Feature

●BVF 21N1-11 racing carburettor for more peak performance thanks to larger cross section of diameter 21 mm passage (22 mm gas slider) in completely new housing/new mould
●Significantly better/cleaner mixture preparation (throttle response/partial load behaviour) thanks to completely new partial load needle shape in conjunction with adapted atomiser and nozzle stock, guided gas slide spring, gas slide lid with O-ring / seal
●Clamping partial load needle improved (no longer rattles) + easier installation
●Complete original look with lettering N1-11 or N1-12


Description

BVF - Racing carburettor 21N1-11 - M5 main nozzle 110 Simson S51, S53, S70, S83.
Details:
More peak performance thanks to larger cross section of diameter 21 mm passage (22 mm gas slider) in completely new housing / new mould.
Significantly better/cleaner mixture preparation (throttle response/partial load behaviour) thanks to completely new partial load needle shape in connection with adapted atomiser and nozzle stock.
Guided throttle spring
Throttle lid with O-ring/seal.
Clamping partial load needle improved (no longer rattles) + easier installation.
Complete original look with lettering N1-11 or N1-12.
Float chamber with separate drain / with central screw.
Standard main nozzle = 110.
Standard idle nozzle = 35.
Standard starter nozzle = 50.
Standard partial load needle = 12 (normal).
Standard needle nozzle/nozzle stick = 265.
Standard float needle valve = 20.
Connection for petrol hose straight, ideal for S51, S70 etc.
The float level must be adjusted correctly to ensure functional safety in all load conditions!
Model assignment:
Simson S51, S53, S70, S83.
Package includes:
1 x BVF 21N1-11 carburettor