Engine - Ignition
Small Horsepower Timing
Click on the photo to see the full drawing.
20HP Chassis 1 to 675
20HP Chassis 676 to GHJ 30 (J Series)
20 HP GHJ31 to 20/25 GKT22 (R Series)
20/25 GKT23 to GSY 101 (Y Series)
20/25 (Z Series Onwards)
25/30 (L2 Series Onwards)
25/30 HP Wraith (All Chassis)
Markings and Firing Order
Valve Timing Procedure
Ignition Timing Procedure