The Tri-Moto YTM 225 is a robust three-wheeled All-Terrain Vehicle (ATV) produced from 1983 to 1986. Engineered by, this model features a reliable air-cooled, four-stroke SOHC 223 cc engine, delivering approximately 14-15 horsepower, coupled with a 5-speed manual transmission and shaft drive. Its design prioritizes durability and performance for off-road use, making it a capable machine for various terrains. The Tri-Moto YTM 225 is known for its straightforward mechanics and the quality associated with 's manufacturing heritage.
This comprehensive service repair manual, written in English, provides in-depth guidance for the Tri-Moto YTM 225 covering the model years 1983 through 1986. It details essential maintenance procedures, step-by-step repair instructions based on complete disassembly, and troubleshooting specific to the electrical system. The manual includes hundreds of photos and illustrations, along with numbered instructions and cautionary notes, to assist both do-it-yourself enthusiasts and experienced mechanics. Its scope encompasses all aspects of the vehicle, including the fuel, cooling, lubrication, engine, clutch, transmission, brakes, suspension, steering, frame, and electrical systems, ensuring comprehensive support for vehicle upkeep and repair.
Model Years Covered:
1983, 1984, 1985, 1986
Product Name:
Yamaha Tri-Moto YTM 225 1983-1986 Service Repair Manual
Target Audience:
Do-it-yourselfers and experienced mechanics seeking cost-effective vehicle maintenance
Value Proposition:
Inexpensive way to keep vehicle working properly; avoids costly dealership repairs and shipping delays
Manual Benefits:
Comprehensive, detailed, visual, easy-to-navigate, cost-saving
Estimated Page Count:
Hundreds of pages
Type:
Official Factory Service Repair Manual
General Information:
Covered
Engine Lubrication System:
Covered
Engine Removal Installation:
Covered
Crankshaft Transmission:
Covered
Electrical System:
Covered
Repair Procedures:
Step-by-step instructions based on complete disassembly
Maintenance:
Detailed substeps expand on repair procedure information
Troubleshooting:
Included with electrical service procedures
Depth:
Comprehensive: do-it-yourselfer to experienced mechanic
Visual Aid Quality:
Hundreds of photos and illustrations, enlarged inset for detailed parts examination
Guidance Features:
Numbered instructions, bold figure numbers, notes, cautions, and warnings
Compatibility:
All PC based Windows operating systems and Mac
Printability:
Printable without any restriction
Binding Method:
N/A (Digital Download)
Paper Quality:
N/A (Digital Download)
Delivery:
Download link on checkout page after payment
Software Required:
Adobe PDF Reader
Engine Type:
Air-cooled, Four-stroke, SOHC
Bore X Stroke:
66.0 mm x 65.0 mm
Horsepower:
Approximately 14-15 HP (est. based on similar Yamaha engines of the era)
Torque:
Not explicitly stated, but typical for this displacement class
Carburetor Type:
Mikuni VM26SS (typical for YTM225 models)
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
3.0 L (0.8 US gal)
Type:
5-speed manual with constant mesh, wet multi-disc clutch
Type:
N/A (single transmission configuration)
Length:
1850 mm (72.8 in)
Height:
1035 mm (40.7 in)
Wheelbase:
1260 mm (49.6 in)
Dry Weight:
170 kg (375 lbs)
Wet Weight:
N/A (typically estimated higher than dry weight)
Crash Test Ratings:
N/A (ATV not subject to automotive crash testing standards)
Braking System:
Front: Drum brake, Rear: Drum brake
Lighting:
Headlight, Taillight, Brake light
Features:
N/A (Basic ATV design of the era)
Oil Change Interval:
Refer to manual for specific intervals (typically every 1000-2000 km or annually)
Spark Plug Replacement:
Refer to manual for specific intervals
Engine Oil Type:
Yamalube 4 (or equivalent SAE 10W-30 API SE classification API SG specification API SH specification)
Engine Oil Capacity:
Refer to manual (typically around 1.5-2.0 liters)
Transmission Oil Type:
Yamaha Gear Oil (or equivalent SAE 80 API GL-4)
Transmission Oil Capacity:
Refer to manual
Brake Fluid Type:
DOT 3 (typical for drum brakes)
Common Wear Items:
Brake shoes, tires, chain (if applicable on later models/variants), suspension bushings, carburetor tuning
Electrical Component Reliability:
Age-related degradation of wiring and connectors is possible, as detailed in the electrical system section.
Manufacturer:
Yamaha Motor Corporation, Japan
Segment:
Three-wheeled All-Terrain Vehicle (ATV)
Production Period:
1983-1986
Manufacturing Location:
Japan (likely)
Industry Acclaim:
N/A (Specific awards not detailed in product information)
