Two-stroke inlet control via membrane

membranes are used exclusively in the two-stroke engine. With this membrane tongues , the suction path is sealed to the outside so that the previously aspirated mixture can be precompressed and flushed into the combustion chamber. Leaky and broken membranes are a common cause of poor or no longer starting engines, especially for 50cc scooters. Diaphragms are wearing parts and must be changed at regular intervals. Some (often Italian) manufacturers install as standard membrane leaves made of steel. While they last longer than their counterparts made of carbon or plastic but break and are sucked into the combustion chamber, often a major engine damage is the result. For safety reasons we therefore recommend the use of carbon membranes, especially for scooter racing or tuned scooter engines.For almost all scooter models of the major manufacturers such as Yamaha Aprilia , Peugeot , Vespa , Piaggio , Malaguti but also for China scooters like Explorer , Baotian , Rex , Sym , Keeway , Kymco ,  Pegasus , PGO we have both replacement membranes in Standard version or tuning membranes made of carbon.

Manifolds / parts » Exhaust gaskets
Exhaust gasket S410510012003
3.38 £ 3.04 GBP
excl. Shipping costs
1000
  2120+ sold
Athena S410510012003 38X45X5.3MM

Product No.: BTS-735.73.38

EAN: 7899641822071

Manufacturer: Athena

Manufacturer Nr: S410510012003

Shipping time: 5-7 business days

Exhaust gasket S410210012002
4.53 £ 4.08 GBP
excl. Shipping costs
1000
  1430+ sold
Athena S410210012002 31.5X40X4MM

Product No.: BTS-735.72.96

EAN: S410210012002

Manufacturer: Athena

Manufacturer Nr: S410210012002

Shipping time: 5-7 business days

Exhaust gasket S410210012008
2.65 £ 2.39 GBP
excl. Shipping costs
1000
  1410+ sold
Athena S410210012008 35X43X4MM

Product No.: BTS-735.73.12

EAN: 7899641839093

Manufacturer: Athena

Manufacturer Nr: S410210012008

Shipping time: 5-7 business days

Exhaust gasket S410250012007
3.89 £ 3.50 GBP
excl. Shipping costs
1000
  1210+ sold
Athena S410250012007 32X42X3MM

Product No.: BTS-735.74.37

EAN: S410250012007

Manufacturer: Athena

Manufacturer Nr: S410250012007

Shipping time: 5-7 business days

Exhaust gasket S410510012003
1000
  2120+ sold
Exhaust gasket S410510012003
3.38 £ 3.04 GBP
excl. Shipping costs
Exhaust gasket S410210012002
1000
  1430+ sold
Exhaust gasket S410210012002
4.53 £ 4.08 GBP
excl. Shipping costs
Exhaust gasket S410210012008
1000
  1410+ sold
Exhaust gasket S410210012008
2.65 £ 2.39 GBP
excl. Shipping costs
Exhaust gasket S410250012007
1000
  1210+ sold
Exhaust gasket S410250012007
3.89 £ 3.50 GBP
excl. Shipping costs
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Manifolds / parts » Exhaust manifold
Exhaust manifold for: keeway open
24.23 £ 21.81 GBP
excl. Shipping costs
1000
  110+ sold
Naraku NK400.19 NARAKU

Product No.: BTS-783.19.36

EAN: 4250362419132

Manufacturer: Naraku

Manufacturer Nr: NK400.19

Shipping time: 5-7 business days

Exhaust manifold
36.64 £ 32.98 GBP
excl. Shipping costs
1000
  80+ sold
101 Octane 26805

Product No.: BTS-783.00.03

EAN: 4250362497765

Manufacturer: 101 Octane

Manufacturer Nr: 26805

Shipping time: 5-7 business days

Header pipe clamp
15.61 £ 14.05 GBP
excl. Shipping costs
1000
JMP 6235

Product No.: BTS-782.01.87

EAN: 6235/01

Manufacturer: JMP

Manufacturer Nr: 6235

Shipping time: 5-7 business days

exhaust manifold 100540010
4.56 GBP
excl. Shipping costs
0
5+ sold
RMS 100540010

Product No.: BTS-734.25.99

EAN: 1005400100001

Manufacturer: RMS

Manufacturer Nr: 100540010

Shipping time: on request

Exhaust manifold for: keeway open
1000
  110+ sold
Exhaust manifold for: keeway open
24.23 £ 21.81 GBP
excl. Shipping costs
Exhaust manifold
1000
  80+ sold
Exhaust manifold
36.64 £ 32.98 GBP
excl. Shipping costs
Header pipe clamp
1000
Header pipe clamp
15.61 £ 14.05 GBP
excl. Shipping costs
exhaust manifold 100540010
0
5+ sold
exhaust manifold 100540010
4.56 GBP
excl. Shipping costs
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Manifolds / parts » Thrust Ring
exhaust gasket - flat - strengthened version - inner 32 mm innen
3.14 £ 2.83 GBP
excl. Shipping costs
1000
  440+ sold
exhaust gasket - flat - strengthened version - inner 32 mm innen
Anr.: BTS-14601114

Product No.: 14601114

EAN: 4250362415851

Manufacturer: Geiwiz

Manufacturer Nr: 14601114

Shipping time: 5-7 business days

44,0 x 37,5 x 3,5 (Außen/Innen/Höhe) manifold gasket Alu/copper (OEM 4FM-14613-00)
3.19 £ 2.87 GBP
excl. Shipping costs
1000
  230+ sold
44,0 x 37,5 x 3,5 (Außen/Innen/Höhe) manifold gasket Alu/copper (OEM 4FM-14613-00)
Anr.: BTS-88972029

Product No.: 88972029

EAN: 4052752034327

Manufacturer: Geiwiz

Manufacturer Nr: 88972029

Shipping time: 5-7 business days

exhaust connection gasket 49x55x30
6.95 £ 6.26 GBP
excl. Shipping costs
1000
  200+ sold
exhaust connection gasket 49x55x30
Anr.: BTS-2400000

Product No.: 2400000

EAN: 4052752129658

Manufacturer: Geiwiz

Manufacturer Nr: 2400000

Shipping time: 5-7 business days

exhaust connection gasket45x50x35
7.89 £ 7.10 GBP
excl. Shipping costs
1000
  200+ sold
exhaust connection gasket45x50x35
Anr.: BTS-2400043

Product No.: 2400043

EAN: 4052752130081

Manufacturer: Geiwiz

Manufacturer Nr: 2400043

Shipping time: 5-7 business days

exhaust gasket - flat - strengthened version - inner 32 mm innen
1000
  440+ sold
exhaust gasket - flat - strengthened version - inner 32 mm innen
3.14 £ 2.83 GBP
excl. Shipping costs
44,0 x 37,5 x 3,5 (Außen/Innen/Höhe) manifold gasket Alu/copper (OEM 4FM-14613-00)
1000
  230+ sold
44,0 x 37,5 x 3,5 (Außen/Innen/Höhe) manifold gasket Alu/copper (OEM 4FM-14613-00)
3.19 £ 2.87 GBP
excl. Shipping costs
exhaust connection gasket 49x55x30
1000
  200+ sold
exhaust connection gasket 49x55x30
6.95 £ 6.26 GBP
excl. Shipping costs
exhaust connection gasket45x50x35
1000
  200+ sold
exhaust connection gasket45x50x35
7.89 £ 7.10 GBP
excl. Shipping costs
more thrust ring