BritBike Forum logo
BritBike Sponsor BritBike Sponsor BritBike Sponsor
BritBike Sponsor

BritBike Sponsor

BritBike Sponsor
BritBike Sponsor BritBike Sponsor BritBike Sponsor
JRC Engineering dealers
Home | Sponsors, Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons, "OLD" BritBike Forum | DVD- Manuals & Parts books | BritBike Stickers & Decals
Upgrade to: Premium Membership | Premium Life Membership | Vendor Membership | Site Sponsor Membership
Member Spotlight
Kevin (NZ).
Kevin (NZ).
Christchurch, NZ
Posts: 1,799
Joined: August 2001
Show All Member Profiles 
Shout Box
Search eBay for motorcycle parts in following countries
Australia, Canada, France, Holland, Italy, United Kingdom, USA
Random Gallery photo
Who's Online Now
29 registered members (998John), 196 guests, and 443 spiders.
Key: Admin, Global Mod, Mod
Newest Members
Mickeyrat, Gtommy, Stew Dempsey, JoeBrown, Bart223
10176 Registered Users
Top Posters(30 Days)
Lannis 105
reverb 90
Stuart 68
koan58 68
L.A.B. 54
Popular Topics(Views)
555,042 mail-order LSR
Forum Statistics
Forums34
Topics66,612
Posts645,585
Members10,175
Most Online3,995
Feb 13th, 2017
Like BritBike.com on Facebook

Previous Thread
Next Thread
Print Thread
Rate Thread
Triple standard carby size #710662
10/06/17 12:33 am
10/06/17 12:33 am
Joined: Feb 2015
Posts: 268
Melbourne Oz
S
Steven A Offline OP
BritBike Forum member
Steven A  Offline OP
BritBike Forum member
S
Joined: Feb 2015
Posts: 268
Melbourne Oz
Hi All,

I notice that aftermarket carby alternatives for our triples are the 26mm Mikuni and Keihins. However aren't the standard Amals 27mm?

Support Your #1 BritBike Forum!

Check out British motorcycles for sale:
British Motorcycles on e-Bay UK, British motorcycles on e-Bay North America
Check out British motorcycles for sale:
British Motorcycles on e-Bay UK, British motorcycles on e-Bay North America
Re: Triple standard carby size [Re: Steven A] #710703
10/06/17 1:18 pm
10/06/17 1:18 pm
Joined: Jun 2002
Posts: 9,694
Scotland
S
Stuart Online content
BritBike Forum member
Stuart  Online Content
BritBike Forum member
S
Joined: Jun 2002
Posts: 9,694
Scotland
Hi Steven,

Standard Concentrics for triples were bored to 27 mm. - you'll always find "626" cast on the bodies. I don't think there were ever any 27 mm. slide Mikunis or Keihins, so you'd have to bore 26 mm. ones of those?

Hth.

Regards,

Re: Triple standard carby size [Re: Steven A] #710740
10/06/17 10:33 pm
10/06/17 10:33 pm
Joined: Mar 2006
Posts: 1,241
Magnolia, TX
htown Offline
BritBike Forum member
htown  Offline
BritBike Forum member
Joined: Mar 2006
Posts: 1,241
Magnolia, TX
Just put on a new set of AMAL Premiers and very happy with them. Much easier to start with the factory jetting on the Amals and dial them in than starting from scratch with and after-market carb.


1978 Bonneville T140E
1974 Trident
1970 BSA Thunderbolt
1971 Norton Commando
1972 Norton Commando
2-1974 Norton Commandos
2004 XL 1200R Sportster

Everything will be alright in the end. If its not alright, its not the end.
Re: Triple standard carby size [Re: htown] #710746
10/06/17 11:08 pm
10/06/17 11:08 pm
Joined: Feb 2015
Posts: 268
Melbourne Oz
S
Steven A Offline OP
BritBike Forum member
Steven A  Offline OP
BritBike Forum member
S
Joined: Feb 2015
Posts: 268
Melbourne Oz
Originally Posted by htown
Just put on a new set of Amal Premiers and very happy with them. Much easier to start with the factory jetting on the Amals and dial them in than starting from scratch with and after-market carb.


I have one of these.

http://www.innovatemotorsports.com/products/lm2.php

so I don't fear some messing about.


Last edited by Steven A; 10/06/17 11:20 pm.
Re: Triple standard carby size [Re: Steven A] #710753
10/07/17 12:47 am
10/07/17 12:47 am
Joined: Apr 2005
Posts: 1,635
Mississauga, Ontario.
A
Adam M. Offline
BritBike Forum member
Adam M.  Offline
BritBike Forum member
A
Joined: Apr 2005
Posts: 1,635
Mississauga, Ontario.
Mine starts from first kick every time on original slightly used Amals and keeps nice idle.

Re: Triple standard carby size [Re: Steven A] #710755
10/07/17 12:54 am
10/07/17 12:54 am
Joined: Mar 2006
Posts: 1,241
Magnolia, TX
htown Offline
BritBike Forum member
htown  Offline
BritBike Forum member
Joined: Mar 2006
Posts: 1,241
Magnolia, TX
I have a screw driver and my bikes run fine with new Amals.

Last edited by htown; 10/07/17 12:55 am.

1978 Bonneville T140E
1974 Trident
1970 BSA Thunderbolt
1971 Norton Commando
1972 Norton Commando
2-1974 Norton Commandos
2004 XL 1200R Sportster

Everything will be alright in the end. If its not alright, its not the end.
Re: Triple standard carby size [Re: Steven A] #710759
10/07/17 3:02 am
10/07/17 3:02 am
Joined: Jun 2014
Posts: 99
Mullaloo Western Straya
B
Bodie Offline
BritBike Forum member
Bodie  Offline
BritBike Forum member
B
Joined: Jun 2014
Posts: 99
Mullaloo Western Straya
I've got a Gunson Colortune kit and a screwdriver .. What's a new AMAL Premier ?? grin

Re: Triple standard carby size [Re: Steven A] #711142
10/10/17 8:58 pm
10/10/17 8:58 pm
Joined: Feb 2012
Posts: 294
Southampton UK
P
Peter Gascoigne Offline
BritBike Forum member
Peter Gascoigne  Offline
BritBike Forum member
P
Joined: Feb 2012
Posts: 294
Southampton UK
I bought a pair of Mikuni VMs for my BSA A65 from here ready jetted. I'm very pleased with them. When funds allow I'm going to get a set for my T150.

http://www.allensperformance.co.uk/carb-kit/carb-kit-listings/


1971 BSA A65 Lightning "Bitsa"
1966 BSA A65 "Beezuki" with GT550 two-stroke engine
1974 Triumph T150 830cc
1975 Suzuki GT550
1975 Laverda 1000 3C
1986 Yamaha SRX 600
Re: Triple standard carby size [Re: Peter Gascoigne] #711276
10/12/17 2:04 am
10/12/17 2:04 am
Joined: Feb 2015
Posts: 268
Melbourne Oz
S
Steven A Offline OP
BritBike Forum member
Steven A  Offline OP
BritBike Forum member
S
Joined: Feb 2015
Posts: 268
Melbourne Oz
Originally Posted by Peter Gascoigne
I bought a pair of Mikuni VMs for my BSA A65 from here ready jetted. I'm very pleased with them. When funds allow I'm going to get a set for my T150.

http://www.allensperformance.co.uk/carb-kit/carb-kit-listings/


You will be facing the decision I have to make. Drop from 27mm to a VM26 or go up to a VM28.

Does it matter much? It would be interesting to find out.



Home | Sponsors | Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons | "OLD" BritBike Forum | DVD- Manuals & Parts books | BritBike Stickers & Decals
Upgrade to: Premium Membership | Premium Life Membership | Vendor Membership | Site Sponsor Membership
Powered by UBB.threads™ PHP Forum Software 7.6.1.1
(Release build 20180111)
Page Time: 1.171s Queries: 15 (0.007s) Memory: 1.0470 MB (Peak: 1.2282 MB) Zlib disabled. Server Time: 2018-04-27 06:53:32 UTC