For: Sachs

17737

Athena 38 mm cylinder kit without mounting parts | Sachs (504), 505, 508

EUR 314,20

Incl. VAT, plus shipping costs

in stock

Only 7 pieces left.

Racing cylinder of the Athena brand for Sachs 504 (with adaptations), 505 & 508 engines, which were installed on Hercules mopeds / mopeds, among others.
Thanks to the large intake, overflow and exhaust, this tuning cylinder brings a significant increase in performance.

The intake manifold and exhaust flange are not included.

Plugs with long thread must be used.

Technical data cylinder:

  • Distance stud bolt exhaust flange: 50 mm
  • Ø Thread exhaust flange: M8
  • Ø Cylinder neck: 51.6 mm
  • Stroke: 44 mm
  • Bore: 38.0 mm
  • Thread for decompressor: M10 x 1.5 mm

Attention: For the Swiss 504 engines (42 mm stroke), the following modifications must be made to the cylinder:

  • Adjust cylinder base and gasket as shown in Figure 5.
  • The cylinder base must be turned off so that the compression is adjusted again due to the shorter stroke, we recommend setting a crushing edge of 0.8 - 1.0 mm.
  • For models with an external clutch lever, the intake must be extended, otherwise the carburettor may come into contact with the clutch lever.

Quality product from the Italian manufacturer Athena.

Details

ManufacturerAthena
MaterialAluminum
CamouflagedNo
Surfacesandblasted
Displacement50 ccm
Area of applicationTuning
Crankshaft stroke44 mm
Ø piston pin (B)12 mm
Nominal diameter38 mm
Ø cylinder neck51.7 mm
Ø outlet inside28.3 mm
Inlet window23.6 x 12.8 / 16.5
Thread inletM6x1 (standard thread)
Hole spacing outlet50 mm
Number of fixing points4 pcs
Hole pattern [mm]56/61 x 56
Outlet typestraight
Thread outletM8x1.25 (standard thread)
DecompressorM10x1.5
Hole spacing inlet32 mm

Suitable for the following models

Sachs

505 (mit Tretwelle) - 1A (AT), 2 A (HG)

508 - 1 A

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