Yamaha FJ1100/FJ1200 Service Manual Set, 1984–1993 (P/N LIT-11616-04-08)

The FJ1200 supplements depend on the base manual and preceding supplements for unchanged procedures. Using the applicable publications together helps match service checks, wiring, and parts-selection references to the version being repaired.

PDF Bookmarks and Wiring Detail

Search and navigation: The service pages are not text-searchable. Chapter and section bookmarks cover the base manual and all three supplements; the “Back to Index” bookmark points to a separate file that is not included. Small wire-color and connector labels in the full wiring diagrams require zooming.

The ZIP contains one printable PDF with 500 pages. That total includes the compilation cover, three supplement covers, three back covers, three memo pages, four blank section pages, and one additional nontechnical page.

Engine Overhaul, Chassis Repair, and Electrical Testing

The following highlights are a selection from the included publications. Other topics include headlight adjustment and switch-continuity checks.

• Engine and transmission: Step-by-step engine removal, cylinder-head and camshaft work, piston/cylinder inspection, clutch and oil-pump service, crankcase separation, and transmission teardown.

• Carburetor service: Mikuni four-carburetor disassembly, inspection, reassembly, float-height and fuel-level adjustment, and carburetor synchronization.

• Brakes and final drive: Wheel and drive-chain service, caliper and master-cylinder overhaul, brake bleeding, and hydraulic-clutch master and release-cylinder repair.

• Suspension and steering: Front-fork disassembly and inspection, anti-dive diagnosis, steering-head service, and Monocross shock, swingarm, and relay-arm work.

• Electrical fault finding: Starting-circuit cut-off checks, charging and ignition tests, lighting and signal troubleshooting, and model-specific fuel-system diagnosis.

• Factory reference data: Torque tables, fluid capacities, wear limits, clearance data, electrical test specifications, exploded assemblies, and cable and hose routing.

Yamaha wrote these publications primarily for dealers and qualified mechanics, assuming an existing understanding of motorcycle repair concepts and procedures.

Engine Bench Work and Periodic Service

Valve work extends to guide replacement, seat recutting, and lapping. Reassembly coverage includes cam-chain timing, component-specific tightening sequences, sealant locations, and lubrication callouts.

Bearing selection: Main- and connecting-rod-bearing color codes are tied to crankcase, crankshaft, and connecting-rod markings. The associated measurement procedures explain how bearing clearances are checked before selecting replacements.

Periodic inspection sections cover valve-clearance measurement and pad selection, ignition-timing and compression checks, oil and filter changes, and battery and lighting inspection. The air-cooled engine coverage includes the oil-cooler assembly and lubrication paths.

Tool references include the YM-33966 tappet adjusting tool, YM-91042 clutch holder, and YU-33210 Plastigage set. The camshaft procedures warn that incorrect cap loading can bend or damage the No. 3 caps.

Fuel Controls and Electrical Differences

FJ1200S/SC: The supplement adds revised cowling procedures, fuel-reserve circuit diagnosis, and digital-clock checks. California-specific coverage includes canister inspection, carburetor air-vent control-valve testing, and hose routing.

FJ1200W/WC: Digital ignition and electric-starting troubleshooting accompany fuel-pump circuit and relay tests. Separate fault charts distinguish a pump that fails after engine startup from a failure of its timed initial operation, helping isolate supply, wiring, relay, and pump faults.

FJ1200B/BC: Revised engine mounting, wheel and brake assemblies, suspension details, and electrical layouts accompany sealed maintenance-free battery inspection and charging charts.

The electrical sections reference the YU-03112 pocket tester and YM-34487 dynamic spark tester. Drawing examples include the FJ1100L/LC Circuit Diagram, FJ1200B/BC Wiring Diagram, carburetor section views, transmission exploded view, Lubrication Diagram, and California Canister Hose Routing.

Fork, Anti-Dive, and Rear-Suspension Limits

Fork procedures identify the seals, plate washers, bushings, and oil-lock valve that can be damaged during separation. The FJ1100 plunger-case cautions also explain how mineral-oil contamination can damage the actuator O-ring and cause brake-fluid leakage.

Rear-shock coverage includes removal, inspection, replacement, and remote-adjuster setup. The FJ1100 shock absorber and anti-dive valve assembly are replaced as units rather than internally rebuilt.

Chassis tool references include the YM-01326 T-handle, YM-01388 damper-rod holder, and YU-33975 steering ring-nut wrench. Engine removal, brake and hydraulic work, fuel-system service, and spring-loaded suspension repair require secure support, correct tools, and verification of the model-specific section before disassembly.

Examples of Wear Limits and Ignition Test Data

For FJ1100L/LC bench inspection, the cylinder-head warpage limit is 0.03 mm (0.0012 in), and the clutch friction-plate wear limit is 2.8 mm (0.11 in).

The FJ1200B/BC electrical specifications identify the CM12-35 ignition coil and give a primary-winding resistance of 1.8–2.2 Ω at 20°C (68°F), alongside the related ignition-system test data.