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Motorcycle Discussions => British Bikes => Topic started by: Grunt on July 08, 2018, 07:40:26 PM

Title: Smiths speedo as fitted to 73 Bonnie.
Post by: Grunt on July 08, 2018, 07:40:26 PM

Has anyone stripped a smiths speedometer where the trip knob and shaft come horizontally out of the body. I can’t get the internals out of the body because of the shaft. I notice that TMS sell the shaft separately so I’m guessing the shaft should pull out of the body, mine however is refusing to budge with lightish pulling. I don’t want to put too much strain on it in case this isn’t the correct way to remove it.

Title: Re: Smiths speedo as fitted to 73 Bonnie.
Post by: L.A.B. on July 08, 2018, 08:11:35 PM

The trip knob should pull out, however, they're often stuck due to corrosion.

Title: Re: Smiths speedo as fitted to 73 Bonnie.
Post by: Grunt on July 08, 2018, 09:29:50 PM

Thanks L.A.B I’ll pluck up a bit more courage and try some silicone lubricant.

Title: Re: Smiths speedo as fitted to 73 Bonnie.
Post by: L.A.B. on July 08, 2018, 10:35:48 PM

The trip knobs don't always fit back as tight afterwards, which seems to be why they are often missing.

Title: Re: Smiths speedo as fitted to 73 Bonnie.
Post by: Grunt on July 09, 2018, 10:35:06 PM

All sorted thanks L.A.B. I don’t think I’ve eliminated the needle wobble at low speeds but at least it should read somewhere near the correct speed. And the needle returns to zero without giving it a belt.