Robin EH25 Service Manual

Defines maximum engine output after break-in.

Defines optimal output for engine life and fuel efficiency.

Defines torque at maximum output speed.

Graphical representation of engine performance characteristics.

Describes the integrated aluminum diecast cylinder and crankcase.

Details the aluminum diecast main bearing cover and its functions.

Describes the forged carbon steel crankshaft and its features.

Explains the forged aluminum alloy connecting rod and cast piston.

Details the piston rings made of special cast iron.

Describes the camshaft construction for D and B type engines.

Explains the valve placement and cooling air flow.

Describes the aluminum diecast cylinder head for efficient combustion.

Explains the centrifugal flyweight governor system.

Details the cooling system using flywheel fins and baffles.

Describes the splash lubrication method.

Explains the transistor controlled magneto ignition system.

Describes the horizontal draft carburetor with float system.

Details the urethane foam element air cleaner.

Provides a cross-sectional diagram of the engine.

Important warnings and precautions for disassembly/reassembly.

Lists necessary special tools for disassembly.

Step-by-step guide for disassembling engine components.

Step-by-step guide for reassembling engine components.

Procedure for running in a newly overhauled engine.

Identifies the ignition system types used (UTCI, TIC).

Explains the operational principle of the ignition timing system.

Provides electrical wiring diagrams for the ignition system.

Explains the carburetor's float, pilot, and main systems.

Details carburetor disassembly and reassembly steps.

Covers disassembly and reassembly of the recoil starter.

Lists common causes for engine starting problems.

Identifies reasons for engine misfires.

Lists causes for unexpected engine shutdown.

Explains common causes of engine overheating.

Details causes of engine knocking or pinging.

Lists causes for engine backfiring.

Instructions for carefully mounting and supporting the engine.

Requirements for proper engine cooling and air supply.

Guidelines for safe exhaust gas venting.

Information on belt drives and flexible couplings.

Specifications for engine component clearances and wear limits.

Torque values for various engine bolts and nuts.

Chart for selecting appropriate lubricant viscosity based on temperature.

Routine checks and cleaning for daily operation.

Initial maintenance after 20 hours of operation.

Scheduled maintenance every 50 hours or 10 days.

Monthly maintenance tasks.

Maintenance tasks for 500-600 hours of operation.

Annual engine overhaul and service.

Procedures for storing the engine.