Anyone change from amal 930's to amal 932's?

o0norton0o · Saturday at 8:48 AM

My friend gave me his old 932's since he bought a pair of new premiers. I have a '70 commando which came with 930's, and I'm wondering if I would see a noticeable kick in the pants to swap to the larger carb. Anyone make that exact change and have an opinion? Thanks in advance...

MikeG · Saturday at 9:02 AM

o0norton0o said:
My friend gave me his old 932's since he bought a pair of new premiers. I have a '70 commando which came with 930's, and I'm wondering if I would see a noticeable kick in the pants to swap to the larger carb. Anyone make that exact change and have an opinion? Thanks in advance...

I put 932 Premiers on my 71 in place of the 930s. No noticeable difference I can see.

baz · Saturday at 9:33 AM

o0norton0o said:
My friend gave me his old 932's since he bought a pair of new premiers. I have a '70 commando which came with 930's, and I'm wondering if I would see a noticeable kick in the pants to swap to the larger carb. Anyone make that exact change and have an opinion? Thanks in advance...

I very much doubt you'll notice any difference tbh

Shelby-Right · Saturday at 12:23 PM

I have a 73 750 mk5 , RH6 head ,it has 932s , it runs really nice , the pipes are a nice yellow colour ? Cold it starts in 1-3 kicks cold , I hold it at 2k for a little bit , it will actually idle at 500 , but when warmed a bit, it idles at 1000 ,hot starts 1st kick , it's great when pulling up it doesn't stall, good response and pulls well , it has electronic ignition, and when I got it the pipes were black and they were very very hot , the timing was at 28deg , and the ignition type recommended 31deg , I reset and all was good .

L.A.B. · Saturday at 12:37 PM

Shelby-Right said:
I have a 73 750 mk5 , RH6 head ,it has 932s , it runs really nice ,

Yes, but the RH6 head should have 32mm carbs.

acotrel · Saturday at 1:33 PM

If there is a step in the inlet tract, in my opinion you might get less power. However there was something about a Gold Star BSA which gained power when there was a step. The biggest effect is probably the effect bigger port diameter has on the needle jet and the shape of the needle due to loss of vacuum. A bigger carb probably has less vacuum, so the taper needs to be quicker to get enough fuel to make the mixture right. But if the mixture is leaner you can get more power.

Ron L · Saturday at 5:12 PM

L.A.B. said:
Yes, but the RH6 head should have 32mm carbs.

As it has 32mm intake ports.

o0norton0o · Saturday at 5:26 PM

Thanks, My 930's are sleeved and work fine. I've even had someone who rode it ask if it was a combat engine because they thought it felt pretty strong. I'll probably keep it as it is. thanks for the comments...

ashman · Saturday at 5:35 PM

If it's running good and strong already then leave it as it is, but always good having spares that are good as well and use them when needed or for another project, you never know what maybe down the road, I keep all my old bits even if they are worn out or broken, you just never know as they might come in handy one day.

Ashley

Peter Mottner · Monday at 10:40 AM

o0norton0o said:
My friend gave me his old 932's since he bought a pair of new premiers. I have a '70 commando which came with 930's, and I'm wondering if I would see a noticeable kick in the pants to swap to the larger carb. Anyone make that exact change and have an opinion? Thanks in advance...

good morning

I have done this, if I had to do it over again, I wouldnt

to obtain maximum performance "charge velocity" is all important
if you have not increased displacement then larger carburetors may actually reduce velocity

the best ET for a Commando that I have seen was for a 750 Standard with 930's

for more juice, look at your cam, ports and spec your carbs

Peter

o0norton0o · Monday at 11:19 AM

Thanks Peter, I'm always curious to hear from people who have done something I have the opportunity to do. I am good to stick with what I have. I know the real improvements are a package deal... (displacement, cam, ports, etc) I have no intention of going there, but was still curious enough to ask if anyone had gone from 930 to 932...

Mike40M · Monday at 11:47 AM

My 650SS long time project came with 932s. But don't know if it's an improvement. Only had it running 2 minutes when I bought it.

Anyone change from amal 930's to amal 932's?

o0norton0o

MikeG

baz

Shelby-Right

L.A.B.

Moderator

acotrel

Ron L

o0norton0o

ashman

Peter Mottner

o0norton0o

Mike40M

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