1985–1987 Kawasaki ZL900 & ZL1000 Eliminator Service Manual Supplement (P/N 99924-1077-51)

Kawasaki’s Service Manual Supplement, P/N 99924-1077-51, second edition dated March 18, 1986, covers the 1985–1987 ZL900-A1, ZL900-A2, and ZL1000-A1 Eliminator. It documents model-specific maintenance and repair differences and requires the separate ZX900 Motorcycle Service Manual (P/N 99924-1048-01) for complete servicing. That base manual is not included.

PDF Search, Page Bookmarks, and Wiring Detail

Finding pages and reading diagrams: PDF text search is not available. Embedded bookmarks link to individual pages but use image filenames rather than chapter names. Small wire-color codes and component labels on the full-system wiring diagrams require zooming.

One printable English PDF contains 185 pages: 140 pages of main chapters and appendix, a 37-page ZL1000-A1 chapter, seven front-cover and preliminary pages, and one rear cover. All cover and preliminary pages are included in the total.

Shaft-Drive Repair and Model-Specific Workshop Procedures

These selected coverage highlights outline the workshop content; other topics include seat-cover removal and general lubrication.

• Fuel system: Throttle-cable adjustment, fuel-tank removal and installation, carburetor specifications, and California evaporative-emission hose routing.

• Cooling system: Coolant draining, water-pump removal, radiator removal, thermostat access, and model-specific hose and reservoir arrangements.

• Clutch and shifting: Clutch removal, hub disassembly, spring-plate free-play measurement, plate replacement criteria, and external shift-mechanism removal and installation notes.

• Shaft drive: Front and final bevel-gear disassembly, bearing-preload measurement, shim selection, backlash adjustment, and tooth-contact pattern checks.

• Suspension, brakes, and steering: Step-by-step front-fork disassembly and assembly, rear-shock adjustments, swing-arm alignment, rear-master-cylinder removal, and steering-stem installation notes.

• Electrical diagnosis: Full-system wiring diagrams, cooling-fan circuit checks, temperature-indicator tests, and ZL1000-specific starter-motor and junction-box procedures.

Written primarily for motorcycle mechanics in a properly equipped shop, this supplement also supports owners performing basic maintenance and repair who understand mechanical principles, tool use, and workshop procedures.

Bevel Gears, Bearing Preload, and Clutch Service

The final-drive chapter covers both gear cases and the propeller shaft, with separate procedures for pinion-bearing and front-driven-gear bearing preload. Correct and Incorrect Tooth Contact Patterns illustrate the drive and coast contact checks, while shim tables support adjustment.

Special-tool references include the pinion gear holder, 57001-1165, and dial gauge holder, 57001-1049. Excessive tapered-roller bearing preload can damage the bearings; the manual explains the associated measurement and adjustment requirements.

Clutch coverage distinguishes spring-plate free-play criteria for new and reused friction plates. It also describes damper-cam inspection and clutch-hub disassembly, rather than treating the clutch solely as a hydraulic-control system.

Carburetor Differences and Cooling-System Access

Carburetor variants: The ZL900 uses Keihin CVK32 specifications; the ZL1000-A1 chapter supplies CVK34 data, coasting-enricher inspection, and US high-altitude jetting information. Vacuum synchronization and most carburetor overhaul procedures are referenced to the separate base manual.

California evaporative-emission diagrams identify the liquid/vapor separator, canister, and hose connections. Cooling information explains coolant circulation and the different reservoir-access arrangements.

The radiator fan can start with the ignition switched off. Observe the manual’s fan warnings and use appropriate lifting equipment and protective gear when handling heavy components or hazardous fluids.

Engine Differences and Chassis Work

The engine top-end pages add cylinder-head-cover, cylinder-head-removal, and exhaust-system notes. The Engine Oil Flow Chart traces lubrication through the engine, transmission, and front bevel gears. ZL1000-specific material adds connecting-rod bearing-insert selection, weight-mark matching, and installation requirements.

Front-fork service includes guide-bush and seal installation details. An excessive fork-oil level can cause leakage and seal damage.

Rear-shock coverage includes external inspection, damping adjustment, and oil filling; the shock absorbers are sealed units rather than assemblies covered for internal disassembly. Swing-arm pivot selection and alignment, steering-stem notes, brake-pad limits, and disc-runout criteria provide further chassis reference data.

Electrical Circuits and Symptom-Based Troubleshooting

The Charging System Circuit and Cooling Fan System Wiring show how the relevant components connect. ZL1000-specific sections add starter-motor disassembly and assembly, fuel-level-sensor testing, and junction-box fuse, relay, and diode checks.

The appendix groups common starting, running, shifting, braking, and handling symptoms. Together with component inspection criteria and circuit diagrams, these references support daily diagnostics, troubleshooting, and routine maintenance by connecting symptoms with the relevant systems and checks.

Selected Fork-Oil Capacities and Bevel-Gear Backlash

For the ZL900 front fork, the manual specifies 276 ± 2.5 mL per leg after disassembly and complete drying. The ZL1000-A1 specification table lists a full capacity of 262 ± 2.5 mL, with a separate quantity for an oil change.

Final bevel-gear backlash is specified at 0.13–0.18 mm. The accompanying shim tables and tooth-contact illustrations put this adjustment value in the context of gear-case service.