Author Topic: 1958 triumph speedtwin  (Read 157 times)

Offline 567riley??:

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1958 triumph speedtwin
« on: October 26, 2017, 04:28:46 PM »
hi
have had above bike for ten years but unfortunately it is rarely ever used due to difficulty in starting.
followed instructions in manual but I can spend 30  mins  and bike still will not start.
on the few occasions bike  eventually starts it is smokey and loses oil via pipe underneath.
have changed plugs and oils but problems still exist..
any helpful advice appreciated.
thanks
stuart

Offline iansoady

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Re: 1958 triumph speedtwin
« Reply #1 on: October 26, 2017, 05:16:07 PM »
Sounds as if it could be wet sumping. Try draining the oil from the sump before you try to start it (square plate under the crankcase held on by 4 studs).
Ian
1952 Norton ES2
1962 Ariel Arrow
1982 Moto Guzzi V50

Offline mini-me

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Re: 1958 triumph speedtwin
« Reply #2 on: October 26, 2017, 05:28:53 PM »
and then put some clean plugs and fresh juice in it

is this a unit motor? with distributor?

Offline 567riley??:

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Re: 1958 triumph speedtwin
« Reply #3 on: October 26, 2017, 07:19:41 PM »
thanks
.will give it a go.
stuart

Offline iansoady

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Re: 1958 triumph speedtwin
« Reply #4 on: October 27, 2017, 10:21:23 AM »
58 would be pre-unit for the 500 I believe.
Ian
1952 Norton ES2
1962 Ariel Arrow
1982 Moto Guzzi V50

Offline Rex

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Re: 1958 triumph speedtwin
« Reply #5 on: October 27, 2017, 11:22:57 AM »
Should be, but knowing definitively would be a help.
Sometimes owners go by the seller's description, or even the V5C, and it ain't always right.
A pre-unit fitted with a mag would need different solutions to a unit with a dizzie, as we all know.
A pic would be good...?

Offline 567riley??:

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Re: 1958 triumph speedtwin
« Reply #6 on: November 02, 2017, 11:05:25 AM »
hi,
have put new plugs in and fresh petrol and bike started after a few kicks but unfortunately i stalled bike and the bike would not restart so i just left it and will try again another day..
sorry but i gave the wrong info in original post:the triumph is actually a 1959 model with distributer..
any help will again be much appreciated..
thanks