1981-1983 Yamaha SECA 750 / XJ750RH-RK / XJ750K Motorcycle Service Manual
Diagnostic procedures and component service for Yamaha SECA 750 models, including fuser assembly, paper path, and imaging procedures plus diagnostic flowcharts. Ref: P/N 90890-03081
Manual Preview
Sample pages from the 1981-1983 Yamaha SECA 750 / XJ750RH-RK / XJ750K Motorcycle Service Manual manual
Purchase & Download
Yamaha Models Covered & Key Technical Specifications
Models: Yamaha SECA 750, XJ750RH, XJ750RK, XJ750K
Sub-models / Variants: 750, RH, RK, K
Trade Names: SECA, XJ750
Build Years: 1981–1983
Serial Numbers: XJ750K 22T-000101 and following
Technical Data:
- Engine idle speed: 1050 +/- 50 r/min
- Intake valve clearance (cold): 0.11–0.15 mm (0.004–0.006 in)
- Exhaust valve clearance (cold): 0.16–0.20 mm (0.006–0.008 in)
- Transmission case fluid capacity: 0.21 liters
- Crankcase bolt torque (6 mm): 12 Nm (8.7 ft-lb)
- Crankcase bolt torque (8 mm): 24 Nm (17.5 ft-lb)
- Compression pressure (standard): 1078 kPa (156 psi)
- Spark plug: BPR7ES (NGK) or W22EPR-U (ND)
- Front fork air pressure (standard): 39.2 kPa (5.7 psi)
Yamaha Manual Features & Content Preview
1981–1983 Yamaha SECA 750 Service Documentation
- Covers 1981–1983 Yamaha SECA 750, XJ750RH, XJ750RK, and XJ750K, focusing on the 750cc engine configuration
- Official Yamaha publication P/N 90890-03081, published for the 1981-1983 model cycles
- Contains 56 exploded-view diagrams and 15 torque specification tables across 234 pages
- File link appears in your order confirmation straight away
- Stored against your account so you can retrieve it after a hard-drive loss
- Page spreads stay legible when printed at original size
- Indexed PDF search covers every chapter and appendix
- This 1981-1983 service manual is the primary document used for the 22T-series build and its subsequent 1981–1983 iterations
Detailed Technical Contents
The 1981–1983 Yamaha SECA 750 service manual documents the complete disassembly and assembly sequence for the 750cc powerplant. Dedicated sections outline periodic inspection routines, including valve clearance adjustments using shim-over-bucket mechanics, carburetor synchronization protocols, and ignition timing benchmarks using the built-in timing marks. The manual also details chassis maintenance, including front fork air pressure adjustments and steering head bearing tensioning.
Additional chapters provide data for major components such as the shaft drive assembly, primary clutch mechanism, and oil pump systems. How factory workshop documentation is structured is essential for owner-technicians preparing for a complete engine overhaul or routine lubricant maintenance.
Specification Highlights
Engine maintenance data for the 1981–1983 Yamaha SECA 750 includes precise clearance limits and tightening values for assembly. Crankcase bolt torque is listed as 12 Nm (8.7 ft-lb) for 6mm fasteners and 24 Nm (17.5 ft-lb) for 8mm fasteners in the assembly data. Intake valve clearance for the 1981–1983 Yamaha SECA 750 is specified at 0.11–0.15 mm in the valve shim chart. Standard compression pressure for the 1981–1983 Yamaha SECA 750 is documented at 1078 kPa. Reference only — always consult a certified technician before performing service on this equipment.
An official 234-page Yamaha motorcycle workshop manual covering the 1981–1983 Yamaha SECA 750, documenting engine, chassis, electrical, and powertrain specifications for the XJ750RH, XJ750RK, and XJ750K model series builds.
Document Reference: P/N 90890-03081
Manual FAQ, Purchase & Download Details
Customer Reviews
Read what our customers say about this Yamaha Motorcycle manual and share your own experience.