Scooter Shack is now a read-only archive. Over 20 years of scooter knowledge (2006–2026) is preserved here. New posts, replies and accounts are closed.

2018 AJS Firefox 50cc 2stroke No Spark

Discussion in The Workshop started by craig laird, 18 Aug 2025

craig laird18 Aug 2025#1

Hi guys

I have a 2018 AJS Firefox 2stroke that doesn’t have a spark. I got it as a non runner so I’ve never heard it running.

I’ve replaced the cdi, coil, Stator and spark plug and crossed the wires for the side stand switch. Still no spark.

UPDATE : I now have a spark. Isn’t the strongest but it’s sparking. Still no start though. Should I now do a compression test ?

Can anyone offer any help ?
Cheers

More threads in The Workshop

Honda Vision 110 eSP Hard starting, huge white petrol-smelling smoke, no power	1 replies	23 May 2026
New carb, new filter, new fuel, still no start	0 replies	12 Mar 2026
very hard to start cold	0 replies	2 Mar 2026
Gilera runner 125 fx	0 replies	8 Oct 2025
2003 typhoon issue	0 replies	29 Aug 2025
Getting one click from Start relay and nothing else	37 replies	16 Aug 2025
Coolant leak	0 replies	27 Jul 2025
Piaggio stock screw thread	0 replies	17 Jul 2025
Sym vs125 scooter cutting out when stopping?	2 replies	4 Jul 2025
Sym Symphony SR125	2 replies	4 Jul 2025