2011 Aprilia SR MAX 300 i.e. Service & Repair Manual (P/N 677514)
Aprilia Models Covered & Key Technical Specifications
Models: 2011 Aprilia SR MAX 300 i.e.
Model Years: 2011
Serial Numbers: ZAPM35600123456789, M356M
Technical Data:
- Engine displacement: 278 cm³
- Engine type: Single-cylinder, 4-stroke
- Bore x Stroke: 75 x 63 mm
- Max. power: 16.1 kW at 7,250 rpm
- Max. torque: 23 Nm at 6,000 rpm
- Compression ratio: 11 ± 0.5 : 1
- Lubrication system: Forced with lobe pump, double filter (mesh and paper)
- Cooling system: Forced circulation, approx. 1.8 liters
- Fuel system: Electronic injection with electric fuel pump
- Ignition system: Electronic inductive discharge
- Transmission: Automatic variator with torque server, V-belt, centrifugal dry clutch
- Spark plug: NGK CR8EKB (gap 0.7–0.8 mm)
- Front brake: Ø 260 mm disc
- Rear brake: Ø 240 mm disc
- Battery: 12V/14 Ah
Aprilia Manual Features & Content Preview
- Developed for independent workshops and owners servicing the 2011 Aprilia SR MAX 300 i.e. maxi-scooter
- Official 289-page Piaggio & C. S.p.A. OEM publication (P/N 677514 EN, 2012 copyright)
- Contains 47 exploded-view technical diagrams, 14 electrical schematics, and 28 torque specification tables
- Authoritative reference for the M356M engine variant, detailing the precise assembly clearances and diagnostic thresholds required for professional-grade maintenance
Documentation Contents
The 2011 Aprilia SR MAX 300 i.e. service manual divides maintenance procedures into 14 core sections. These cover the entire chassis and powertrain. Inside, you will find primary vehicle characteristics, specialized tooling lists, and comprehensive service intervals. The guide details the complete electrical system, featuring complex conceptual diagrams alongside exact connector pinouts. Other chapters cover the engine starting from vehicle removal, fuel injection specifics, and suspension architecture.
This publication provides deep diagnostic troubleshooting for the ignition, braking, and cooling systems. The maintenance chart logs every major service cycle. This includes precise intervals for spark plug replacement, transmission belt servicing, and valve clearance adjustments. Having this exact data on hand ensures accurate oversight of the fuel and electrical management components during routine shop work.
Specification Highlights
The engine data section defines the 278 cm³ single-cylinder configuration. This includes the 11:1 compression ratio and a 1700 rpm idle speed. Engine oil capacity is documented at 1.3 liters. For the transmission, the text specifies 250 cm³ of dedicated gear lubricant. To maintain strict tolerance control during rebuilding, piston and cylinder assembly data spans four distinct coupling categories (M, N, O, P).
Intake valve clearance is listed at 0.10 mm in the cylinder head specification table. Cylinder head bolt torque values follow a documented multi-stage sequence within the engine assembly data. An injection ECU manages the electrical system, with a primary HV coil resistance recorded at approximately 0.9 ohms.
Prior to performing any mechanical work, verify all shop safety protocols. Always consult a certified technician before initiating service on this equipment to prevent personal injury or component damage.
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