Yamaha BearTracker 250 / YFM250XR 2002 ATV Owner’s & Service Manual Set (P/N LIT-11626-16-14)

The owner’s manual covers operation and routine care. Yamaha directs mechanics to use the applicable service supplement together with the base manual and preceding supplements; the supplements are not stand-alone repair books.

Service coverage: The owner’s publication is specifically titled YFM250XR. The workshop compilation covers the service variants listed above and does not contain a separately titled YFM250XR service supplement. Match the ATV’s model label, brake configuration, carburetor, and affected assembly before selecting service procedures or ordering parts.

PDF Search, Bookmarks, and Wiring Detail

Search and diagram access: Both PDFs have searchable text and embedded bookmarks. Some warning labels, warranty pages, and closing material in the owner’s file are not text-searchable. Small labels in the service wiring diagrams are readable when enlarged.

The ZIP contains two printable PDFs totaling 607 pages: a 163-page owner’s manual and a 444-page service compilation. All original covers and blank divider pages are included in that total, along with 10 closing pages in the owner’s file containing warranty information, safety notices, promotional material, a blank page, and a two-sided reply card.

ATV Operation, Engine Repair, and Shaft-Drive Service

These selected coverage highlights outline the main subjects rather than reproduce the full contents. Other topics include speed-limiter adjustment and headlight-beam adjustment.

• Owner operation: Controls, pre-ride inspection, starting, shifting and reverse, cargo loading, terrain techniques, routine maintenance, cleaning, and storage.

• Engine repair: Step-by-step removal, disassembly, inspection, reassembly, and adjustment procedures for the cylinder head, piston, crankcase, clutches, transmission, and related components.

• Shaft drive: Middle-gear and final-drive repair, bearing and seal service, shim selection, gear-lash measurement and adjustment, universal-joint work, and drive-shaft installation.

• Chassis and brakes: Wheels, rear axle, steering, front arms, shocks, and swingarm service, with drum-brake procedures and supplement-specific hydraulic front-disc work.

• Carburetion: Carburetor removal, disassembly, inspection, assembly, and fuel-level adjustment, with separate data and component layouts for the later BSR33 installation.

• Electrical diagnosis: Switch-continuity checks, starter-motor repair, and fault tracing for ignition, starting, charging, lighting, and signal circuits.

• Workshop references: Exploded assembly views, cable-routing layouts, model-specific wiring diagrams, troubleshooting charts, special-tool numbers, torque tables, fluid specifications, wear limits, and electrical test data.

The owner’s manual supports preventive maintenance and minor repairs by owners; Yamaha wrote the service publications primarily for dealers and qualified mechanics with a working knowledge of machine repair.

YFM250XR Controls, Riding, and Routine Care

The controls chapter explains the main switch and indicator lights, throttle and speed limiter, brake and parking controls, shift pedal, drive-select lever, recoil starter, fuel controls, carriers, and rear-shock adjustment. Identification pages show the key number, VIN, and model label used when identifying the ATV or ordering parts.

Riding coverage includes cold- and warm-engine starting, break-in, slope parking, turning, climbing and descending hills, side slopes, shallow-water crossings, rough terrain, and recovery from slides or skids. ATV-specific warnings address protective equipment, passenger restrictions, off-road-only use, rider training, and the minimum rider age of 16.

Routine-care sections cover engine and final-drive oil, spark plug and air-filter service, idle and clutch adjustment, brake inspection, cable and steering lubrication, wheels, battery, fuses, lamps, spark arrester, troubleshooting, and storage preparation. Valve-clearance adjustment and hydraulic-brake component work are referred to qualified Yamaha service personnel.

Internal Engine and Shaft-Drive Repair

Engine overhaul extends to valve guides and seats, camshaft and timing-chain components, piston and cylinder inspection, primary centrifugal and secondary clutches, transmission and shifter, balancer, oil pump, and crankshaft. Electric starter-motor inspection and recoil-starter repair are also covered.

The engine chapter warns against hammering out the piston pin or forcing uneven crankcase separation, which can damage components or crankcase sealing surfaces.

Middle-gear shim selection must be revisited after specified case, gear, bearing-housing, or shaft replacements; the previous shim stack is not automatically correct. Final-drive coverage includes shim and thrust-washer selection, while the symptom chart distinguishes possible bearing rumble from gear-lash-related whining to guide component inspection.

Brake and Carburetor Differences Between Supplements

Front brakes: XL(C) uses front drums. XN introduces a single hydraulic front disc, with pad, caliper, master-cylinder, hose, and bleeding procedures; XP identifies the dual-disc configuration and revised routing and signal-system information.

The hydraulic-brake section warns that solvents can swell and distort internal seals and that the caliper piston must not be pried out.

BT changes: The BT supplement adds BSR33 carburetor data and removal/disassembly layouts, select-lever changes, revised rear-brake and steering-stem layouts, and handlebar installation details. It also provides revised electrical-component locations and its own wiring diagram.

Electrical Tests and Workshop Tools

Ignition and electric-starting circuit diagrams accompany fault-tracing procedures for no spark and an inoperative starter. Charging, lighting, and signal-system sections provide circuit checks and component test specifications; full wiring diagrams identify the XL, XN, XP, and BT configurations.

Special-tool listings give regional equivalents, including the valve-adjusting tool YM-08035 / 90890-01311 and crankcase separating tool YU-01135-A / 90890-01135. Shaft-drive and electrical references include the gear-lash measurement tool YM-01231 / 90890-01231 and pocket tester YU-03112 / 90890-03112.

Before inspection or repair, shut the ATV off, secure it on level support, isolate electrical power where required, and keep fuel away from sparks or hot exhaust components. Brake, steering, drivetrain, and engine repairs require appropriate mechanical experience and a final safety check before the ATV is returned to use.

Examples of Middle-Gear and Final-Drive Lash Data

The XL(C) middle-gear section specifies forward gear lash of 0.1–0.2 mm and reverse gear lash of 0.1–0.25 mm when measured with the gear-lash tool.

The final-drive section specifies a separate gear-lash range of 0.1–0.2 mm, alongside the corresponding shim and thrust-washer selection information.