Description
PK XL2 engine housing with modern gear shifting technology suitable for old Vespa Smallframe with two shifting cables!
Vespa Smallframe engine housing for Vespa V50, 50 Special, SS50, SR50, SS90, V90, 90 Racer, V100, PV125, ET3, PK S, PK XL (all models with two shift cables)
FEATURES
- housing type: PK125 XL2
- crankshaft type: PK 125XL2/ PK125 ETS (24/25mm cone)
- bearing seat alternator side: Ø: 38mm (PX needle bearing)
- circuit type: XL2
- circuit type: 2 flexible cables (such as V50, PV, ET3 etc.))
- Inlet: Long rotary slide (42mm)
- Inlet port: 3-hole
- Overcurrent design: original as V50, PK, PV
- Elestart possible: Yes
Technically this motor housing corresponds to that of the PK 125 XL2. It has the last and most modern construction state of this engine generation. It uses precise and modern circuit technology and has a highly developed shift cable adapter (manufactured in Germany by KR Automation) for use in vehicles with two shift cables. This works backlash-free and uses a robust chain for the deflection at the shifting gate.
Advantages of the modern XL2 technology:
- Backlash-free, needle bearing mounted shifting gate
- Shift fork with externally exchangeable shaft sealing ring
The engine housing has the stable crankshaft needle bearing of the PK ETS models. This allows the use of the ultra-stable crankshaft type ‘ETS’. This has a crankshaft stub diameter of Ø25mm.
If the case is to be used with 50-112ccm cylinders, we also offer a corresponding crankshaft with 43mm stroke (125cc =51mm stroke).
The intake manifold has the modern 3-hole mounting method. Here we offer corresponding intake manifolds with 3-hole mounting and at the same time the correct manifold course for the V50/PV/ET3 frames.
Different components from a conventional small frame motor with two switch cables (V50, PV, ET3) :
- XL2 shift fork
- crankshaft with Ø25mm alternator-side crankshaft stub, type ‘ETS’
- intake manifold with 3-hole mounting
PERFORMANCE
The SE125 housings have a long rotary vane sealing surface (42mm). This allows the inlet to be greatly enlarged, making them predestined for high-performance tuning on a rotary vane basis.
CYLINDER
The cylinder base bore is 61.5mm, making them suitable for all standard and common tuning cylinders (not Falc, Quattrini SP09 etc.). So there is no need to spindle.
delivered without bearing, without nuts, without cylinder studs but with all silent blocks / silent rubbers. In addition, the shift cable adapter for two shift cables is already completely mounted.
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