2009-2012 Kymco Sento 50 / Kiwi 50 / Kiwi 100 Scooter Service Manual
Kymco Models Covered & Key Technical Specifications
Models: Kymco Sento 50, Kymco Kiwi 50, Kymco Kiwi 100
Sub-models / Variants: SD10RC, SD10RA, SD10RB, SG20TA, SG20TB
Trade Names: Sento, Kiwi
Model Years: 2009–2012
Technical Data:
- Engine type: 4-stroke, single cylinder, O.H.C. air-cooled
- Displacement: 49.5 cc (50cc models), 101.7 cc (100cc models)
- Fuel system: CVK carburetor, 17 mm (50cc) or 20 mm (100cc) venturi
- Transmission type: CVT with automatic centrifugal clutch
- Drive system: Two-stage reduction
- Engine oil capacity: 0.8 L (disassembly), 0.7 L (change)
- Transmission gear oil: 110 cc (50cc models), 120 cc (100cc models)
- Brake system: Front disc, rear drum
Kymco Manual Features & Content Preview
Kymco Sento 50 and Kiwi 50/100 Technical Documentation
- Covers 2009–2012 Kymco Sento 50, Kiwi 50, and Kiwi 100 variants, detailing specific 50cc and 100cc engine and chassis configurations
- Official KYMCO Quality Technology Division publication providing factory-authorized reference data for professional diagnostics and repair
- 100 pages of technical content, featuring torque value charts, comprehensive wiring diagrams, exploded-view component illustrations, and systematic troubleshooting flow charts
- Available as an instant download for immediate device access or printing specific sections for the shop floor
Manual Content Overview & Specifications
This consolidated reference documents essential service information across 17 technical chapters for the 4-stroke engine and chassis systems. The opening sections outline general frame cover removal and inspection routines. From there, the documentation details the lubrication and fuel systems, followed by engine removal procedures. Subsequent chapters break down the cylinder head, valve train, cylinder and piston assemblies, transmission drive pulleys, and kick starter mechanisms. Final sections focus on chassis components like wheel hubs, brake assemblies, ignition, and electrical lighting systems.
Technical values are provided for all major components to streamline workshop operations. For instance, cylinder head compression is documented at 15 kg/cm² for the 100cc variant and 14 kg/cm² for the 50cc model. The publication outlines fluid capacities, listing transmission gear oil requirements at 110 cc (50cc units) and 120 cc (100cc units). Ignition timing is specified at 28° BTDC at 4000 rpm across the range. It is crucial to verify these factory values against the specific scooter trim prior to servicing, as applying incorrect torque or fluid levels can compromise vehicle operation and rider safety. Relying on this official repair data ensures accurate adjustments without the guesswork.
Document Reference: KYMCO Quality Technology Division, Overseas Service Department
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