Can anyone help me with info about FJ1100 or 1200 carbs.
I have a 1981 XS1100 and the diaphrams are shot . To replace them would cost £200 plus, which made me wonder if a set of FJ carbs are that much different to my old girls.
Can I find inlet sizes and general dimensions through this forum ??
What's the problem with the old ones?
If it's just pinholes, they can probably be repaired.
Randy T
Indy
the old diaphrams have been repaired bofore and the rubber has started to perish..
Where are you?
There are a few people on here that help out, maybe your close enough to one.
So you can bring yours to compare against. I know nothing about the xs carb compared to the FJ.
Bob W
Are you in the UK? Talking £££'s makes me wonder.
I've got 2 XS1100's and i'm based in UK. I use this site for US http://www.xs11.com/forum/ (http://www.xs11.com/forum/) and this site for UK www.benefiscal.co.uk/forum (http://www.benefiscal.co.uk/forum) .
You've got to pay for quality..
Can anybody tell me if the carbs off a FJ1100 or 1200 would fit my 1981 XS1100 ??
Are the inlets anywhere near the same size ? or are they completely different in every way..
My diaphrams are beyond repair now, and a new set costs hundreds..
Yes.
According to the official Yamaha parts microfishe, your 1981 XS1100 shares the same part # (14900) as our 1984-1987 non fuel pump FJ carbies.
Here look for yourself (click on "Proceed to Parts" button):
http://www.yamaha-motor.com/sport/myyamaha/prompt/L3Nwb3J0L3BhcnRzL2hvbWUuYXNweA==/Parts%20Catalog/starthere.aspx (http://www.yamaha-motor.com/sport/myyamaha/prompt/L3Nwb3J0L3BhcnRzL2hvbWUuYXNweA==/Parts%20Catalog/starthere.aspx)
Bookmark this site....Hope this helps. Pat
Thank you Pat. They do look to share a lot of the XS 1100 carb parts . According to my Haynes manual the model number is BS34-II 2H9-0 not sure what all of that means, but as far as I could see BS34 doesnt match ?
So why start a second thread on the same topic? :scratch_one-s_head:
Quote from: rktmanfj on May 02, 2011, 04:47:36 PM
So why start a second thread on the same topic? :scratch_one-s_head:
A Good question, topics hereby merged.
Quote from: Pat Conlon on May 02, 2011, 06:13:29 PM
Quote from: rktmanfj on May 02, 2011, 04:47:36 PM
So why start a second thread on the same topic? :scratch_one-s_head:
A Good question, topics hereby merged.
Thanks, Pat! :good:
Here's another link. Scroll down to find the XS1100 diaphragms. £30 each, times 4 equals £120.
http://www.nrp-carbs.co.uk/yamaha_carburettor_diaphragms.htm (http://www.nrp-carbs.co.uk/yamaha_carburettor_diaphragms.htm)
Are you from the UK?
I've put some FJ1100 carbs on my XS11, and they are a better fit, slide right on, you just need to push the airbox further forward.
As to how the bike runs with standard FJ carbs, like a bag 'o' shite. You will need serious jetting mods.