Amal Mk2 Concentric 2 or 4 stroke?
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yep -its all coming back to me now Matron.........time for me Sanatogen methinks
Scootering since 1968.
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- Posts: 1741
- Joined: Wed Jan 07, 2009 8:42 am
- Main scooter: Lambretta TV175 S3- what else!
- Location: Bali-Hai bar, Locarno Ballroom Bristol, 1967!- mines a Brown Split!!
- Contact:
thats it! puts lead in your pencil.........................apparently
Scootering since 1968.
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Here you go bristolmod im currently running this one on my stype, and yes i have to tickle it from cold,


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Spray Tubes
From left to right, 4 Stroke , 2 Stroke , Norton , Triumph

As a general rule the most noticeable difference between a 2 Stroke and 4 Stroke carburetter is the spray tube, the brass tube visible as you look through the carburetter bore. 4 Stroke spray tubes are cut off straight, 2 Stroke spray tubes are cut off at an angle sloping towards the mounting flange. Some later 850cc Norton Commandos use a spray tube with a square cutaway step while Triumph Triples use an angled spray tube cutaway from the mid point of the spray tube rather than right across as in the 2 stroke version. 2 Stroke and 4 Stroke bodies are not interchangeable and will not run correctly if used on the wrong type of engine.
gerryjunior nice carb,what jetting do you use?
From left to right, 4 Stroke , 2 Stroke , Norton , Triumph

As a general rule the most noticeable difference between a 2 Stroke and 4 Stroke carburetter is the spray tube, the brass tube visible as you look through the carburetter bore. 4 Stroke spray tubes are cut off straight, 2 Stroke spray tubes are cut off at an angle sloping towards the mounting flange. Some later 850cc Norton Commandos use a spray tube with a square cutaway step while Triumph Triples use an angled spray tube cutaway from the mid point of the spray tube rather than right across as in the 2 stroke version. 2 Stroke and 4 Stroke bodies are not interchangeable and will not run correctly if used on the wrong type of engine.
gerryjunior nice carb,what jetting do you use?
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Hello Dimitrios, i cant remember the jetting, i set it up about 2 years ago, next time i clean it ill note the jetting and post them .
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Thanks,
much appreciated.
I believe I'll have mine, somewhere in the mid of December.
much appreciated.
I believe I'll have mine, somewhere in the mid of December.