I thought I read a post recently where someone said they had chrome slides for amal concentrics, but I can't find the post. I'd like to try one on a 928 if possible. Anyone know who had them?

Surrey Cycles
http://www.surreycycles.com/exclusive.htm

Thanks, but I think it was states side. I think shipping from uk would be cost prohibitive for such a common item.

britbike220 wrote:Thanks, but I think it was states side. I think shipping from uk would be cost prohibitive for such a common item.

But they're not a common item as far as I'm aware, at least not the chrome plated brass slides?
I don't think Burlen (Amal) has ever managed to successfully produce the chromed brass slides in any great quantity.
Beware of the chrome plated zinc slides which most 'chrome' Amal slides in fact are.
Unless there's a manufacturer of chromed slides in the US then the Surrey Cycles slides are ones to buy.

In that case I guess I'll order them from the UK, thanks L.A.B.

Off track a bit but a friend has a old Royal Enfield that has been completely gone through and only needs the carbs done, dual Amal's and he bought the rebuild kits years ago so I told him to buy new ones cuz it seems things have been improved like float needles etc. Ok the gaskets are ok but what should he replace? I assume a float needle for modern gas, one of the new floats, the O rings @ the air screw & throttle stop. Is that it? His kits are eight years old (that's when the bike was restored but not ridden) I would trash them all but he won't so all new rubber parts is the best I can get him to do!

This is a copy of an emil reply i received from amal-

A pair of 930/30 and 930/31 cost £85 each. Shipping to New Zealand costs £25.00.

We have just introduced some new options for the Mark 1 carburetter and for the time being we are giving customers who order carburetters the links to the new parts so you have the option of considering them for your carburetter. If you order and would like any of these options built into your carburetters, let me know and I will get your carburetters modified.

The options are:

Decorative Chrome brass slides: http://www.amalcarb.co.uk/ProductDetail.aspx?id=37425

Hard anodised slides: http://www.amalcarb.co.uk/ProductDetail.aspx?id=37409

“Stay-up” floats: http://www.amalcarb.co.uk/TechnicalDetail.aspx?id=14

As part of a new carburetter Ground hard chromed brass slides costs £19.50 extra, Hard anodised slides cost £17.50 extra, and the “Stay-Up” floats cost £7.50 extra. Decorative chromed brass slides cost £10 extra where the required cutaway is still available.

Kind regards,

Phil Beresford
Technical Sales Co-ordinator

Burlen Fuel Systems Limited - The SU and AMAL Carburetter Companies

I ordered one for my carb at the beginning of March. Still not arrived as there is a supply issue.

OK, I'm confused. If the slide is made of harder metal (chrome) than the body of the carburetor, hence the bore, won't they wear down the bore of the carburetor faster? I would rather replace the slide occasionally than have to resleeve the bore.

montelatici wrote:OK, I'm confused. If the slide is made of harder metal (chrome) than the body of the carburetor, hence the bore, won't they wear down the bore of the carburetor faster? I would rather replace the slide occasionally than have to resleeve the bore.

Chrome, if you hadn't noticed, is relatively smooth.

I think the fact that it isn't two like metals help the slide and bore to remain in tact longer. Like metals tend to gaul or fuse if left together. There is clearance so there isn't really wear as long as you have bronze, chrome, steel, etc along with the pot metal bore.

swooshdave wrote:

montelatici wrote:OK, I'm confused. If the slide is made of harder metal (chrome) than the body of the carburetor, hence the bore, won't they wear down the bore of the carburetor faster? I would rather replace the slide occasionally than have to resleeve the bore.

Chrome, if you hadn't noticed, is relatively smooth.

Of course, but being a 2-stroke racer, I know darn well that they don't make chrome pistons and steel bores for a reason. LOL

British Cycle Supply in Canada sells chromed brass Amal slides.
http://WWW.britcycle.com

Excellent info Joe, thanks! I'll call them today.

NP...

I contacted them in September... they were out at the time called me two months later to say they had restocked.

They are definitely chromed brass; you can see the brass on the underside.

Good service and always pleasant to talk to on the phone.

Cheers,

- HJ