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A7 & A10 Engine
A7 1946-1950
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The BSA A7-A10 Forum
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A7 & A10 Engine
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Twin Carbs
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Topic: Twin Carbs (Read 645 times)
bikerboy
Valued Contributor
Join Date: Dec 2011
Posts: 440
Karma: 4
Twin Carbs
«
on:
18.12. 2012 04:29 »
Has anybody got any experience of running twin carbs on an A10 ?
Unable to resist I have obtained a twin carb 70mm alloy cylinder head. I aim to stick a couple of 930 concentrics on it and wonder if anybody has any advice on the jetting ?
Super Rocket barrels and pistons with a 357 Spitfire cam.
Any advice would be greatly welcomed
Thanks in advance
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muskrat
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Join Date: Jul 2009
Posts: 10777
Karma: 130
Lithgow NSW Oz
Re: Twin Carbs
«
Reply #1 on:
18.12. 2012 08:56 »
G'day bikerboy.
Just from memory 30 pilot, #3 slide, 106 needle jet, 210 main. Mine had no filters just velocity tubes and straight through pipes with reverse cone megas. Will check records later. I use two 30mm Kehin flat slides now.
Cheers
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'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7
muskrat
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Join Date: Jul 2009
Posts: 10777
Karma: 130
Lithgow NSW Oz
Re: Twin Carbs
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Reply #2 on:
18.12. 2012 09:40 »
Just checked, I get 50/100 for memory. The jets were right but the carbs were 932's. Should be a good starting point for yours though.
Cheers
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'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7
bikerboy
Valued Contributor
Join Date: Dec 2011
Posts: 440
Karma: 4
Re: Twin Carbs
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Reply #3 on:
19.12. 2012 04:46 »
Thanks for the help I will start with 210 main jets :)
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The BSA A7-A10 Forum
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Technical (Descriptive Topic Titles - Stay on Topic)
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A7 & A10 Engine
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Twin Carbs