Suzuki LT-A50K2 (2002) ATV Service & Repair Manual (P/N 99500-20210-01E)

Suzuki’s March 2001 factory service manual covers inspection, maintenance, and overhaul for the 2002 Suzuki LT-A50K2 ATV, P/N 99500-20210-01E.

Search, Bookmarks, and PDF Pages

Text search and diagram access: The body text is searchable, and PDF bookmarks open all seven main sections. The ignition troubleshooting flowchart is readable on screen and is presented as an image, so its text does not appear in PDF searches. Small wiring labels are readable and easier to follow when enlarged.

The download is one printable English PDF with 132 pages. The total includes 125 pages across the seven main sections, plus the front cover, four introductory pages, the publication page, and the back cover.

Engine Overhaul, Chassis Service, and Ignition Diagnosis

These selected highlights show the work covered in the manual. Other examples include spark arrestor cleaning and breather and air vent hose routing.

• Engine repair: Engine removal and remounting, crankcase separation, crankshaft overhaul, cylinder and piston inspection, and oil seal and bearing inspection and replacement.
• Clutch and recoil starter: Centrifugal clutch inspection, initial engagement and lock-up tests, primary drive gear service, and recoil starter disassembly and reassembly.
• Fuel and lubrication: Mikuni VM12SC carburetor service, float height and mixture adjustment, fuel valve removal, fuel filter inspection, and CCI oil pump overhaul, bleeding, and delivery testing.
• Chassis and brakes: Front and rear drum brake service, rear axle housing repair, steering toe-in adjustment, and front suspension and rear swingarm service.
• Ignition and switches: Primary peak-voltage and secondary resistance checks for the ignition coil, generator coil resistance testing, and continuity checks for the engine and emergency stop switches.
• Maintenance and reference: Periodic service intervals, lubrication points, drive chain adjustment, symptom-based troubleshooting charts, tightening torque tables, fluid specifications, and special tool identification.

Suzuki wrote this manual for mechanics with the knowledge, skills, and tools to service its vehicles, including the specified special tools. It assumes familiarity with standard workshop practices.

Model Identification and Service Planning

The opening section identifies the frame and engine serial number locations and gives fuel and oil recommendations by market. Country codes identify the UK, US, and Canadian specifications.

The engine chapter identifies parts that can be removed with the engine in the frame, including the cylinder, piston, clutch assembly, and oil pump. This helps you determine whether a job requires pulling the engine.

Engine and Recoil Starter Repair

The piston-valve engine section gives standard and oversize piston data, piston-to-cylinder clearance, ring inspection procedures, and connecting rod checks. It specifies crankshaft installer 09910-32812 and explains how hammering the crankshaft into the crankcase can misalign it.

Recoil starter illustrations identify the reel, ratchet, return spring, and spiral spring. The manual links recoil starter adjustment to the rear brake lever play check after remounting.

Carburetor and CCI Oil Pump Service

The carburetor section identifies the Mikuni VM12SC by body code 43F0. Its carburetion chart relates throttle opening to the air screw, jet needle, and main jet. Separate instructions cover needle valve wear and explain how wire can damage jets and passages during cleaning.

Oil pump inspection covers the plunger, driven gear, and check valve. The delivery test specifies CCI oil gauge 09900-21602.

Brakes, Steering, and Suspension

Exploded views show how the wheels, steering and front suspension, and rear brake and axle housing fit together. Rear axle runout and bearing checks supplement the brake drum inspections.

The swingarm section covers removal, bushing inspection, and reassembly. For the nonserviceable rear shock absorber, Suzuki gives inspection and replacement instructions.

Since improper handling of brake and steering components can lead to equipment damage or personal injury, always consult a certified technician before undertaking complex service tasks.

Ignition Fault-Finding and Workshop Data

The no-spark and weak-spark flowchart helps isolate connector, spark plug, CDI/ignition coil, and generator faults. It is supported by the wiring diagram, wire and cable routing views, and instructions for the multi-circuit tester and peak-voltage adapter.

The engine mounting torque table identifies individual fastener positions. The service data specify SAE 10W-40 transmission oil, give separate fill quantities for oil changes and overhauls, and list ignition timing.

Selected Engine Wear Limits and Clutch Test Values

Suzuki specifies a 0.05 mm service limit for cylinder head gasket surface distortion and a separate 0.05 mm limit for crankshaft runout. The engine chapter shows where each measurement is taken.

The warmed-engine clutch checks specify 2,200–2,600 r/min at initial engagement and 2,500–2,900 r/min for the lock-up test. The two ranges correspond to separate checks for when the ATV begins to move and whether the clutch engages fully.