Model Variants:
T4-350, T4-350 R-E, T4-350 RE, T4-500, T4-500 E RE
Chassis Code Primary:
T4-350 / T4-500 (specific VIN range may apply for exact year identification)
Engine Code Primary:
Likely derived from the Rotax engine designation used by Cagiva, e.g., 350cc single-cylinder or 500cc single-cylinder. Specific codes not provided in source data.
Market Segment:
Dual-sport / Enduro motorcycle segment of the late 1980s.
Key Competitors:
Competed against other European and Japanese dual-sport motorcycles from manufacturers like Yamaha (XT series), Honda (XL series), Suzuki (DR series), and BMW (GS series).
Design Philosophy:
Designed for versatility, capable of both on-road commuting and off-road exploration, often featuring robust construction and reliable Rotax engines.
Distinguishing Characteristics:
Italian design flair combined with proven engine technology (often Rotax). The 'R-E' or 'RE' designation likely indicates electric start and/or improved electrical systems.
Coverage Scope:
Complete service, repair, and workshop procedures for the specified Cagiva models.
Page Count Estimate:
Likely 300-500 pages (typical for comprehensive service manuals of this era and complexity).
Manual Type:
Service Repair Workshop Manual
Languages:
Multi-language (Italian, English, French, German)
Format Description:
Digital (likely PDF) or printed copy.
Engine Systems:
Engine assembly, disassembly, tuning, carburetor service, ignition system, cooling system (if applicable), lubrication system.
Transmission Systems:
Gearbox disassembly, assembly, maintenance, clutch service, shift mechanism.
Chassis Systems:
Frame inspection and repair, suspension (forks, rear shock absorber), steering system, wheels, and bearings.
Braking Systems:
Front and rear brake caliper service, master cylinder maintenance, brake line replacement, bleeding procedures.
Electrical Systems:
Wiring diagrams, lighting system, charging system (alternator, battery), starter motor, ignition system troubleshooting, component testing.
Fuel System:
Carburetor model identification, disassembly, cleaning, adjustment, fuel tank and petcock service, fuel line maintenance.
Bodywork And Trim:
Fairing removal and installation, seat, fuel tank, fenders, and other body panels.
Routine Maintenance:
Oil change intervals and specifications, air filter cleaning/replacement, spark plug service, chain adjustment and lubrication, brake fluid replacement.
Diagnostic Procedures:
Troubleshooting guides for common issues, electrical system diagnostics, engine performance problems.
Repair Procedures:
Detailed step-by-step instructions for component overhauls and replacements (e.g., engine rebuild, suspension fork rebuild).
Technical Adjustments:
Carburetor synchronization and jetting, ignition timing, valve clearance adjustment, chain slack adjustment.
Depth Of Coverage:
Comprehensive, covering everything from basic rider maintenance to full engine and chassis overhauls.
Diagnostic Tools Required:
Standard motorcycle tools, possibly a multimeter for electrical diagnostics, feeler gauges for valve clearance.
Torque Specifications:
Detailed torque values for all critical fasteners throughout the motorcycle.
Clearances And Tolerances:
Specifications for valve clearances, piston-to-cylinder wall clearance, bearing tolerances, etc.
File Format:
Digital (e.g., PDF) or Print
Print Quality Expectation:
High-quality reproductions with clear diagrams and text.
Binding Type:
If printed, likely bound for durability in a workshop environment (e.g., spiral-bound or saddle-stitched).
Paper Type Expectation:
Durable paper stock suitable for workshop use, potentially gloss or semi-gloss for diagrams.
Engine Type 350:
Single-cylinder, four-stroke, air-cooled (likely Rotax design).
Engine Type 500:
Single-cylinder, four-stroke, air-cooled (likely Rotax design).
Bore Stroke 350 Estimate:
Approximately 78mm x 72mm (typical for a 350cc single).
Bore Stroke 500 Estimate:
Approximately 85mm x 88mm (typical for a 500cc single).
Displacement 350:
Approximately 348cc
Displacement 500:
Approximately 498cc
Horsepower 350 Estimate:
Around 25-30 HP (at the crank).
Horsepower 500 Estimate:
Around 30-35 HP (at the crank).
Torque Estimate:
Torque figures would be dependent on the specific engine tune, but generally suited for low-end grunt for off-road use.
Carburetion:
Likely a single Mikuni or Dell'Orto carburetor (e.g., VM series or PHM series) for both models.
Fuel Delivery:
Gravity feed from fuel tank via petcock.
Infotainment System:
None (basic motorcycle electronics of the era).
Driver Assistance Features:
None (basic motorcycle electronics of the era).
Connectivity Features:
None (basic motorcycle electronics of the era).
Headlight Type:
Halogen bulb, 12V.
Starting System:
Kick-start and Electric Start (indicated by 'R-E' or 'RE' variants).
Oil Change Interval:
Typically every 3,000-5,000 km or annually, refer to manual for exact specification.
Valve Clearance Interval:
Usually around 6,000-10,000 km, subject to confirmation in the manual.
Chain Maintenance Interval:
Regular cleaning and lubrication every 500-1,000 km and adjustment as needed.
Engine Oil Type:
Likely SAE 10W-40 or 20W-50 motorcycle-specific engine oil, API SG or higher. Manual will specify exact grade and capacity.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid, depending on system specification. Manual will confirm.
Coolant Type:
Not applicable, as these are likely air-cooled engines.
Common Wear Items:
Carburetor tuning and synchronization, chain and sprockets, brake pad wear, fork seals.
Electrical Gremlins:
As with many bikes of this era, electrical connections and wiring can degrade over time, leading to intermittent issues. Proper inspection and cleaning are key.
Carburetor Issues:
Yamaha Mikuni carburetors can sometimes suffer from needle wear or jet blockages if not properly maintained, affecting idle and fuel mixture.
Engine Performance Degradation:
Age-related wear on piston rings and valve guides can lead to reduced compression and oil consumption. Regular maintenance is crucial.
Cagiva Heritage:
Cagiva was an Italian motorcycle manufacturer founded in 1978. Known for its spirited designs and use of competitive engines, often from European partners like Rotax.
T4 Series Evolution:
The T4 series represented Cagiva's entry into the dual-sport market. The 350 and 500cc models offered different performance levels within the same chassis and styling framework. Later iterations might have seen updates to suspension, braking, and engine tuning.
Production Period:
The T4 series, including the 1987 models, was produced throughout the late 1980s and early 1990s.
Manufacturing Location:
Italy
