no spark

[keith mayall]

got new coils new points and condenser,plenty of juice in the battery ,but no spark..if the alternater wires are compremised{blue plug}could this be the problem.not removed alternator cover yet,engine has been out of frame .

[Pigford]

Check kill switch & ignition switch - also neutral/kiskstand cutout switch if fitted?

[keith mayall]

Check kill switch & ignition switch - also neutral/kiskstand cutout switch if fitted?

..all ok theres no stand cut out switch.kill swich new..

[z1bman]

have you got battery voltage at the coils? are the points wires insulated between the small fibre washers?

[Mark Tiller]

do u have 12v at coils?

[DavidZ1R]

Had the same problem on my 550 project, turned out that the ignitor was not getting a good earth because of the powder coating on the new bits!, but you dont have an ignitor but check there is a good earth.

[keith mayall]

do u have 12v at coils?

I don't have a multimeter,to check but I don't think so,also the earth wire which ataches to the little grill thing above battery on right sde gets warm.

[z1bman]

the main earth from the battery bolts to the top crank case just above the kick start & there is a short piece of earth wire coming from the negative battery terminal & plugs into the main wiring harness

[ZedHead]

do u have 12v at coils?

I don't have a multimeter,to check but I don't think so,also the earth wire which ataches to the little grill thing above battery on right sde gets warm.

Do you mean above or below the battery? It sound like a combined regulator/rectifier. What bike is it on? Ultimately you are going to need a meter to trace the problem or better still someone that knows zed electric s if you are uncertain. There maybe someone on here who is local to you who can help.

[keith mayall]

the main earth from the battery bolts to the top crank case just above the kick start & there is a short piece of earth wire coming from the negative battery terminal & plugs into the main wiring harness

z900 a4 don't have that earth wire on the crank,all the electrics work epcept no spark..thats whats frustrating.

[keith mayall]

do u have 12v at coils?

I don't have a multimeter,to check but I don't think so,also the earth wire which ataches to the little grill thing above battery on right sde gets warm.

Do you mean above or below the battery? It sound like a combined regulator/rectifier. What bike is it on? Ultimately you are going to need a meter to trace the problem or better still someone that knows zed electric s if you are uncertain. There maybe someone on here who is local to you who can help.

just above the battery opposite from the coloured plugs.its a a4..powder coated frame.all the lights and indicators ect work.

[z1bman]

the main earth on all z1 /z900a4 are earthed at the crank case

[keith mayall]

the main earth on all z1 /z900a4 are earthed at the crank case

.I will check it out,i don't remember unbolting one when I stripped it.its wine time now,will be on it tomorrow.,,thanks.

[z1bman]

this is a mk11 engine which it later than yours but the earth wire attaches to the engine about 2 inches below the rear top engine mounting on the right hand side. small 6mm threaded hole in the crank case

[keith mayall]

this is a mk11 engine which it later than yours but the earth wire attaches to the engine about 2 inches below the rear top engine mounting on the right hand side. small 6mm threaded hole in the crank case

yea connected the earth to the correct place,still no spark,there seems to be nothing to the coils,tried the old coils still no joy,connected a live straight to the live coil wires and still no spark,its got to be something simple,ive cleaned all the coloured plugs checked all connections.