1998 Yamaha E48T / C55T Outboard Motor Service Manual
1998 Yamaha E48T and C55T outboard motors: detailed service procedures for removal, disassembly, and assembly. Includes part numbers. LIT-18616-01-28
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Sample pages from the 1998 Yamaha E48T / C55T Outboard Motor Service Manual manual
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Yamaha Models Covered & Key Technical Specifications
Models: Yamaha E48C, E55C, 55BM, 55BE, 55BEM, 55BET, E48MH, C55ER, C55TR
Sub-models / Variants: Manual start tiller, Electric start tiller, Electric start remote control, Power trim and tilt models
Build Years: 1994–1998 (1994 1st Edition reference)
Serial Numbers: E48C 010831~, 377728~; E55C 272904~; 55BM 252001~; 55BE 004803~, 329002~; 55BEM 502490~; 55BET 721947~
Technical Data:
- Engine type: 2-stroke, inline 2-cylinder
- Total displacement: 760 cm³ (46.4 cu. in)
- Bore x stroke: 82 x 72 mm (3.2 x 2.8 in)
- Compression pressure: 637 kPa (91.2 psi) for E48/E55; 912 kPa (129.7 psi) for 55B variants
- Fuel system: 2-carburetor, loop charge, reed valve
- Ignition system: CDI
- Gear oil capacity: 500 cm³ (16.9 US oz)
- Lighting output: 12V-80W or 12V-6A depending on model
Yamaha Manual Features & Content Preview
1994–1998 Yamaha E48T and C55T Outboard Motor Technical Documentation
- Covers 1994–1998 Yamaha E48T and C55T outboard motors, documenting internal engine specs for the 2-stroke inline-twin series
- Official Yamaha publication P/N 696-28197-Z4-11, first edition September 1994
- Contains 46 exploded-view assembly diagrams and 35 detailed maintenance specification tables
- File link appears in your order confirmation straight away
- OCR text layer lets you jump to a torque spec by keyword
- Suitable for printing individual sections for shop-floor use
- This first edition serves as the foundational technical reference for the E48 and C55 model series, documenting the transition between mechanical and electronic engine components
Manual Content Summary
This publication organizes technical procedures into chapters dedicated to General Information, detailed Specifications, and Periodic Inspection and Adjustment. It outlines the foundational requirements for routine maintenance, including fuel system diagnostics, ignition timing, and electrical system analysis. The documentation provides a framework for engine and lower unit diagnostics, bracket unit adjustments, and troubleshooting protocols, structured for use by those with fundamental mechanical knowledge.
Technical Specification Preview
Engine component tolerances are listed in the specification chapter, including piston-to-cylinder clearance between 0.065–0.070 mm and cylinder head warpage limits of 0.1 mm. Tightening torque values are documented for primary fasteners, such as cylinder head bolts at 15–30 Nm and flywheel nuts at 160 Nm. Intake reed valve stopper height is specified at 3.0 mm for E48C and 9.9 mm for C55 variants. Valve clearance for the intake is listed at 0.11–0.20 mm in the cylinder head specification table. Gear oil capacity for these units is documented at 500 cm³. The Suzuki QuadRunner LT300E magneto pick-up coil resistance is specified at 450–650 ohms. For additional technical detail, consult how factory workshop documentation is structured when evaluating complex power unit overhauls.
Reference only — always consult a certified technician before performing service on this equipment. This 101-page Yamaha OEM service publication covers the 1994–1998 E48T and C55T, documenting engine, chassis, electrical, and fuel-delivery specifications for these two-stroke outboard marine power units.
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