Racing cylinder of the Airsal 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 provides a significant increase in performance.
The intake manifold is included in the scope of delivery.
Plugs with a long thread must be used.
Technical data cylinder:
- Ø inside intake manifold: 14 mm
- Connection diameter intake manifold: 20 mm
- Ø inside exhaust flange: 20 mm
- Ø connection exhaust flange: 26 mm
- Ø cylinder neck: 50.0 mm
- Stroke: 44 mm
- Bore: 43.5 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 6.
- 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 touch the clutch lever.
Further parts such as the required spark plug with long thread can be found in the accessories.
Quality product from the Spanish manufacturer Airsal.
Details
| Manufacturer | Airsal |
| Camouflaged | No |
| Material | Aluminum |
| Surface | sandblasted |
| Crankshaft stroke | 44 mm |
| Nominal diameter | 43.5 mm |
| Ø cylinder neck | 50 mm |
| Ø Outlet outside | 26 mm |
| Ø Inlet inside | 14 mm |
| Inlet window | 23.8 x 14.8 |
| Ø piston pin (B) | 12 mm |
| Thread inlet | M6x1 (standard thread) |
| Number of fixing points | 4 pcs |
| Area of application | Tuning |
| Outlet type | clamped |
| Hole pattern [mm] | 56 (61) x 56 |
| Decompressor | M10x1.5 |
| Hole spacing inlet | 31 mm |
Suitable for the following models
| Sachs | 504 (ohne Tretwelle) 505 (mit Tretwelle) - 1A (AT), 2 A (HG) 508 - 1 A |
Accessories & related products
NGK B8ES spark plug long thread
Manufacturer: NGK · Candle designation: B8ES · Candle thread type: long · Spark plug socket: M4 · Thread type: MF14x1.25 (fine pitch thread) · Spark plug socket: SAE · Width across flats SW: 21 mm · Suppressed: No · Area of application: Performance · Area of application: Racing · Area of application: Tuning
7,25 EUR
Athena 45 mm cylinder kit incl. mounting parts | Sachs (504), 505, 508
Manufacturer: Athena · Material: Aluminum · Camouflaged: No · Surface: sandblasted · Crankshaft stroke: 44 mm · Nominal diameter: 45 mm · Ø piston pin (B): 12 mm · Ø cylinder neck: 51.7 mm · Ø Outlet outside: 25.9 mm · Ø Inlet inside: 14.3 mm · Inlet window: 23.4 x 12.6 · Thread inlet: M6x1 (standard thread) · Ø outlet inside: 19.5 mm · Number of fixing points: 4 pcs · Hole spacing outlet: 50 mm · Decompressor: M10x1.5 · Outlet type: clamped · Outlet type: straight · Hole spacing inlet: 31.5 mm · Thread outlet: M8x1.25 (standard thread) · Hole pattern [mm]: 56 (61) x 56 · Area of application: Tuning
335,20 EUR
Athena 48 mm cylinder kit without mounting parts | Sachs (504), 505, 508
Manufacturer: Athena · Material: Aluminum · Camouflaged: No · Surface: sandblasted · Crankshaft stroke: 44 mm · Nominal diameter: 48 mm · Ø piston pin (B): 12 mm · Ø cylinder neck: 51.6 mm · Number of fixing points: 4 pcs · Decompressor: M10x1.5 · Outlet type: clamped · Area of application: Tuning
312,90 EUR
Airsal 14 mm intake manifold angled | Sachs 504, 505
Manufacturer: Airsal · Material: Aluminum · Ø inside: 13.6 mm · Height flange center hole: 56 mm · Ø External connection: 20 mm · Number of fixing points: 2 pcs · Mounting type: Screws · Hole spacing inlet: 31 mm · Area of application: Tuning
41,30 EUR
MLM 15 mm intake manifold Dell'Orto SHA | Sachs 504, 505
Manufacturer: MLM · Material: Steel · Color: black · Surface: varnished · Ø inside: 15 mm · Ø External connection: 19 mm · Mounting type: Screws · Hole spacing inlet: 30 - 32 mm · Number of fixing points: 2 pcs · Height flange center hole: 45 mm · Area of application: Tuning
89,30 EUR
Airsal piston 43.5 mm | Sachs 504 / 505
Manufacturer: Airsal · Nominal diameter: 43.5 mm · Ø outside piston (A): 43.5 mm · Ø piston pin (B): 12 mm · Compression height (C): 25.8 mm · Curvature (D): 4.25 mm · Total piston height (E): 52.2 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1 mm
55,80 EUR
NGK BR8EIX spark plug long thread interference-suppressed Iridium
Manufacturer: NGK · Candle designation: BR8EIX · Candle thread type: long · Thread type: MF14x1.25 (fine pitch thread) · Width across flats SW: 21 mm · Spark plug socket: M4 · Spark plug socket: SAE · Electrode material: Iridium · Suppressed: Yes · Area of application: High End · Area of application: MX · Area of application: Racing · Area of application: Tuning
30,10 EUR
Moped fans like you also bought:
Mushroom air filter foam black, Bing SRE (Ø=20 mm)
Area of application: Tuning · Ø outside: 61 mm · Material: Foam · Filter type: Foam · Material: Metal · Material: Rubber · Total length: 105 mm · Color: Chrome · Color: black · Camouflaged: No · Length rubber part: 65 mm · Length of filter section: 40 mm · Ø Internal connection: 20 mm · Mounting type: Bride · Mounting type: Plug connection clamped
11,10 EUR
Motorex engine oil (gear oil) manual 450 ml
Temperature resistance (min.): -30 - 220 °C · Manufacturer: Motorex · Oil type: GL4 · Viscosity (SAE): 80W · Gearbox type: Foot control · Gearbox type: Manual gearshift · Contents [ml]: 450 ml · Area of application: Gearbox lubrication with clutch
11,10 EUR
24,67 EUR/l
NGK B8ES spark plug long thread
Manufacturer: NGK · Candle designation: B8ES · Candle thread type: long · Spark plug socket: M4 · Thread type: MF14x1.25 (fine pitch thread) · Spark plug socket: SAE · Width across flats SW: 21 mm · Suppressed: No · Area of application: Performance · Area of application: Racing · Area of application: Tuning
7,25 EUR
Bing 85/12/101 carburetor (replica) | Sachs 504, 535
Material: Aluminum · Nominal diameter: 12 mm · Total length: 48 mm · Carburetor type: 85 · Choke control: without choke · Width: 50 mm · Height: 100 mm · Mounting type: Plug connection clamped · Nozzle size: 52 · Ø Inside entrance: 12 mm · Ø Internal connection: 20 mm · Ø Output inside: 12 mm · Nozzle thread: M4x0.7 (standard thread) · Area of application: Standard · Air filter connection thread: M5x0.8 (standard thread) · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Vacuum connection: No · Camouflaged: No
94,90 EUR
Bing 85/13/101 carburetor (replica) | Sachs 504, 535
Camouflaged: No · Material: Aluminum · Carburetor type: 85 · Nominal diameter: 13 mm · Ø Internal connection: 20 mm · Ø Inside entrance: 13 mm · Ø Output inside: 13 mm · Air filter connection thread: M5x0.8 (standard thread) · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: without choke · Nozzle thread: M4x0.7 (standard thread) · Nozzle size: 52 · Total length: 48 mm · Width: 50 mm
94,90 EUR
Collection only possible with online purchase and appointment.
