Hello Guest User,

Please feel free to have a look around the forum but be aware that as an unregistered guest you can't see all of it and you can't post.

To access these 'Registered Users Only' areas simply register and login.

Which Carbs?

Need help restoring, building, or finding then try here.

Moderators: KeithZ1R, chrisu, paul doran, Taffus

Message
Author
User avatar
coldsummer
Hardcore
Hardcore
Posts: 3211
Joined: 29th Jun 2009
Location: Berkeley

Which Carbs?

#1 PostAuthor: coldsummer » Thu Nov 12, 2009 12:39 am

Trying to find some Z1A carbs with no success. I believe they are 28mm which are difficult to find. Question is, would the more commonly available 26mm carbs work, and are there any other options :?:

User avatar
Surfdeneige
Custard Cream
Custard Cream
Posts: 694
Joined: 8th May 2005
Location: Banchory (Centre of the Universe)

#2 PostAuthor: Surfdeneige » Thu Nov 12, 2009 8:26 am

Simon, try the 34mm that are on it first unless it is an asthetics issue. Secondly I understand the only difference between the two is about reliability not performance.
A ken fit like!

User avatar
coldsummer
Hardcore
Hardcore
Posts: 3211
Joined: 29th Jun 2009
Location: Berkeley

#3 PostAuthor: coldsummer » Thu Nov 12, 2009 9:43 am

Surfdeneige wrote:Simon, try the 34mm that are on it first unless it is an asthetics issue. Secondly I understand the only difference between the two is about reliability not performance.


I probably will Ken, just thought it would be nicer (looks and running wise) to have original carbs. Strange logic considering what I'm planning for the rest of it :wink:

User avatar
ROZZER
Custard Cream
Custard Cream
Posts: 663
Joined: 17th Sep 2006
Location: Workington, Cumbria, UK

#4 PostAuthor: ROZZER » Thu Nov 12, 2009 12:04 pm

Bike will run perfectly well (arguably better than the 28's)on the 26mm carbs from a Z900. If your not bothered about originality go for it or try carbs from Z1000/Z1R etc.
AKA John Roscoe. PUM #028
1975 Z1B, 2013 Z800

Rich
Hardcore
Hardcore
Posts: 2835
Joined: 4th Mar 2003

#5 PostAuthor: Rich » Thu Nov 12, 2009 5:04 pm

29mm smoothbores, but if you have 34mm CVs on try them. Go to Wired Georges site if you have trouble
Rich
diplomacy is a form of art - I was never any good at art

User avatar
coldsummer
Hardcore
Hardcore
Posts: 3211
Joined: 29th Jun 2009
Location: Berkeley

#6 PostAuthor: coldsummer » Thu Nov 12, 2009 7:46 pm

Rich wrote:29mm smoothbores, but if you have 34mm CVs on try them. Go to Wired Georges site if you have trouble


Thanks for the advice. What/who is Wired George??

User avatar
KWACKERZ1
Hardcore
Hardcore
Posts: 1729
Joined: 1st Sep 2007
Location: Leicestershire

wired george

#7 PostAuthor: KWACKERZ1 » Fri Nov 13, 2009 12:03 pm

WIRED GEORGE IS A CARB SITE WITH GOOD INFO.


http://www.wgcarbs.com/index.php?option ... &Itemid=27

User avatar
coldsummer
Hardcore
Hardcore
Posts: 3211
Joined: 29th Jun 2009
Location: Berkeley

#8 PostAuthor: coldsummer » Fri Nov 13, 2009 12:20 pm

Thanks KwackerZ1 I'll give that a good browse!

User avatar
simon gilling
Regular Poster
Posts: 96
Joined: 25th Apr 2002
Location: Warwickshire

#9 PostAuthor: simon gilling » Sat Nov 14, 2009 5:17 am

hi there, I fitted some 26mm carbs to my 1972 Z1, they physically fit ok, a bit deeper front to back but only a few mm. They run really nice, smooth even tickover, better,better low rev pick up than the 28mms and on a run 55-60 mpg at 70-80 mph. They may have clipped a little off the top speed, but the driveability at low to medium revs is where I use it most of the time.

Regards

Simon G.
Don't ask me, I just got here myself!

User avatar
coldsummer
Hardcore
Hardcore
Posts: 3211
Joined: 29th Jun 2009
Location: Berkeley

#10 PostAuthor: coldsummer » Sat Nov 14, 2009 10:25 am

simon gilling wrote:hi there, I fitted some 26mm carbs to my 1972 Z1, they physically fit ok, a bit deeper front to back but only a few mm. They run really nice, smooth even tickover, better,better low rev pick up than the 28mms and on a run 55-60 mpg at 70-80 mph. They may have clipped a little off the top speed, but the driveability at low to medium revs is where I use it most of the time.

Regards

Simon G.


Thanks Simon, that is interesting to know. Seems bigger isn't always better?


Return to “Bike Help”

Who is online

Users browsing this forum: No registered users and 13 guests