Engine Fluids, Gear Oil & Filter Specifications
| Engine Oil Viscosity & JASO/API Standard | SAE 5W-40 Full Synthetic (API SL/SM) |
|---|---|
| Engine Oil Drain & Refill Capacity | 1.0 L (With Filter) |
| Final Drive / Gearbox Oil Viscosity & Volume | SAE 80W-90 GL-4 (200 ml) |
| OEM Oil Filter Part Number | 82635R |
| OEM Air Filter Element Part Number | 1B000806 |
| Spark Plug Model & Electrode Gap | NGK CR8EB (Electrode gap: 0.7 - 0.8 mm) |
Field note: The 3-Valve i-Get 150cc engine in the Liberty 150 requires 1.0 L of synthetic 5W-40 engine oil during oil filter replacement. Gearbox reduction oil requires exactly 200 ml of SAE 80W-90 GL-4. For related specs on identical small-frame i-Get platforms, consult the complete Vespa Primavera 150 oil and transmission spec guide and the Vespa Sprint 150 master guide.
Ignition System
| Component | Spark Plug |
|---|---|
| OEM Part Number | NGK CR8EB |
| Dimensions | 10mm thread, 19mm reach |
| Torque Spec | 12-14 Nm |
| Electrode Gap | 0.7 - 0.8 mm |
| Cross-Compatibility | Vespa Primavera 150 |
Field note: Exceeding 14 Nm on this plug risks stripping the aluminum head threads on the i-Get engine family, a repair that requires a helicoil insert and full head removal in most cases. Always stop tightening once the plug bottoms out and crushes the gasket, roughly 1/4 to 1/2 turn past hand-tight.
Engine Internals: Cylinder Head & Crankshaft
| Part No. | Qty | Part Name | Notes |
|---|---|---|---|
| 851102 | 1 | Head Comp., Cylinder | i-Get 3-valve design; resurface flatness < 0.05mm |
| 851115 | 1 | Valve, Exhaust | Check margin thickness > 0.5mm before reuse |
| 851122 | 2 | Valve, Inlet | Two intake valves per 3-valve design |
| 851140 | 1 | Gasket, Head Cyl. | Single-use metal composite; never reuse |
| 851165 | 1 | Camshaft Comp. | Chain-driven; inspect all three lobes for wear |
| Part No. | Qty | Part Name | Notes |
|---|---|---|---|
| 851210 | 1 | Crankshaft Comp. | Check runout < 0.03mm on V-blocks |
| 851225 | 1 | Connecting Rod | Big-end side clearance spec: 0.1-0.4mm |
| 851250 | 1 | Piston (Std.) | Domed piston for 3-valve combustion chamber |
| 851265 | 1 | Piston Pin | Lightly oil before install; hand-pressure fit only |
| 851270 | 2 | Piston Pin Clip (Circlip) | Directional installation — see expert note below |
Field note: On the i-Get 3-valve engine shared with the Vespa Primavera 150, the piston pin circlips must
be installed with the opening gap oriented 90° to piston travel, never fore-or-aft. A backward clip
compresses under load until it ejects into the crankcase, and the freed pin gouges the cylinder wall on
the next stroke, destroying the bore. Use only new clips and confirm full seating by feel.
OEM Body Panels & Color Matching
| Part Name | Grigio Achille | Nero Vulcano | Bianco Perla |
|---|---|---|---|
| Front Leg Shield | Consult Service Manual | Consult Service Manual | Consult Service Manual |
| LH Side Cover | Consult Service Manual | Consult Service Manual | Consult Service Manual |
| RH Side Cover | Consult Service Manual | Consult Service Manual | Consult Service Manual |
| Rear Fender | Consult Service Manual | Consult Service Manual | Consult Service Manual |
| Floor Board Panel | Consult Service Manual | Consult Service Manual | Consult Service Manual |
Field note: Piaggio's painted plastic panels become progressively brittle at the mounting tabs after
roughly three years of UV exposure. Never use an impact driver on body screws, and apply silicone grease
(never petroleum-based) to rubber grommets before removal so panels flex free without cracking.
Official Technical Reference
The specifications above are cross-checked wherever possible, but this guide does not replace the factory service manual. Before ordering parts or performing a repair, confirm current fitment and revision bulletins directly with Piaggio.
Visit Piaggio Official Site & Parts Resources