Segment:
Lightweight dual-sport/off-road motorcycle segment.
Target Audience:
Enthusiasts and mechanics seeking detailed information for maintaining and repairing their Yamaha DT175D.
Typical Competitors:
Honda XR series, Suzuki RM series, Kawasaki KDX series, KTM models of similar displacement in the early 1990s.
Manual Utility:
Provides dealership-level repair information, enabling users to perform complex maintenance and repairs themselves.
Delivery Method:
Instant digital delivery via download, eliminating shipping wait times.
Cost Effectiveness:
Positioned as the 'lowest price around,' offering value for money compared to physical manuals or dealership service costs.
Primary Coverage:
Comprehensive service, repair, and workshop procedures
Specific Systems Covered:
Engine, General Information, Transmission, Chassis, Lighting, Steering, Seats System, Clutch, Suspension, Locks, Brakes, Lubrication, Electrical, Frame, Fuel System, Battery
Estimated Page Count:
Varies by specific manual, but described as 'complete' and potentially large files. Typical for a full service manual of this era could range from 200-500+ pages.
Type:
Service Repair Workshop Manual
Format:
Adobe Acrobat PDF
Engine Mechanical:
Engine assembly, disassembly, inspection, repair, and tuning of internal components (pistons, rings, crankshaft, connecting rod, cylinder head, valves, etc.).
Engine Fuel System:
Carburetor disassembly, cleaning, adjustment, and troubleshooting; fuel tank, fuel lines, and fuel filter maintenance.
Engine Lubrication:
Oil pump operation, oil flow paths, lubrication schedules, and fluid specifications.
Transmission System:
Gearbox internal components, shifting mechanisms, clutch operation, and transmission fluid requirements.
Clutch System:
Clutch plate inspection, adjustment, replacement, and hydraulic/cable operation (if applicable).
Electrical System:
Wiring diagrams, ignition system components (CDI, spark plug, coil), lighting circuits (headlight, taillight, turn signals), charging system (stator, regulator/rectifier), battery maintenance.
Chassis Frame:
Frame inspection, alignment, and repair procedures.
Suspension System:
Front forks (oil levels, seals, springs) and rear shock absorber service and replacement.
Steering System:
Steering head bearing inspection, adjustment, and replacement.
Brake System:
Front and rear brake systems (drum or disc depending on specific DT175D configuration), brake pad/shoe inspection and replacement, brake fluid (if hydraulic), cable adjustment.
Wheels Tires:
Wheel bearing service, spoke tensioning, tire pressure recommendations, and tire replacement.
Bodywork Seats:
Seat system removal and installation, basic body panel information.
Locks Ignition:
Key and lock cylinder servicing.
Maintenance Procedures:
Regular scheduled maintenance, lubrication points, adjustments (throttle, clutch, brakes), fluid changes.
Troubleshooting:
Diagnostic guides and procedures for identifying and resolving common problems across all systems.
Disassembly Assembly:
Step-by-step instructions for dismantling and reassembling major vehicle components.
Rebuild Procedures:
Detailed instructions for rebuilding major components like the engine and transmission.
Torque Specifications:
Crucial torque values for fasteners during assembly and disassembly.
Depth:
Comprehensive, covering everything from basic adjustments and maintenance to in-depth troubleshooting and complete component rebuilds, suitable for professional technicians and experienced DIY enthusiasts.
Type:
PDF (Adobe Acrobat)
Searchability:
Likely text-searchable PDF, allowing for quick navigation to specific topics.
Recommendation:
Printable on demand, allowing users to print only necessary sections to avoid damaging an original paper manual.
For Printed Manuals:
Designed to be printed and placed in a 3-ring binder for easy reference.
For Printed Manuals:
Typically intended for standard office paper, allowing for cost-effective printing.
Engine Type:
2-stroke, air-cooled, reed valve induction
Displacement:
171cc (approximate, based on DT175 models of this era)
Bore X Stroke:
66.0 mm x 50.0 mm (typical for DT175)
Compression Ratio:
6.7:1 (typical for DT175)
Carburetor:
Mikuni VM26SS (typical for DT175 models of this era, though variations exist)
Horsepower:
Approximately 17-20 HP (varies by specific tuning and regulations)
Torque:
Not explicitly stated, but typically around 13-15 Nm
Fuel Type:
Unleaded gasoline with 2-stroke oil pre-mix
Fuel Mix Ratio:
Typically 20:1 or 50:1 (manual would specify precise ratio and oil type)
Crash Test Data:
Not applicable for motorcycle manuals of this era.
Braking System:
Front: Drum or Disc (model dependent). Rear: Drum.
Lighting:
Headlight, taillight, brake light, (potentially front/rear turn signals depending on spec).
Frame Construction:
Steel tubular frame, designed for off-road durability.
Oil Change:
Details would be in the manual; typically every 2000-3000 km or annually for transmission oil (if applicable) and periodic top-end checks for 2-strokes.
Spark Plug Service:
Regular inspection and gap adjustment, replacement as needed (interval depends on usage and plug type).
Air Filter Service:
Frequent cleaning/replacement, especially for off-road use.
Engine Oil:
Specific 2-stroke oil type and pre-mix ratio (e.g., Yamalube 2M or equivalent, specified in manual).
Transmission Oil:
Yamaha recommended gear oil (e.g., SAE 80W API GL-4), capacity would be specified in the manual.
Fork Oil:
Specific weight and quantity for front forks (e.g., SAE 10W, capacity per fork leg specified in manual).
Common Wear Items:
Piston rings, crank seals, clutch plates, swingarm bushings, wheel bearings, and fork seals are common wear items on 2-stroke dual-sport bikes of this age.
Carburetor Clogging:
Common with older bikes due to fuel degradation and infrequent use; requires regular cleaning and proper fuel storage.
Electrical Gremlins:
Corroded connectors, failing regulator/rectifier, or aging wiring harness can cause intermittent electrical issues.
Yamaha History:
Yamaha Motor Company, established in 1955, has a long and storied history in motorcycle manufacturing, known for performance and reliability in various racing disciplines and street bikes.
Dt Series:
The DT series was Yamaha's pioneering line of dual-sport motorcycles, designed for versatility on and off-road. The DT175 was a popular model within this series, evolving through various iterations.
Production Period:
The DT175 model line was produced from the early 1970s through the 1980s, with variations continuing into the early 1990s, as indicated by the 1992 manual.
Manufacturing Location:
Typically manufactured in Japan by Yamaha.
