Electrics, Ignition and Charging

Firefox 50 - Euro 3 - Euro 4 - Euro 5

It is important to order the correct parts for your A.J.S scooter or motorcycle.
There are important differences between Euro 3 and Euro 4/5 parts.
1) Euro 3 models have carburetters and Capacitor Discharge Ignition (CDI)
2) Euro 4/5 models have Electronic Fuel Injection (EFI) or Electronic Carburetters and an Engine Control Unit (ECU) to control ignition and fuel management.

Tip: Only Euro 4/5 models have Malfunction Indicator Lights (MIL) on the speedometer. The MIL will blink a code if there is a fault.

Note:
From July 2018 the Firefox 50 changed from 2 Stroke to 4 Stroke to meet Euro 4 emissions.

2011 to 2017 Euro 3 (two stroke)
VINs begin with: L4HFTBBP*B6001176 and end at L4HFTBBP*H6001417
(* is a random character)

2018 to 2020 Euro 4 (4 stroke models)
VINs begin with L4H4FA10*J6000346 and end L4H4FA10*L6000159
(* is a random character)

2021
Euro 5 VINs start at L4H4FA10*M6000159 - ongoing
(* is a random character)