1987-2006 Suzuki LT80 Factory Service Manual • P/N 9900-25010
Suzuki Models Covered & Key Technical Specifications
Models: Suzuki LT80
Sub-models / Variants: LT80J, LT80K, LT80L, LT80M, LT80N, LT80P, LT80R, LT80S, LT80T, LT80V, LT80W, LT80X, LT80Y, LT80K1, LT80K2, LT80K3, LT80K4, LT80K5, LT80K6
Trade Names: QuadSport
Model Years: 1987–2006
Technical Data:
- Engine: Two-stroke, forced air-cooled, 82.5 cc, 1 cylinder
- Bore / Stroke: 50 mm / 42 mm
- Compression Ratio: 7.4:1
- Transmission: Automatic, V-belt drive, centrifugal dry shoe clutch
- Carburetor: MIKUNI VM16SH
- Ignition: Suzuki PEI (CDI), 22° BTDC at 4,000 r/min
- Spark Plug: NGK BPR7HS / NIPPON DENSO W22FPR (Canada); NGK BP7HS / NIPPON DENSO W22FP-U (others)
- Fuel Capacity: 6.0 L (including 2.0 L reserve)
- Engine Oil Tank Capacity: 1.2 L
- Final Gear Oil Capacity: 80 ml (SAE 20W/40)
Suzuki Manual Features & Content Preview
1987–2006 Suzuki LT80 Service Manual: Technical Overview
- Covers 1987–2006 Suzuki LT80 QuadSport ATV variants, from the base J-series through the final K6 production model
- Official Suzuki publication (P/N 9900-25010), providing 225 pages of factory-standard repair and maintenance documentation
- Delivered as an instant download PDF file the exact moment payment clears
- Contains 47 exploded-view diagrams, 16 electrical schematics, and 12 torque specification tables
- Features a fully indexed, searchable layout for rapid part-number and specification lookup during active workshop jobs
- Serves as the primary reference standard for the LT80 QuadSport series build and all subsequent model year variants
The documentation outlines the specialized automatic V-belt drive transmission system, forced air-cooling mechanism, and P.E.I. ignition circuitry. It logically organizes factory service content into seven core groups. These span general identification, periodic maintenance, engine overhaul, fuel and lubrication systems, electrical diagnostics, and chassis teardowns.
Mechanics and DIYers gain direct access to critical assembly information for the crankshaft, reed valve intake, and centrifugal clutch lock-up checks. Following the manufacturer's logic for engine removal and crankcase disassembly streamlines complex repair workflows. This ensures components are evaluated correctly, with clear intervals for gear oil replacement and precise oil pump bleeding operations. As a standard safety measure, all technical procedures should be cross-referenced with general workshop safety protocols when handling pressurized or electrical systems.
Engine cooling performance relies heavily on the internal fan-forced air system. Shroud assembly requires specific torque values, primarily 8–12 N-m for the head nuts. Fuel delivery depends on the MIKUNI VM16SH carburetor. Factory settings specify a 18.5 mm float height and a #92.5 main jet. Electrical limits are equally precise. The charging system is rated for a minimum generator no-load voltage of 28V AC at 5,000 r/min. For the ignition coil, secondary resistance falls between 12.0 and 17.5 k-ohms.
During lower engine inspections, the maximum allowable crankshaft runout is capped at 0.05 mm. Transmission system documentation notes that the drive belt wear limit bottoms out at 16.7 mm. Adhering to these strict OEM tolerances prevents premature mechanical failure.
Customer Reviews
Read what our customers say about this Suzuki ATV manual and share your own experience.