worn or damaged blade can break Cutting Edge Radius BBC Shield Tabs and Nuts Tab and Bolt Grease Fitting Set the gap on the plug to 0.030 in .76 mm Lubricating the Gear Case Self-Propelled Units Only For Blade Brake Clutch Units Storage Potential Hazard Troubleshooting AccessoriesCorrective Action Year Limited Warranty Exmark Turf Equipment For units purchased on or after October 1Date Description of Work Done See EXMARK’S Complete Line of Accessories Check us out on the Web

Metro 21 Series specifications

The Exmark Metro 21 Series is a robust and versatile lawn mower designed to meet the needs of both professional landscapers and homeowners seeking a reliable cutting solution. Known for its durability, performance, and user-friendly design, the Metro 21 series has become a popular choice in the mowing industry.

One of the standout features of the Metro 21 Series is its compact and lightweight design, making it ideal for navigating through tight spaces and small yards. This mower is powered by a 21-inch cutting deck, which provides precise cutting and allows for excellent maneuverability. The cutting deck is crafted from high-quality materials, ensuring longevity and resistance to wear and tear over time.

Powered by Exmark's commercial-grade Kohler or Subaru engines, the Metro 21 offers powerful performance without sacrificing fuel efficiency. These engines are designed to deliver reliable starting and consistent power, making it easier to tackle tough mowing conditions. Additionally, the mower features Exmark’s patented rear-discharge system, which contributes to a clean cut and enhanced productivity by allowing clippings to be evenly distributed back onto the lawn.

The Metro 21 Series incorporates a user-friendly height adjustment system, allowing operators to quickly and easily adjust the cutting height to suit varying lawn conditions. This feature provides versatility for achieving the perfect cut in different grass types and growth lengths. Furthermore, the mower is equipped with comfortable handles that can be adjusted for various operator heights, ensuring ergonomic operation and reducing fatigue during extended use.

Another noteworthy technology in the Metro 21 Series is its folding handle design. This allows for easy storage and transport, making it an excellent choice for lawn care professionals who need to maneuver their equipment frequently. The model also comes with a durable composite grass bag for easy clipping collection, ensuring a tidy cleanup after mowing.

In summary, the Exmark Metro 21 Series is a well-engineered mower that combines power, efficiency, and convenience. Ideal for both commercial and residential use, its features cater to the needs of various users. Whether navigating small yards or tackling dense grass, the Metro 21 delivers superior performance, making it a worthwhile investment for lawn care enthusiasts and professionals alike.
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