Cylinder -POLINI cast iron 50 cc- Vespa V50, PK50

Preview: Cylinder -POLINI cast iron 50 cc- Vespa V50, PK50

Description

The 50cc Polini cylinder is the sportier alternative to the 50cc DR. With a compression ratio of 9.9:1 and five overflow channels it already helps a 50 cc to a quite official performance increase.

Reacts very well on sport exhaust systems like the 125 ET 3 or the SS 50/90. Should be driven around 60 (SHB16-16) due to the high compression with super gasoline and a main jet.
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€161.90 *

incl. VAT plus shipping costs

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

P For this item you get fidelity point/s

General
performance class:	sport, standard
Gudgeon pins
diameter:	12 mm
Spark plugs
thread type:	M14x1,25
thread spark plug:	short
heat rating NGK:	B7HS
Cylinders
displacement:	50 cm³
bore:	38.4 mm
engine type:	2-stroke
type of cooling:	air cooled
material:	cast iron
material piston cylinder surface:	cast iron
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:	52 mm
thread exhaust studs:	M6
Crankshafts
stroke:	43 mm
Pistons
number of piston rings:	2
production method piston:	cast
Piston rings
piston ring type:	common ring, L-ring (Dykes-ring)
Circlips
circlip type:	double G-type
wire size of circlip:	1,0mm
Cylinder heads
cylinder head type:	one piece
OEM numbers (for comparison purposes only)
Polini	140.0091, 1400091, P140.0091, P1400091

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