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+--- Thread: 2004 FZS1000 Not running on all cylinders. (/showthread.php?tid=83672)
2004 FZS1000 Not running on all cylinders. - CountFazer - 19-11-24
Hi All,
My bike isn't firing on all cylinders.
At first cyl 1 didnt fire from cold sometimes. I swapped the spark plug cap with cyl 4 to try isolate the problem. Left it for a couple of days. Then when I started the bike cyl 3 was not firing.
I've now checked ignition coil resistance, spark plug cap & lead resistance and they were all normal. When I plugged everything back together, cyl 2 & 3 were not firing. I then swapped the plug caps around some more but still cyl 2 & 3 not firing.
However, if I pull the plug caps off the spark plugs a bit so that they are loose, the cylinders fire!
Any ideas would be greatly appreciated.
Cheers,
CountFazer
RE: 2004 FZS1000 Not running on all cylinders. - Trebus - 19-11-24
If you suspect electrical then probably be carbs and vice versa!
Has it been laid up? Could the pilot jets be blocked? Sometimes a run through with some carb cleaner additive can work but only ever had limited success.
Sounds like you might be chasing your tail somewhat. Usual advice will be to cut a few mm of the end of the HT leads to ensure you have a good connection.
RE: 2004 FZS1000 Not running on all cylinders. - CountFazer - 20-11-24
(19-11-24, 07:52 PM)Trebus Wrote: If you suspect electrical then probably be carbs and vice versa!
Has it been laid up? Could the pilot jets be blocked? Sometimes a run through with some carb cleaner additive can work but only ever had limited success.
Sounds like you might be chasing your tail somewhat. Usual advice will be to cut a few mm of the end of the HT leads to ensure you have a good connection.
Hi Trebus,
I inspected the plugs for cylinders 2 & 3 and they were both fouled and not sparking properly, so I replaced them.
After that all cylinders were working. I also replace plugs for 1 & 4 for good measure.
The carbs were cleaned about 9 months ago (3000 km ago). Maybe the mixture screws were not set correctly.