The first step to tuning your Bullet is to fine tune the fuel to air mixture that the engine receives. With carburettor models this is fairly easy but with the EFI models it is all controlled by a factory set -ECU- (engine control unit). Even with a standard engine we have found that the mixture ratio is not always perfect and can not be adjusted. In conjunction with Dynojet UK we have developed a -Power Commander 5 System-. This works by piggy backing the existing ECU which makes changes to the existing settings to deliver the optimum ratio of fuel and air at any given throttle position and engine revs. Whilst this can offer some improvements on a standard model, it is essential when tuning the engine with different silencers and air filters etc. Dyno figures show that we have gained approximately 20% increase in BHP at the rear wheel coupled with a smoother power curve by using a different air filter and silencer.

OXYGEN SENSOR BLANKING BOLT (Part Number: 91008A) If you have fitted the Dynojet Power Commander you will need to disconnect the oxygen sensor in the exhaust pipe. This stainless steel polished domed bolt can be used to blank off the hole that is left exposed when you remove the sensor.

Note: These products are only suitable for the EFI models.