The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => Amal, Carburation, Fuel => Topic started by: Drew Back on 12.09. 2014 21:46

Title: Amal 276 Set Up
Post by: Drew Back on 12.09. 2014 21:46

I finaly got my brand new 276 carb today and was wondering if I needed the choke stuff in there..I removed the spring and the skinny plunger but can I leave the slide in?Do I need to plug the threaded hole on the top?Will it affect anything?This carb is completely new to me so please forgive the dumb questions..

Title: Re: Amal 276 Set Up
Post by: Clive54bsa on 12.09. 2014 21:54

Hi Drew back, I have a 54 GF with an original 276GG on it, it's been rebuilt several times and works pretty good except when on the prop stand. However even here in Southern California it won't start 1st or 2nd kick without a bit of choke, so I suggest leaving it on. Also it's handy to use when you are trying to set up the perfect mixture for your bike.
Good luck with it.
Clive

Title: Re: Amal 276 Set Up
Post by: trevinoz on 12.09. 2014 23:18

Drew,
             If you leave the choke slide in without the fittings, the choke will be permanently "on".
I will leave it to your imagination as to how the engine will behave.

Trev.

Title: Re: Amal 276 Set Up
Post by: Drew Back on 13.09. 2014 12:14

Oops I did not think of it that way thank you for pointing out the obvious..Does it matter which side the float is on right now I have it on the left side and there does not seem to be any thing in the way,,I will try to get some pics later on Im like a proud papa these carbs are by no means cheap its so shiny and new..

Title: Re: Amal 276 Set Up
Post by: scotty on 13.09. 2014 14:28

the float bowl on the 276 on my '56 A10 is on the right (timing side)
not sure if that's correct but that's where mine is
HTH

S

Title: Re: Amal 276 Set Up
Post by: a10 gf on 13.09. 2014 14:42

Quote

If you leave the choke slide in without the fittings, the choke will be permanently "on".

For anyone who wonders (I did upon a time) this is how I understand it: the choke system does not by itself increase fuel but restricts normal airflow, resulting in more fuel suction for the jets, these 2 factors together resulting in richer mixture. Never had to use the choke on my a10, just a good tickling.

Title: Re: Amal 276 Set Up
Post by: trevinoz on 13.09. 2014 22:12

The original carbys had the bowl on the right but the main body and jet block were also made for this set up and were different to the left hand bowl types.
I don't think that the right hand 276 carby is made now.

Trev.

Title: Re: Amal 276 Set Up
Post by: scotty on 14.09. 2014 15:31

FWIW

I purchased mine from Amal / Burlington Fuels a couple of yrs ago.

At that time Burlington gave the option of L/H or R/H float bowl when I placed the order

S

Title: Re: Amal 276 Set Up
Post by: trevinoz on 14.09. 2014 21:47

The bowl should be 7 1/2 degrees offset and can only be used on the side which it is meant for.
Trev.

Title: Re: Amal 276 Set Up
Post by: Drew Back on 14.09. 2014 23:01

Well it seemed to fit real nice on the left

Title: Re: Amal 276 Set Up
Post by: trevinoz on 14.09. 2014 23:24

Looks good, Drew.
The bowl is level and the carby has a down draught as it should.

Title: Re: Amal 276 Set Up
Post by: a10 gf on 14.09. 2014 23:28

Drew Back, looks great, please report on how it works after a while of using it.

Title: Re: Amal 276 Set Up
Post by: Drew Back on 14.09. 2014 23:29

Now that I look at the pics I realize I dont have the mag in I hope there is clearance I sent it out for a rebuild..nuts

Title: Re: Amal 276 Set Up
Post by: trevinoz on 15.09. 2014 22:17

It'll be right, Drew.