Grey cast iron cylinder with 70 cc displacement suitable for everyday use.

On the basis of this cylinder it is quite easy to build very reliable engines suitable for everyday use. Compared to the direct competitors, the performance characteristics are somewhat more pointed. This also means that there is a little more peak power.

The cylinder kit can be used with the original carburettor without any problems, but the full potential of the kit can only be used with a 17.5mm carburettor.

Even so the MALOSSI Sport benefits from a good sport or racing exhaust system. Here the performance increases again significantly.

The 70cc Malossi is THE allround cylinder. Build on it and have fun or tune it until the doctor comes there are no contradictions. Offer therefore a super basis for suitable engines no matter if touring, street surfer or racer.
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General
Performance class
Sport
 
Piston pin
Diameter
12 mm
 
Spark plugs
Thread type
M14x1,25
Thermal value NGK
B8HS
Spark plug thread
kurz
 
Cylinder
Drill hole
47 mm
Type of cooling
luftgekühlt
Displacement
68 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
54 mm
Threaded exhaust studs
M6
Number of boost ports
2
Number of transfers (incl. boost ports)
6
 
Crankshafts
Stroke
39.1 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
C-Typ
Wire gauge Piston clip
1,0mm
 
Cylinder heads
Cylinder head type
einteilig
 
OEM numbers (for comparison purposes only)
Malossi:
317133, M317133
Matching
Spare parts
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