i know it aint exciting cos its only a 1300 chapper n not a cvh turbo, worth or the like but its my runabout so please help!!!

problem is shes only runnin on 2 cylinders. ive changed plugs n leads and no change.

now this engine is the 1.3 ohv hcs engine, which runs with DIS (Distributerless Ignition System) so basically rather than a coil setup uve just got a ignition module bolted on side of block (my xr2i has the same setup on the efi, bolted on side of head if that helps??)

tryed usin another module off a 1400 cvh with DIS but no change , still only firing 2 plugs!!!! nos 1 and 3 to be exact ( firing order 1,2,4,3)

so................. suggestions please!!!!!!