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Polini Item number: 1010004
Polini

Cylinder -POLINI cast iron 85 cc Sport- Vespa V50, PK50

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179,00 €*
available immediately
Shipping weight 2,38 kg
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The 85 cc POLINI cylinder is the 50 mm bored version of the POLINI 75.

Polini has shifted the power and torque curve towards lower speeds by removing more material at the cylinder base than the 75. As a result, the channels are not fully released and the control times are shortened. In addition, a piston with a different dome contour was used.

This makes the 85 cc POLINI very well suited for all lazy cruisers. Also here the transmission ratio should be adapted due to the increased displacement (at least 3.00). The POLINI 85 is also best tasted with a torque strong exhaust like the ET3 or the SS 50/90 Banana.

NOTE: New version with modified cylinder head (cooling fins on the underside). Spark plug with long thread is required (e.g. B8ES or W3CC).
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Anonym  05/04/2015

Hat ordentlich Kraft, vom Layout definitiv was für Cruiser. Perfekt für den 2-Personen Betrieb in der Stadt und für Fahrer die auf niedrigere Drehzahlen stehen. Kann noch mit einem 16/16 Vergaser betrieben werden. Mindestens 3.72 max 3.00 Primär

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General
Performance class
Sport
 
Piston pin
Diameter
12 mm
 
Spark plugs
Thread type
M14x1,25
Thermal value NGK
BR8HS, B8HS
Spark plug thread
kurz
 
Cylinder
Drill hole
50 mm
Type of cooling
luftgekühlt
Displacement
84 cm³
Motor type
2-Takt
Material
Grauguß
Piston raceway material
Grauguß
Cylinder gasket set included
ja
Cylinder head included
ja
Outlet shape
1-teilig (oval)
Exhaust assembly
Flansch
Flange type
2-Schrauben
Distance between exhaust studs
52 mm
Threaded exhaust studs
M6
Number of boost ports
2
Number of transfers (incl. boost ports)
6
 
Crankshafts
Stroke
43 mm
 
Piston
Number of piston rings
2
Piston manufacturing method
gegossen
 
Piston rings
Piston ring type
Rechteck-Ring
Piston ring thickness
1,2mm
 
Piston clips
Piston clip type
Doppel G-Typ
Wire gauge Piston clip
1,0mm
 
Cylinder heads
Cylinder head type
einteilig
 
OEM numbers (for comparison purposes only)
Polini:
140.0059, 1400059, P140.0059, P1400059
Montageanleitungpdf
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