lanyards at the TT

[little chud]

I'm working on a design of a kill switch and was just wondering, is it in the regs anywhere, or a written instruction for the scrutes to check they work at the TT? or anywhere else for that matter.

Or is it, just some scrutes that take it upon themselves to check.

I'm not saying its wrong that they check by the way

jc

[Big Tim]

Lanyards are usually all tested at least once at the TT (in pitlane after a scrutineering session, and prior to going on circuit), they were also checked at the Southern 100 last year too, before first practice. I know when we have raced on the continent, lanyards are nearly always tested. They are tested firstly to make sure the motor cuts out when running, and also with the engine "dead" to ensure the fuel pump is cut when the lanyard is pulled.

From this years TT regs:

21 Cut out Device
• An ignition cut-out must be fitted to operate when the driver leaves the machine. This cut-out system must interrupt the primary circuit and
must be wired for both the supply and return current. The cut-out must be placed as near to the centre of the handlebar as possible and must be
operated by a non-elastic string of adequate length and thickness and strapped to the driver’s body. A spiral cable (similar to that of a telephone
wire) of maximum 1m extended length is permitted.
• Any electric fuel feed pump must be wired in such a way as to cut out if the engine cut-out device is operated

[Jo Warriner]

Thank you Tim

Anything in the regs can be tested. And yes, it is routinely done at least once per TT.

[little chud]

Thank you both. Much appreciated.

jc