200cc stage4 30mm amal mk1

[ROB]

looking for a starting point on jetting an 30mm amal mk1.
200cc stage4, clubman


thanks
ROB

[ROB]

mainjet arround 200????

slide is 3 1/2
pilot 25
needle 107

good idea?

[sean brady scooters]

the needle JET would be 106/107.............
but the actual needle maybe 2D1

[J1MS]

The mk 1 was the original bolt on carb (not like the mk 2 with the later conventional rubber mount) Alot of these early mk 1 Amals were set up for four strokes, although some were converted for two stroke use. If its a Four stroke one, they are hard, if not near Impossible to set up properly on a two stroke, owing to the appature that the needlejet and needle enter the venturi through, the two stroke version has a brass nozzle that protrudes higher into the venturi than the four stroke, and different needle jets without side holes in them.... All the best

[ROB]

yepp, it´s the 2stroke version.

...and needle JET is 107

what about the main jet?
they jets are not so easy to get hold of here in germany. although i think the jets are the same as the ones from the mk2!?

i only have a 200, 210, 220 and a 230 main jet....do i have a chance with these

...or am i completly wrong?

[sean brady scooters]

the main jets are interchangeable with Amal MK 2s...............

[J1MS]

I have a range of main jets that I no longer use. If you have trouble getting them PM me and I will try and send you what you need So long as the postage isnt to much. All the best once again

[ROB]

ok, many thanks to all!
will give them a try and report my achievement

cheers
Rob

[ROB]

my mk1 have 2 adjusters in the top. one for the throttle slide the other for the air valve.

but i´ve seen many pics using only one cable. what they did to the air valve?
without the cable the air valve slide is at it´s lowest position and blocks the induction pipe.