Amal Mk2 Concentric 2 or 4 stroke?

[DaveTomo]

Can anyone confirm whether this is a 2 or 4 stroke Amal.On the back is 2930-1.Mate reckons it maybe a 4 stroke got it at a parts fair for £20 with the manifold and its got 2D1 needle.

[Muppet]

2

[gerryjunior]

I may be wrong but, i think thats from a 4 stroke ( norton i think), the 2 stroke amal carb's had a slope in the brass spray tube not a cut out,

[rosscla]

2d1 is a two stroke needle, that spray type is the same as three carbs I have lying about in the front room, although in one of those the tube is flush with the Venturi, whereas the other two it sticks up like that.

[Muppet]

its a 2 stoke amal the 4 stroke asnt got a cutaway in the tube

[gerryjunior]

Like i said i could be wrong, im more used to the amal mk 1 ..

[DaveTomo]

its a 2 stoke amal the 4 stroke asnt got a cutaway in the tube

Thank you all,much appreciated,chuffed its a 2 stroke as I've just bought another one "blind" and its exactly the same.Someone had one on a Lammy awhile back at the wickstead parts fair,heard it start up and it took me back ,the induction sound is different I think to that of a dellorto,sort of like a dellorto with a 40 a day smoking habbit.Just fancied putting one on over the winter months and see how it goes - rapido 225.Again thank you.

[Lamaddict]

Best carbs I've had but very thirsty.

[bristolmod]

I'm going back a long time now to 1968, and the only Amal Concentric carb I saw on a Lambretta needed "tickling" (small button on top?) before you could start it.

Anyone know if I'm right or simply getting senile......

Chris

[warts]

I think you're right Chris.
For those too young, you pressed a small button on top of the float bowl, this pushed down the float, and the carb flooded - you soon learned how much to give it, or carry lots of spare plugs.