1985-1986 Yamaha TT600 / TT600N Service Manual
Diagnostic procedures and component service for the Yamaha TT600N (1985-1986). Includes fuel system, engine overhaul, chassis, and electrical system repairs. Ref: LIT-11616-04-55
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Sample pages from the 1985-1986 Yamaha TT600 / TT600N Service Manual manual
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Yamaha Models Covered & Key Technical Specifications
Models: Yamaha TT600, TT600N
Build Years: 1985–1986
Serial Numbers: JYA55U00*FA000101, 55U-000101
Technical Data:
- Intake valve clearance (cold): 0.05–0.10 mm (0.002–0.004 in)
- Exhaust valve clearance (cold): 0.12–0.17 mm (0.005–0.007 in)
- Compression pressure (standard): 1,079 kPa (11 kg/cm², 156 psi)
- Compression pressure (minimum): 883 kPa (9 kg/cm², 128 psi)
- Engine oil capacity (no filter change): 2.0 L (2.1 US qt)
- Engine oil capacity (with filter change): 2.1 L (2.2 US qt)
- Recommended oil: Yamalube 4-cycle or SAE 20W40 Type SE
- Fork oil capacity (each fork): 589 cm³ (19.9 US oz)
- Recommended fork oil: Yamaha Fork Oil 10wt or equivalent
- Standard spark plug: NGK DP7EA-9
- Spark plug gap: 0.8–0.9 mm (0.031–0.035 in)
Yamaha Manual Features & Content Preview
1985–1986 Yamaha TT600 Service Documentation
- Covers 1985–1986 Yamaha TT600 and TT600N enduro motorcycles, detailing engine, chassis, and electrical maintenance for both models
- Official Yamaha publication P/N LIT-11616-04-55, first edition August 1984
- Contains 100 pages of diagnostic procedures, assembly data, and maintenance specifications including 15+ exploded-view diagrams
- Downloads to your account within seconds of checkout
- Unlimited re-downloads tied to the purchase record
- Laid out for standard letter and A4 printing
- Full-text search finds any part number in seconds
- This 1984 first edition is the factory-authorized reference for the TT600N launch build, covering core engine and chassis adjustments not found in later supplemental guides
Technical Walkthrough of the Yamaha TT600 Manual
The 1985–1986 Yamaha TT600 service manual provides technical data and maintenance reference for the TT600N. Chapters explore machine identification, periodic inspections, and fundamental engine overhaul procedures, including disassembly and assembly protocols for the cylinder head, transmission, and clutch.
Additional sections focus on carburetion, chassis settings, and electrical diagnostics. The content is organized for the mechanic, offering guidance on component service limits, lubrication points, and system testing parameters for the entire machine.
Specification Highlights for the 1985–1986 Yamaha TT600
Reference tables document core motorcycle systems and mechanical limits. Valve clearance for the intake is listed at 0.05–0.10 mm in the cylinder head specification table. The crankshaft bearing runout limit is specified at 0.08 mm. Cylinder head bolt torque values are documented at 25 Nm for bolts and 20 Nm for nuts in the assembly section.
Maintenance intervals for the 1985–1986 Yamaha TT600 suggest major service every 12,000 km to maintain operating standards. Understanding factory workshop documentation is structured specifically to aid those performing routine adjustments or major overhauls.
Reference only — always consult a certified technician before performing service on this equipment. This official 100-page Yamaha OEM service manual covers the 1985–1986 Yamaha TT600/TT600N, documenting engine, chassis, electrical, and fuel-delivery specifications for the 55U-series factory build.
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