MODEL 30 CARB TYPE..?

Information relating to the Matchless G11 or AJS Model 30 600cc twin
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MODEL 30 CARB TYPE..?

Postby PANASH » Sun Mar 20, 2016 8:29 pm

Hello
Can anyone tell me the correct amal carb for my model 30 engined AJS? Haven't checked bore size as only collected bike today so any help really appreciated. Looks to be an old worn out Amal monobloc 928 / R300 fitted at moment, which I think may be incorrect.
Engine is a 600cc (1958) year so believe 1 1/16th bore...just need confirmation before I buy...
Anyway wait to hear back from the experts.
Thanks sincerely

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Re: MODEL 30 CARB TYPE..?

Postby hwilkinson » Mon Mar 21, 2016 8:25 am

376/078

AJS 600cc 1957-58; 30 Twin Mod 30 30CS Matchless 600cc 1958; G11, G11CS,

Bore 1 1/16" Pilot 30 Cutaway 3.5 Main 280 Needle Jet 0.11 Position 3

I found this on an excel list which i think came from the Amal website.

Good luck. Harry

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Re: MODEL 30 CARB TYPE..?

Postby poptsova » Mon Mar 21, 2016 4:06 pm

Hello your carb could be a 376/58 with a 1 inch bore a 260 main jet 30 pilot 106 needle jet needle position 3 and a number 4 slide that is for the standard twin the other size is for the model 30cs which is 376/78 1 1/16 bore 280 main jet 30 pilot 106 needle jet needle position 3 slide 376/06035 hope this helps dave.

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Re: MODEL 30 CARB TYPE..?

Postby PANASH » Mon Mar 21, 2016 4:52 pm

Thanks all - I will know bore when I take carb off for sure, but have something to go on here so thanks for taking the time..
kind regards. Pete

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Re: MODEL 30 CARB TYPE..?

Postby Rob Harknett » Mon Mar 21, 2016 5:35 pm

hwilkinson wrote:376/078

AJS 600cc 1957-58; 30 Twin Mod 30 30CS Matchless 600cc 1958; G11, G11CS,

Bore 1 1/16" Pilot 30 Cutaway 3.5 Main 280 Needle Jet 0.11 Position 3

I found this on an excel list which i think came from the Amal website.

Good luck. Harry

I have made excel files in the past, with brief info only.

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