Engine conversion kit 50cc to 125cc incl. cylinder, transmission, crankshaft -OEM QUALITY 125 ccm 3 channel- Vespa PV125, ET3 125, PK125 S, PK125 XL2, PK125 ETS

Preview: Engine conversion kit 50cc to 125cc incl. cylinder, transmission, crankshaft -OEM QUALITY 125 ccm 3 channel- Vespa PV125, ET3 125, PK125 S, PK125 XL2, PK125 ETS

Description

This is a very successful replica of the original cylinder of the performance Vespa Primavera, the ET3 (as well as the later PK125 models). The designation ET3 stands for electronicignition and 3 overflow channels(Travasi 3). Which is already the most important improvement over the two-channel cylinder. The third overflow channel (also called boost port) helps to a significantly better performance.
Last installed in the PK ETS Piaggio gives a whopping 97kmh for this model as top speed. All this with 20mm carburetor and normal crankshaft.

Bore: Ø55mm
Stroke: 51mm (std.)
Displacement: 121ccm
Stud bolt exhaust: M8x1.25
Stud distance exhaust: 56mm (like original PK125)

This well-made and solid cylinder is recommended as a powerful replacement for the original cylinder of the Primavera models or as a stable and sovereign tuning for the 50cc models. These then of course require other components of the 125cc variant: crankshaft, cylinder cover, studs, cylinder head, carburetor, transmission, exhaust.

Conclusion: The ET3 cylinder is the perfect way to build a stable and fast engine that does not have to hide with its performance. Also this cylinder comes with piston, piston pin, piston rings , and the piston pin clips. Piston rings 2x1,5mm.
Exhaust studs (not included).

NOTE: The cylinder already has the modern hole pattern for the Vespa PK exhaust systems (8mm studs with 56mm spacing). Original PV/ET3 exhaust systems still use a spacing of 52mm here. The manifold should be adjusted accordingly (when using original ET3 exhaust systems) or a matching aluminum manifold should be used (when using orig. PV125 exhaust systems). Modern exhaust systems usually already have a matching manifold.

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€319.00 *

incl. VAT plus shipping costs

Available immediately (delivery time 1-3 working days*)

P For this item you get fidelity point/s

OEM numbers (for comparison purposes only)
Piaggio	151981, 243473, 197592, E.3950, E.8319, E8319

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