gsx 1100 ef

[cheshirekat]

I have a gsx1100 katana with an ef engine in it was running off an on 3 /4 cylinders thought it was one of the plug leads causing the problem changed one of them and thought that had cured it got ignition lights and fuel but no spark now it has fitted dyna3 ohm coils taylor ignition leads and a dyna s ignition could it be the dyna that's at fault or something else causing the problem

[wraith]

If it cylinders 3 & 4 that are not firing it won't be the dyna s or coils, as the bike runs cylinders 1-4 & 2-3 

try removing the plugs and swapping them from 4-3 to 1-2 and so on and see if it runs or the problem swaps cyinders.

[johnr]

if its a single cylinder then its unlikely to be coils, try plugs first, then try swapping the coils over to see if the problem moves.  im assuming youve done a compression test?

[cheshirekat]

problem sorted now new set plugs in  seems to be running ok for now