Air Filter Hole and Sito Plus

Aim

This dyno result was from Richard Scouse's late model PX. The idea behind this test was to show the power difference you get by first doing a simple cheap change (the Air Filter Hole

Method

• 1. The scooter was taken back to standard and run on the dyno.

  2. Next the Air Filter Hole modification was done, with the main jet changed to 118

  3. Finally a Sito Plus Exhaust was bolted on, with the main jet changed to 122

Results

No air/fuel ratio results were available for this dyno, so carb settings have been based on guess work rather than any tests.

The most interesting conclusion was that the first change provided the biggest benefit.

Red Line

Blue Line Air Filter Hole

Green Line Air Filter Hole Sito Plus Exhaust