1983-1988 Yamaha Enticer 340 & Excel III Snowmobile Service Manual

Field service reference for 1983-1988 Yamaha Enticer 340 and Excel III snowmobiles, covering engine, power train, and electrical systems. Publication 83-88-yamaha-enticer-excell3-340-snowmobile.pdf.

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Yamaha Models Covered & Key Technical Specifications

Models: 1983–1988 Yamaha Enticer 340, 1983–1988 Yamaha Excel III
Sub-models / Variants: EC340G, ET340TG
Trade Names: Enticer, Excel III
Build Years: 1983–1988
Serial Numbers: EC340G (Frame 8T7-121101, Engine E338-121101), ET340TG (Frame 8T9-111101, Engine E338-111101)
Technical Data:

  • Engine type: Fan-cooled, 2-stroke, 5-port, twin-cylinder
  • Displacement: 338 cc (20.6 cu. in)
  • Bore x Stroke: 60 mm x 59.6 mm
  • Compression ratio: 6.5:1
  • Transmission: V-belt automatic centrifugal
  • Carburetor: Mikuni B38-34, I.D. mark 8T600
  • Idle speed: 1,700 ± 100 r/min
  • Fuel capacity: 22.7 L (6 US gal)
  • Drive chain pitch: 12.7 mm (0.5 in)
  • Suspension type: Slide rail
Technical Specifications
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Document Number / Seller:
25760 / Donald Cook
File Size:
25.48 MB
File Type:
PDF
Language:
English
Pages:
123
Printable:
Yes
Category:
Snowmobile
Last updated / verified
Dec 31, 2025

Yamaha Manual Features & Content Preview

1983–1988 Yamaha Enticer 340 & Excel III Service Documentation

  • Covers 1983–1988 Yamaha Enticer 340 and Excel III snowmobiles in EC340G and ET340TG variants with fan-cooled twin-cylinder engines
  • Third-party publication from Midwest Manuals, featuring original Yamaha technical illustrations and specification charts
  • Contains 14 detailed exploded-view diagrams covering engine, powertrain, suspension, and chassis assemblies
  • Stored against your account so you can retrieve it after a hard-drive loss
  • Full-text search finds any part number in seconds
  • This service reference is the primary documentation set for the 1983–1988 Yamaha Enticer 340 and Excel III series, providing factory-recommended maintenance and overhaul specs

Component and System Walkthrough

This 123-page manual provides the technical information necessary to service 1983–1988 Yamaha Enticer 340 and Excel III snowmobiles. The content is organized by functional system, documenting the general inspection requirements, engine disassembly and inspection, carburetor tuning, drivetrain maintenance, chassis adjustments, and electrical system diagnostics. Each chapter transforms complex mechanical setups into descriptive technical sections, ensuring owners understand the how factory workshop documentation is structured for these machines.

Technical Specification Highlights

The 1983–1988 Yamaha Enticer 340 and Excel III manual provides high-depth data for rebuilds. Cylinder bore standard is 60 mm with a 0.05 mm taper limit. Crankshaft deflection is documented at 0.03–0.04 mm, depending on the measured position. The carburetor tuning section lists the standard #240 main jet for sea-level operation, while secondary clutch spring pre-load is specified at 160°. Chain case oil capacity is documented at 0.4 liters for proper drive maintenance. This official service publication serves as the authoritative source for the 1983–1988 Yamaha Enticer 340 and Excel III, providing complete mechanical, electrical, and chassis specifications for these classic two-stroke snowmobile platforms.

Manual FAQ, Purchase & Download Details

What parts illustrations and component breakdown diagrams are included in the engine chapters of this manual? keyboard_arrow_down

Engine section includes detailed exploded views for components like the cylinder head, cylinder assembly, and piston groupings. These illustrations show the relative positioning of internal parts for visual reference.

Is this 1983-1988 Yamaha Enticer and Excel III service manual a complete edition? keyboard_arrow_down

Document covers the 1983-1988 Yamaha Enticer 340 and Excel III series as indicated on the cover page and throughout the comprehensive seven-chapter service contents.

Are tightening specifications and clearance references listed within the engine and chassis maintenance sections? keyboard_arrow_down

Manual contains dedicated specification tables that list torque values for bolts and nuts alongside piston clearance ranges. These tables provide technical reference values for various sub-assemblies throughout the snowmobile.

Which chapters contain technical information regarding wiring diagrams or electrical system references? keyboard_arrow_down

Chapter 6 is specifically designated for electrical systems and contains reference materials related to the machine's electrical components.

Can I find fluid capacities and lubrication interval data in this service manual? keyboard_arrow_down

Document includes a section on lubrication intervals that outlines service points for the engine, drive, and body components. It also lists recommended oil and grease brands for specific maintenance points. Service data tables are provided to help users locate these capacity and maintenance references.

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