Target Audience:
Yamaha outboard owners, marine technicians and DIY repairers
Application:
Small portable outboards for tenders, dinghies and light utility craft
Brand Heritage:
Yamaha Motor Co., Ltd. - established marine engine manufacturer
Engine Type:
2-stroke, in-line, single cylinder
Rated Power:
1.5 kW at 4500 rpm
Design Priority:
Reliable, lightweight and easily serviceable construction
Parts Support:
Component-level part numbers with exploded diagrams and numerical index
Manual Type:
Parts Catalogue
Format:
PDF (digital download)
Delivery:
Instant download after purchase
Model Covered:
Yamaha 2CMH'04 (2004)
Sections:
Cowling & Fuel, Cylinder & Crankcase, Carburetor, Starter, Generator, Bracket, Upper Casing, Lower Casing & Drive, Repair Kit, Numerical Index
Part Identification:
Exploded diagrams with reference numbers linked to part numbers
Page Count:
N/A - page count not specified for this catalogue
Cowling & Fuel:
Cowling panels, fuel tank, fuel lines, fuel cock and related hardware
Cylinder & Crankcase:
Cylinder block, cylinder head, crankcase, piston, crankshaft, bearings and seals
Carburetor:
Carburetor body, jets, needle valve, float chamber, throttle linkage and gaskets
Starter:
Recoil starter assembly, rope, rewind spring, starter pulley and handle
Generator:
Charging coil, lighting coil, flywheel magneto and electrical connections
Bracket:
Clamp bracket, swivel bracket, tilt lock, steering friction and transom mounting hardware
Upper Casing:
Exhaust housing, driveshaft housing, water tube, shift rod and upper seals
Lower Casing & Drive:
Gearcase, propeller shaft, gears, clutch, water pump, impeller and lower unit seals
Repair Kit:
Gaskets, seals, O-rings and service parts supplied in kit form
Numerical Index:
Part numbers listed numerically for direct lookup
Part Number Format:
Yamaha OEM part numbers tied to diagram reference numbers
Supersessions:
N/A - superseded part listings not stated in this catalogue
Component Breakdown:
Each assembly exploded to individual serviceable parts
Quantity Per Assembly:
Parts listed with quantity required per unit
Fasteners:
Bolts, nuts, screws, washers and clips identified by size and part number
Gaskets & Seals:
Listed separately for rebuild and reseal work
Procedures:
N/A - this is a parts catalogue; disassembly and repair procedures not included
Torque Values:
N/A - torque specifications not included in this catalogue
Wiring Diagrams:
N/A - not a service manual; wiring diagrams not provided
Fluid Capacities:
N/A - capacities not included in this parts catalogue
Identification Method:
Locate reference number on diagram, then match to parts list
Model Verification:
Confirm model code 2CMH'04 and serial number before ordering
Application:
Sourcing correct OEM parts for maintenance and repair
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine Type:
2-stroke, in-line, single cylinder
Ignition:
Flywheel magneto
Rated Power:
1.5 kW at 4500 rpm
Power Rating Basis:
Manufacturer rated output for the 2CMH'04
Bore and Stroke:
N/A - not specified for this model
Compression Ratio:
N/A - not specified for this model
Fuel Type:
N/A - exact petrol/oil ratio not specified for this model
Standard Transmission:
Forward, neutral and reverse gearcase with dog clutch
Optional Transmission:
N/A - no optional transmission offered for this model
Gear Engagement:
Shift lever with shift rod to lower unit
Final Drive:
Bevel gear set to propeller shaft
Gear Ratio:
N/A - not specified for this model
Propeller:
Spline-mounted propeller, model-specific pitch
Dry Weight:
N/A - not specified for this model
Overall Length:
N/A - not specified for this model
Overall Width:
N/A - not specified for this model
Overall Height:
N/A - not specified for this model
Curb Weight (Dry):
N/A - not specified for this model
Shaft Length:
N/A - not specified for this model
Kill Switch:
Emergency stop lanyard provision on the engine stop circuit
Tilt Lock:
Tilt lock mechanism on the clamp bracket for raised-outboard position
Tiller Throttle Friction:
Adjustable steering friction to reduce unintended steering movement
Cowling:
Enclosed cowling covering rotating flywheel and hot engine components
Crash Test Ratings:
N/A - not applicable to marine outboards
Active Safety Electronics:
N/A - no electronic rider-aid systems on this model
Audio System:
N/A - not equipped on this model
Display:
N/A - no instrument display fitted
Driver Assistance Systems:
N/A - none offered on this model
Electrical Output:
Charging/lighting coil assembly as listed in the Generator section
Starting:
Recoil (manual pull) starter
Gearcase Oil:
Check and change at manufacturer-recommended interval after break-in and at scheduled service
Water Pump Impeller:
Inspect and replace at recommended intervals or if cooling weakens
Spark Plug:
Inspect, clean and replace at scheduled service
Fuel System:
Inspect fuel lines and carburetor gaskets for hardening, leaks or clogging
Anodes:
Inspect and replace sacrificial anodes when consumed
Gearcase Lubricant:
N/A - exact factory lubricant grade not stated for this model
Fuel Mixture:
N/A - exact petrol/oil ratio not stated for this model
Common Wear Items:
Water pump impeller, spark plug, gaskets, seals, O-rings, starter rope, propeller
Repair Kit Coverage:
Repair Kit section lists gasket and seal sets for reseal work