1985-1990 Suzuki LT230 and LT250 Models ATV Service Manual
Covers Suzuki LT230, LT230GE, LT-F230G, LT230S & LT250S (1985-1990) ATV maintenance, repair, and overhaul. Features hundreds of photos and diagrams. PN SUZ-8590-ATV
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Sample pages from the 1985-1990 Suzuki LT230 and LT250 Models ATV Service Manual manual
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Suzuki Models Covered & Key Technical Specifications
Models: Suzuki LT230, LT230GE, LT-F230G, LT230S, LT250S
Sub-models / Variants: Shaft-driven models, Chain-driven models
Build Years: 1985–1990
Technical Data:
- Engine displacement: 229 cc
- Carburetor type: Mikuni VM24SS
- Engine oil capacity (shaft-driven): 1,700 cc (oil and filter) / 1,900 cc (overhaul)
- Engine oil capacity (chain-driven): 1,600 cc (oil and filter) / 1,700 cc (overhaul)
- Fuel tank capacity (shaft-driven): 10 liters (2.6 U.S. gal)
- Fuel tank capacity (chain-driven): 9.5 liters (2.4 U.S. gal)
- Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)
- Valve clearance (intake): 0.03–0.08 mm (0.001–0.003 in)
- Valve clearance (exhaust): 0.08–0.13 mm (0.003–0.005 in)
- Idle speed: 1,350–1,450 rpm
Suzuki Manual Features & Content Preview
Technical Scope and Coverage
- Covers 1985–1990 Suzuki LT230, LT230GE, LT-F230G, LT230S, and LT250S ATV models, including both shaft-driven and chain-driven drivetrain variants
- Official Suzuki service publication PN SUZ-8590-ATV, providing factory-authorized service specifications and system diagnostics
- Contains 160 detailed figures, 7 reference tables for torque and fluid capacities, and integrated wiring diagram section
- Delivered as a direct download the moment payment clears
- No DRM restrictions on the print function
- This 266-page workshop publication is the only edition that consolidates the 1985–1990 Suzuki LT230 and LT250 service information with dedicated supplements for later model year updates
Procedural and Diagnostic Scope
The 1985–1990 Suzuki LT230 and LT250 service manual documents the complete disassembly, inspection, and assembly of engine and drivetrain components. It outlines the technical requirements for internal engine work including cylinder head, camshaft, piston, and oil pump maintenance. Detailed coverage extends to the clutch and transmission systems, fuel and exhaust system calibration, and specialized steering or suspension adjustments. The manual provides the necessary logical framework to isolate symptoms across electrical, mechanical, and fuel-delivery systems effectively.
Specification and Reference Data
Technical data provided includes specific torque values for engine fasteners, such as cylinder head nuts, which are documented at 9–11 Nm. Subtransmission oil capacity for the LT-F230G is listed at 240–270 cc. Spark plug gaps are specified at 0.6–0.7 mm for the ignition system. The document includes comprehensive reference charts for tire inflation pressure, lubricant capacities for both chain and shaft models, and detailed electrical system diagnostic values. Reference only — always consult a certified technician before performing service on this equipment.
This official 266-page Suzuki OEM workshop manual covers the 1985–1990 Suzuki LT230 and LT250, documenting engine, chassis, electrical, and drivetrain specifications for all variants of the LT-series ATV.
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