THe second cylinder seems to not fire as good as the other four im kinda new at all this bike tech but if anyone has any tips that would be nice

Yamaha XS1100 special

Changed plugs checked for spark, there is definitly spark

changed all the gas lines

and well it just doesnt seem to run right

THe second cylinder seems to not fire as good as the other four im kinda new at all this bike tech but if anyone has any tips that would be nice

Yamaha XS1100 special

Changed plugs checked for spark, there is definitly spark

changed all the gas lines

and well it just doesnt seem to run right

well it could be as simple as the carbs need to be cleaned and or rebuilt or could have restricted air flow that would be what i would check first

Check also the ignition wires, could have a faulty one there.

You need to check the compressions of all the cylinders to find out if there is a problem.

check the wires under the left engine cover as u sit on bike this is the vacum advance. while the bike is running gently tug or push the two small stretchy wire you should get a noticeable difference in rpms replace with longer heavier wire. and i do agree with the others clean your carbs and try them and then clean them again and then once more just for fun

THe second cylinder seems to not fire as good as the other four im kinda new at all this bike tech but if anyone has any tips that would be nice

Yamaha XS1100 special

Changed plugs checked for spark, there is definitly spark

changed all the gas lines

and well it just doesnt seem to run right

There is a mantra on these bikes.

Clean the carbs.

Check them and then clean them again.

Now that their clean, clean them again.

Make sure you can get carb cleaner to blow through ALL the little passages, and make sure you remove the jets and clean them out. Then make sure to do a GOOD carb sync, as these things are VERY sensitive to carb sync issues.

Also while this is a great site, there are both US and UK specific XS1100 sites, although both sites have members from all over the world. The US site is xs11.com and I don't remember the URL for the UK site, but IIRC there is a link on the US site somewhere.

Thank you for all your help, I havnt got them synqed yet my friend has the tool to do it.. I got it running nice but i think you are all right about cleaning the carbs

thank you very much