carburetor ID

[jetmechmarty]

My XS1100 had a broken carburetor. It has four BS34 carbs, I took carb body from a same year XS650 with BS34 carbs. I swapped all the innards and put it in the bank. It didn't work. Is there any way of telling these apart in a visual examination? What's the difference?

[CatatonicBug]

IIRC, all 4 carbs are different in some way fropm each other. #1 has the spot for the choke detent ball. #2 has the vacuum port. #3 &4 point the other direction, and #4 has the spot for the detent ball as well.

Depending on the year/model, the innards are different too, and can be different across the set in the same bike. Some have different jets on 2&3 to run cooler than 1&4, and the emulsion tubes are different in the inner carbs too.

Look at the number of holes on the jets/emulsion tubes, and be sure they are the same. Of course, the sizes of jets may very well be different between the 650 and the 1100.

[jetmechmarty]

I swapped the jets and everything else. I used only the body from the XS650. It certainly looks the same. The bike starts and runs great until I open the throttle.

I have since repaired the original carb and I hope to be riding the bike in a day or two. I had the broken post welded by MOTORCYCLECARBS.COM

[SFSPECBIKER79]

carb repair

what was the cost for the nice weld on your carb? i have a couple that needs the same fix. thanks

[jetmechmarty]

The following was copied from MOTORCYCLECARBS.COM:

Pricing ranges from 80-120$ per repair on average. Send us your carb and your broken part (dont forget to send the pivot pin, and float for spacing) to the address on the contact us page. And we will have it turned around and back for you in about two weeks. Email us if you have any questions. Additional billing to your card on file may be processed based on time spent on your job. Things that add time are; removal of prior evicences of repair, build up of areas like pivot pin hole, and then drilling, and ground areas.

We can also fix cracks in float bowls and other areas that need to be built up.

I should have done this before I tried everything else. It would have been the cheapest in the long run.