Reply To: Tick over speed! Great British Handcrafted Motorcycles › Forums › Spitfire – Bobber › Tick over speed! › Reply To: Tick over speed! 30 March, 2021 at 5:28 am #8493 MikeMember Hey jckman8, mine was exactly the same. Kept cutting out gearing down etc. It is the tick over speed that needs adjusting to around 1700. Since adjusting mine it hasn’t cut out since. Happy days!!