Keeway F-act / Matrix 50 – 2006 OEM Service Manual (P/N 061467)

This Keeway Italia factory workshop manual covers the F-act / Matrix 50 cc, with piston-reed induction, electric and kick starting, forced oiling, and a dry centrifugal clutch with V-belt variator drive. P/N 061467 identifies the December 2006 edition.

Italian PDF: Search, Navigation, and Diagram Detail

Text search and wiring detail: The main text is searchable, but there are no embedded PDF bookmarks. Small wire-color codes require zooming; some lines and labels in the signal circuit and full wiring diagram remain faint.

One printable PDF in Italian contains 116 pages, including two covers, one otherwise blank page, and a full-page engine illustration.

Engine, CVT, and Chassis Repair Coverage

The following are selected areas of coverage. Other topics include fuel-tap operation and cable/brake-hose routing.

• Engine repair: Step-by-step disassembly and reassembly procedures, crankcase separation, crankshaft installation, bearing and oil-seal replacement, and cylinder, piston, ring, and reed-valve inspection.

• CVT and clutch service: Engagement and lock-up tests, clutch-shoe and drum inspection, belt-width checks, pulley and roller inspection, and driven-pulley reassembly.

• Fuel and lubrication: PZ19JB carburetor settings, throttle and oil-pump cable adjustment, oil-system air bleeding, and final-drive oil service.

• Electrical diagnosis: CDI and ignition-coil testing, charging-system checks, starter-motor and relay diagnosis, fuel-gauge tests, switch continuity tables, and wiring diagrams.

• Brakes, wheels, and steering: Front caliper and master-cylinder overhaul, brake bleeding, wheel-bearing service, steering-stem and front-suspension work, and rear drum-brake inspection.

• Scheduled maintenance and fault finding: Service intervals, lubrication points, tightening specifications, and symptom/cause/remedy charts for engine, carburetor, electrical, chassis, and brake faults.

The procedures are suited to mechanics familiar with scooter disassembly and electrical testing, with access to measuring instruments and the special tools specified for internal work.

Engine Inspection and Reassembly

The engine section distinguishes components serviceable with the engine in the frame from the internal disassembly work. It covers crankshaft inspection, cylinder and piston measurement, piston-ring checks, reed-valve condition, and reassembly of the crankcase and final-drive gears.

Starter gearing, the kick-start mechanism, oil pump, intake tract, and flywheel magneto receive separate assembly instructions. Standard dimensions, wear limits, and component-specific tightening data support decisions about reuse or replacement.

The crankshaft installation warning explains how hammering it into the crankcase can affect alignment. The air-cleaner instructions also link a poorly seated or damaged filter element to accelerated piston-ring and cylinder-bore wear.

Dry Belt Drive and Final-Drive Lubrication

The CVT and clutch are treated separately from the final-drive gear oil, which matters when servicing this dry belt-drive system. Inspection extends to driven-pulley spring condition, sliding pins, seals, and belt-contact surfaces.

Exploded views of the driven pulley/clutch and movable variator show the component relationships during reassembly. The clutch section warns about stored spring force and specifically excludes dismantling the clutch-shoe unit itself.

Maintenance, Carburetor Settings, and Oil Supply

Designed for practical use in the shop, the manual gives working clearances, fuel-system settings, lubrication data, torque values, wear limits, and electrical test information.

The scheduled-maintenance table runs from the initial 1,000 km / 600 mile service through 6,000, 12,000, 18,000, and 24,000 km intervals. The air cleaner is called out for cleaning every 3,000 km, brake fluid for replacement every two years, and the brake hose every four years.

PZ19JB reference data cover throat size, main and pilot jets, needle-clip position, idle-air screw setting, and float height. Idle-speed adjustment and oil-pump control alignment are documented alongside oil-supply bleeding precautions.

The final-drive lubricant specification is SAE 90; the front hydraulic-brake service section specifies DOT 4 fluid. Forced-air cooling means there is no liquid-coolant circuit to service.

Electrical Tests and Circuit Diagrams

The electrical section includes magneto excitation-coil checks, charging-output and stator tests, regulator/rectifier resistance checks, and battery charging information. Starter-motor coverage extends to brushes, commutator condition, armature checks, and relay testing.

Fuel-gauge and sender tests distinguish gauge operation from sender resistance. Oil-level switch inspection and switch continuity tables provide further circuit-specific checks.

Representative drawings include the CDI ignition schematic, charging and lighting circuit, starter/anti-theft circuit, signal and oil-level warning circuit, and full wiring diagram. Together with the fault charts, these support tracing starting or charging faults before selecting components for replacement.

Brake, Wheel, and Steering Work

Chassis procedures cover front disc-brake pad replacement, caliper and master-cylinder inspection and reassembly, and brake bleeding. Exploded views also identify front-wheel, front-brake, steering-stem, and rear-brake components.

Rear-wheel and drum-brake work includes shoe inspection and wear-indicator alignment. Bodywork instructions cover side panels, the leg shield, and handlebar covers.

Maintaining the specified factory tolerances is critical to safe operation; verify the relevant specification before applying torque or changing engine or brake settings.

Special Tools for Internal Work

The illustrated tool list identifies T01 T-shaped guide cylinder, T02 guide cylinders in multiple sizes, T03 threaded flywheel-removal rod, T07 compression gauge, T08 piston-pin removal tool, and T10 flywheel locknut removal tool, plus a clutch clamp.

A Sample of Clearance, Float, and Gear-Oil Data

The cylinder/piston inspection table lists standard piston-to-cylinder clearance of 0.06–0.07 mm and a 0.120 mm service limit. The carburetor table gives a PZ19JB float height of 13 ±1 mm.

Final-drive oil figures are presented in different contexts: the general specifications list 0.1 L, while the reassembly section gives a 90 mL fill figure alongside its oil-level-hole reference. These appear in the general specifications and final-drive reassembly sections, respectively.