Suzuki DR250 1982–1985 OEM Service Manual (P/N 99500-42002-03E)
304 Pages • 58.15 MB • Instant, Printable PDF
Suzuki Models Covered & Key Technical Specifications
Models: DR250, SP250
Sub-models / Variants: DR250, DR250D, DR250F, SP250Z, SP250D, SP250E, SP250F
Model Years: 1982–1985
Serial Numbers: 99500-42002-03E
Technical Data:
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Engine type: Four-stroke, air-cooled, OHC
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Piston displacement: 249 cm3
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Bore x Stroke: 72.0 mm x 61.2 mm
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Compression ratio: 8.9 : 1
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Carburetor: MIKUNI VM28SS
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Clutch: Wet multi-plate type
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Transmission: 5-speed constant mesh
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Drive chain: D.I.D. 520DS, 104 links
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Ignition timing: 10° B.T.D.C. below 1 700 r/min and 35° B.T.D.C. above 3 000 r/min
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Fuel tank capacity: 9.5 L
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Engine oil capacity: 1.2 L (1.3 US qt)
Suzuki Manual Features & Content Preview
- Official 304-page Suzuki OEM publication (99500-42002-03E) providing complete technical data for D, E, F, and Z variants.
- Detailed teardown and assembly coverage for the single-cylinder 4-stroke TSCC engine.
- Lists crucial factory specifications, including 35–40 Nm for cylinder head nuts and 95–100 Nm for the magneto rotor.
Engine and Chassis Documentation
This comprehensive manual details engine removal, lower-end disassembly, and top-end servicing to factory standards. Fast access to accurate data is critical when you have a bike torn down on the lift. Because this manual is an instant download, you can pull up the exact specifications you need right away. Technical chapters break down transmission gear shifts, the balancer assembly, and all primary drive components. You will find clear, step-by-step maintenance outlines for the Mikuni VM28SS carburetor alongside proper oil pump operational checks. Chassis sections cover drive chain tensioning, front and rear brake adjustments, and factory tuning parameters for the Full-Floating suspension system. Routine maintenance schedules map out required oil changes, spark plug intervals, and valve clearance procedures to keep the machine running optimally.
Technical Specifications and Shop Reference
Precision is everything during a rebuild. Standard torque values are clearly listed for critical fasteners, establishing 37–45 Nm for engine mounting bolts and 9–12 Nm for the exhaust pipe. The cylinder head specification tables note exact intake valve clearances at 0.03–0.08 mm, while total engine oil capacity is documented at 1.2 liters. Extensive exploded-view diagrams illustrate the clutch assembly, gearbox, and cylinder head to ensure your assembly matches the original layout. Working on vintage motorcycles involves high-pressure components and inherent mechanical risks. Always verify your own technical capabilities and shop safety protocols before proceeding with internal engine work. For professionals studying [how factory workshop documentation is structured](
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