Motorcycle Repair: 1983 gpz750, cdi

Question
i have been trying to get this engine started but with no luck,i have got a good spark on cylinders 2 and 3 but no spark on 1 and 4,i have tested the coil and this seems ok as do the pickups,i am at a loss as what to try next,any suggestions please?

Answer
Kevin, There may be a bad connector from the pulse coil to the CDI or a bad connection from the CDI to the coil not allowing power to the coil. Test everything,leaving nothing to chance. If you have tested the coil and the pulse coil by the flywheel its probably a bad connection.