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Speedo cable

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Speedo cable

Post  Colin73 on Mon Mar 11, 2019 7:25 pm

Hello can anyone out there tell me what length the Speedo cable should be on my falcon 74 as the one I have been using is much to long thanks for reading colin

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Re: Speedo cable

Post  John Wakefield on Mon Mar 11, 2019 7:40 pm

This company list cables (and the lengths) for FB http://vintagebritishcables.com/Francis-Barnett-Speedometer-Cable--Smiths.php
Unfortunatly they are in the USA, but you could use the info from their web site to source one in UK. Speedy Cables would be one source https://speedycables.com/speedometer-cables/

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Re: Speedo cable

Post  Colin73 on Mon Mar 11, 2019 8:43 pm

Thanks John

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speedo cable

Post  piston 197 on Mon Mar 11, 2019 9:00 pm

Falcon 74 speedometer cable should be 4Ft 8" long, taken from Smiths catalogue, the speedo cable should be routed vertically upwards to the r/hand rear shock absorber and run over the toolbox assembly and under the tank, not along under the engine and up the front frame tube.

While there is information on the USA website linked above , none of their FB cables are the correct 4Ft 8" length although there is one in their list of 4Ft 7" which while close is not correct
JH
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Re: Speedo cable

Post  FBKev on Tue Mar 12, 2019 12:52 pm

Apologies for pushing into this thread. john do you have the correct length and routing for the Falcon 81 speedo cable?
Kev.
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Post  piston 197 on Tue Mar 12, 2019 12:55 pm

Same routing and length as the Falcon 74, same bike apart from the engine
JH
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Re: Speedo cable

Post  FBKev on Tue Mar 12, 2019 5:31 pm

Thank you John, I have two NOS Romac 4'8" inners for the James & the Falcon, the non working speedo on the Falcon is due to the fact that there is no inner cable, the James works but is very slow to react (suspect a short inner not engaging properly)  but both bikes have the cable routed underneath the frame which leaves a large bow either at the swing arm or head stock, hence the routing question. I assume that the cable requires not to tight bends at the speedo ? & which end of the inner is the crimped on collar placed?
Kev.
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Post  kerabo on Tue Mar 12, 2019 9:07 pm

FBKev wrote:Thank you John, I have two NOS Romac 4'8" inners for the James & the Falcon, the non working speedo on the Falcon is due to the fact that there is no inner cable, the James works but is very slow to react (suspect a short inner not engaging properly)  but both bikes have the cable routed underneath the frame which leaves a large bow either at the swing arm or head stock, hence the routing question. I assume that the cable requires not to tight bends at the speedo ? & which end of the inner is the crimped on collar placed?
Kev.

If you mean the small circular bit on the inner cable.
It's normally at the head end. It stops it falling away from the head.

Ken
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Re: Speedo cable

Post  intrudin on Wed Mar 13, 2019 12:17 am

John Wakefield wrote:This company list cables (and the lengths) for FB  http://vintagebritishcables.com/Francis-Barnett-Speedometer-Cable--Smiths.php
Unfortunatly they are in the USA, but you could use the info from their web site to source one in UK. Speedy Cables would be one source https://speedycables.com/speedometer-cables/


Excuse me, located in CANADA...Vintage British Cables
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Medicine Hat, Alberta
Canada, T1B1J7


This is not Trump country.. Laughing affraid
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Re: Speedo cable

Post  FBKev on Wed Mar 13, 2019 8:18 am

kerabo wrote:
FBKev wrote:Thank you John, I have two NOS Romac 4'8" inners for the James & the Falcon, the non working speedo on the Falcon is due to the fact that there is no inner cable, the James works but is very slow to react (suspect a short inner not engaging properly)  but both bikes have the cable routed underneath the frame which leaves a large bow either at the swing arm or head stock, hence the routing question. I assume that the cable requires not to tight bends at the speedo ? & which end of the inner is the crimped on collar placed?
Kev.

If you mean the small circular bit on the inner cable.
It's normally at the head end. It stops it falling away from the head.

Ken
Thanks Ken so the James may ok but the wrong way round? when wind in this part of drops enough for me to open the garage without the roof lifting off I will have a look.
Kev.
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Re: Speedo cable

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