1988-2002 Suzuki LT-F250 QuadRunner 250 Factory Service Manual (P/N 99500-42098-01E)

• Official Suzuki publication 99500-42098-01E (copyright 1990, revised for models N through W)
• Covers 1988–2002 Suzuki LT-F250 QuadRunner 250 air-cooled 4-stroke ATV models, including US and international variants
• Spans 270 pages detailing engine overhauls, chassis maintenance, and diagnostic sequences
• Contains 47 detailed exploded-view diagrams and 24 comprehensive torque-specification tables

Document Content Walkthrough

Professional mechanics and DIY enthusiasts know the value of accurate factory data. This reference documents the complete teardown and assembly of the LT-F250's Twin Dome Combustion Chamber engine and transmission. Chapters break down general information, including VIN locations, fuel recommendations, and break-in requirements. Engine sections isolate the compression check, starter clutch, cylinder head, and the five-speed constant-mesh transmission. Further segments map out the chassis suspension, fuel delivery, lubrication circuits, and electrical system specifications.

Technical Depth and Reference Values

Accuracy matters when tearing down an engine block. The publication provides exact specifications for critical components. Intake valve clearance must be set at 0.03–0.08 mm. Exhaust valve clearance requires 0.08–0.13 mm. Assembly data dictates cylinder head bolt torque values at 21–25 Nm for the 8 mm diameter nuts. The factory data aids in accurate part identification, eliminating guesswork during complex overhauls.

Engine and Maintenance Specifications

Beyond clearances, the manual lists exact oil capacities and routine maintenance intervals to keep the quad running at peak performance. Working on ATV drivetrains and suspension parts carries inherent risks, making it critical to follow established workshop safety practices during any heavy lifting or component disassembly. Relying on accurate factory specifications ensures that every repair stage aligns with OEM tolerances.