Model:
T4-350 R-E / T4-500 E
Sub Model:
R-E (350cc), E (500cc)
Generation:
First Generation
Chassis Codes:
Likely designated by engine size (e.g., T4 350, T4 500) with specific R-E/E variations.
Engine Codes:
Specific engine codes would be detailed within the manual based on displacement and variant (e.g., 348cc, 478cc).
Market Position:
The Cagiva T4 series, particularly the 350 and 500 models, were positioned as capable dual-sport or adventure touring motorcycles in the late 1980s, offering a blend of on-road usability and off-road versatility. They competed with other European and Japanese offerings in the middleweight adventure segment.
Target Audience:
Adventure riders, dual-sport enthusiasts, riders seeking a robust and reliable machine for touring and light off-road excursions.
Competitive Analysis:
Competed against models like the Yamaha XT600, Honda Transalp XL600V, and potentially some BMW GS models, offering Italian flair and distinct styling. Cagiva aimed to provide a robust and reliable machine for exploration and touring.
Key Features:
Robust chassis design, liquid-cooled two-stroke or single-cylinder four-stroke engines (depending on exact variant, though T4 is typically associated with single-cylinder), reliable shaft drive (a key differentiator for many Cagiva models of this era), comfortable riding position for touring, capable suspension for varied terrain.
Drive System:
Shaft drive system, which requires less maintenance than a chain drive and is often more durable for touring and adventure use.
Coverage Areas:
Engine, transmission, chassis, electrical system, bodywork, suspension, brakes, fuel system, cooling system, exhaust system, lubrication, troubleshooting, maintenance.
Troubleshooting Guides:
Includes systematic guides for identifying and resolving common problems with sections dedicated to 'symptoms and causes'.
Page Count:
Actual page count not specified, but factory service manuals are typically comprehensive, often exceeding 200-500 pages.
Manual Type:
Factory Service Repair Manual
Language:
English (Assumed, standard for most international service manuals unless otherwise specified).
Systems Covered:
Ignition timing procedures, carburetor synchronization, suspension sag adjustment, wheel alignment, spark plug specifications (type, gap), valve clearances (intake/exhaust).
Lighting System:
Covers headlight, taillight, turn signals, brake lights, and dashboard illumination, including bulb types and troubleshooting for electrical issues.
Procedures Included:
Diagnostic flowcharts for common starting and running issues, troubleshooting electrical faults, gear troubleshooting, clutch engagement/disengagement checks, brake pad replacement, caliper servicing, fork seal replacement, rear shock absorber removal/installation, battery testing and charging system diagnosis.
Engine Rebuild:
Detailed instructions for complete engine disassembly, cleaning, inspection of components (pistons, rings, crankshaft, bearings), and reassembly with correct clearances and torque values.
Technical Depth:
Comprehensive. Covers from basic user maintenance to in-depth mechanical repairs, diagnostics, and specifications for professionals. Includes torque specifications, clearances, timing procedures, and diagnostic flowcharts.
Diagnostic Procedures:
Includes specific procedures for diagnosing electrical faults using multimeters, checking ignition system output, and troubleshooting engine performance issues based on symptoms.
Wiring Diagrams:
Comprehensive, color-coded wiring diagrams for all electrical systems, aiding in diagnosis and repair of electrical issues.
File Format:
PDF (Portable Document Format)
Searchable Text:
Likely searchable if the PDF was created from a text-based source; otherwise, it may be image-based only. Advanced OCR processing would be required for full searchability if image-based.
Print Quality:
Digital (High-resolution scans for clarity of text and diagrams, assuming professional reproduction).
Binding Type:
N/A (Digital PDF format)
Paper Type:
N/A (Digital PDF format)
Primary Engine:
Single-cylinder, four-stroke. Specific engine variants for T4-350 R-E and T4-500 E are crucial. 350cc likely refers to a displacement around 348cc, and 500cc around 478cc. These engines were known for their torque and reliability in demanding conditions.
Bore Stroke:
Specific bore and stroke dimensions for both 350cc and 500cc engines would be provided in the manual for precise engine work.
Valve Train:
Details on the valve train mechanism (e.g., OHC, DOHC, number of valves per cylinder) and its adjustment procedures.
Performance:
Horsepower and torque figures would vary between the 350 and 500cc models. Typically, a 350cc single might produce around 25-30 hp, while a 500cc single could be in the 30-35 hp range. The focus was on usable power for traversing varied terrain.
Compression Ratio:
Compression ratios for the respective engines will be listed, critical for engine rebuilds and performance tuning.
Fuel System:
Carburetor-fed. Likely single carburetor setup (e.g., Mikuni or Dell'Orto). Specific carburetor model and jetting details are essential and found within the manual.
Fuel Tank Capacity:
Fuel tank capacity is an important specification for touring, typically in the 15-20 liter range for adventure bikes of this class.
Standard:
5-speed or 6-speed manual gearbox. Shaft drive is a signature feature of many Cagiva dual-sport models of this era, offering reduced maintenance compared to chain drive.
Clutch Type:
Wet, multi-plate clutch system.
Optional:
Not applicable for this model year and type.
Features:
Wet multi-plate clutch, robust shaft final drive, integrated oil cooler (potentially on 500cc variant) for enhanced durability.
Gear Ratios:
Specific gear ratios for each gear will be detailed, allowing for analysis of acceleration and top-speed characteristics.
Exterior:
Dimensions (length, width, height, seat height) and wheelbase would be specific to the T4 models and detailed in the manual. Dual-sport ergonomics for comfortable riding.
Wheelbase:
Wheelbase measurement, crucial for handling characteristics and stability.
Ground Clearance:
Important for off-road capability, indicating the minimum distance between the ground and the lowest point of the frame/engine.
Interior:
N/A (Motorcycle)
Cargo:
Designed for carrying luggage with provisions for racks and bags. Cargo capacity would be defined by aftermarket accessories.
Weights:
Dry weight and wet weight for both 350 and 500cc models would be listed in the manual. Typically in the range of 130-150 kg (dry) for this class of motorcycle.
Payload Capacity:
While not explicitly 'payload' like a car, the manual might indicate recommended maximum load for rider and luggage to maintain handling and durability.
Ratings:
Motorcycle safety ratings from independent bodies were not as prevalent or standardized in 1987 as they are for cars today. Focus would be on rider skill and machine condition.
Active Features:
Responsive braking system (typically front and rear disc brakes), agile handling characteristics, knobby tires for off-road grip.
Brake System Specs:
Front: Hydraulic disc brake, likely single rotor. Rear: Hydraulic disc brake, likely single rotor. Details on caliper type and piston count will be in the manual.
Passive Features:
Sturdy frame construction, protective bodywork (fairing, fenders), robust suspension components designed to absorb impact.
Suspension Travel:
Front and rear suspension travel figures are critical for off-road capability and are usually specified.
Service Intervals:
Typical intervals for oil changes: every 3,000-5,000 km. Valve clearance checks: every 6,000-10,000 km. Chain/shaft drive inspection: regular checks. Detailed schedules for all maintenance tasks are in the manual.
Spark Plug Maintenance:
Recommended intervals for spark plug inspection, cleaning, and replacement, including recommended spark plug part numbers (e.g., NGK, Denso).
Fluid Specifications:
Engine Oil: Typically SAE 10W-40 or 20W-50 motorcycle-specific oil. Brake Fluid: DOT 3 or DOT 4. Gearbox Oil: Specific gear oil or engine oil viscosity as per manual recommendation. Coolant: Ethylene glycol-based antifreeze/coolant.
Fork Oil Type Capacity:
Specific fork oil viscosity (e.g., Showa SS-05, SAE 5W) and oil level or volume per fork leg.
Gearbox Oil Spec:
Specific type and viscosity of oil for the transmission, and its capacity.
Known Issues:
Common issues for motorcycles of this era can include electrical connection corrosion, carburetor gumming from fuel storage, wear in suspension components, and potential issues with the shaft drive seals if not maintained. Specific Cagiva T4 issues would be detailed in advanced troubleshooting sections of the manual.
Carburetor Cleaning Frequency:
Guidelines on how often to clean and service the carburetor, especially if the bike is stored for extended periods.
Brand Heritage:
Cagiva is an Italian motorcycle manufacturer with a history dating back to 1978. Known for producing a range of motorcycles, from smaller displacement bikes to larger touring and off-road machines. The T4 series represents their entry into the adventure touring market.
Model Evolution:
The T4 series was part of Cagiva's lineup to offer versatile motorcycles for both on-road and off-road use. It evolved from earlier Cagiva enduro and off-road models, incorporating features suited for longer-distance travel and greater comfort. Later models in the T4 line may have seen engine and chassis updates.
Production:
Produced in the late 1980s, with the 1987 model year being a key introduction or iteration. Cagiva motorcycles were manufactured in Italy.
