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Cylinder kit -PINASCO Zuera Ø57,5mm VTR SS 135cc- Vespa V50, PV125, ET3, PK50, PK80, PK125

PN25031800
This item is currently not available.
€329.00 * €369.00 * (10.84% off)

incl. VAT plus shipping costs

The item is ordered and will be in stock soon
General
performance class: sport
Gudgeon pins
diameter: 15 mm
Spark plugs
thread type: M14x1,25
thread spark plug: long
heat rating NGK: B9ES
Cylinders
displacement: 132.42 cm³
bore: 57.5 mm
engine type: 2-stroke
type of cooling: air cooled
material: aluminium
material piston cylinder surface: Ceramic
cylinder head inclusive:
cylinder gasket set inclusive:
number of transfers (incl.boost ports): 5
number of boost ports: 1
shape exhaust port: single port (oval)
exhaust mounting: flange
flange type: 2 studs
exhaust bolt pitch: 62 mm
thread exhaust studs: M8
Crankshafts
stroke: 51 mm
Pistons
number of piston rings: 1
production method piston: cast
Piston rings
piston ring type: common ring
thickness rings: 1,0mm
Circlips
circlip type: G-type
wire size of circlip: 1,25mm
Cylinder heads
cylinder head type: one piece
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The Pinasco 135cc ZUERA cylinder, named after a Spanish race track, comes out of the box with a...Continue reading

Description


The Pinasco 135cc ZUERA cylinder, named after a Spanish race track, comes out of the box with a rather sporty 125/185 head angle. This already puts it above the Polini Evolution 1, which obviously was the inspiration for the design here. The VTR version offers a much larger exhaust diameter (Ø35mm) and a 62mm hole diameter. So it is now also suitable for the big exhaust systems like the Big Bertha of Scherer and Ludwig. An O-ring gasket closes the changes at the exhaust port.

Unlike other cylinders, the openings of the overflow channels in the cylinder base are already open. This requires the adjustment of the fan duct at the stator housing (explained in the manual enclosed with the cylinder). The cylinder base has a diameter of 61.3mm, therefore it is not necessary to enlarge the cylinder base bore in the engine housing.

The one-piece exhaust is manufactured with about 66% width in the direction of durability. We would assume that the Zuera 135SS, due to its more sporty exhaust geometry, is slightly above the Polini Evolution I in terms of power output.
Due to the angles of the overflow channels facing the exhaust, the Zuera 135SS also supports exhaust systems that like to reach into higher rpm regions.

Technical details

  • Bore 57.5mm
  • Stroke 51mm
  • Capacity 135ccm
  • 5 overflow channels
  • One-piece outlet, trapezoidal, chord 38.5mm ≈ 66%
  • Outlet stud M8(not included, we recommend Piaggio)
  • hole-punched outlet flange 62mm (as exhaust gasket we recommend BGM)
  • outlet cross section Ø~35mm
  • cylinder base gaskets three pieces in 0,1mm
  • cylinder base Ø61,3mm (suitable for Piaggio)
  • cast piston 169gr, one piston ring 1mm
  • piston pin safety device type G, 1mm
  • cylinder head 8-fold screwed (stud bolt + 4pcs. M8x25mm)
  • spark plug 14mm, long thread, recommendation B9ES, B10ES
  • spark plug position, central
  • ignition timing 17° (recommendation from Pinasco)
  • control angle 125°/185° with a pinch dimension of 1.0mm and 51mm stroke

the pinch edge of 1.0 - 1.1mm can be adjusted using the 3 0.1mm cylinder base gaskets supplied. When it comes to cylinder head gaskets, Pinasco keeps a discreet distance, also with regard to the sealing and the connection to the exhaust. An exhaust gasket suitable for the Zuera SS135 is not included, nor are the required exhaust studs.

The PK125 exhaust gasket from Piaggio fits the flange. However, the SS135 outlet is 35mm x 30mm. This means that the PK125 exhaust gasket will not fit here due to the smaller inner diameter. Alternatively, you can also use the BGM exhaust gasket.

FAZIT
The bottom line is that Pinasco has created a sporty cylinder that offers good performance with little effort. Whether with SHB19, Polini CP carburettors and Piaggio or Polini Banana or with a Keihin 28 and a Franz - the Pinasco SS135 can be used to create performance ranges from moderate to sporty with the right environment of carburettor and exhaust.

scope of delivery

  • cylinder and cylinder head
  • piston, incl. Piston, incl. piston pin, piston ring and safety devices
  • fixing material cylinder head
  • gasket set cylinder base
  • plug for cylinder cover

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