Hey guys, been looking st a lot of previous posts on this issue but I still can't figure it out. I've got a 50hp 1989 force that only fires on one cylinder. I've read the DCI trouble shooting guide multiple times and still cant figure the issue out. I'll go through everything I know. Bear with me, I've tried a lot. Ok.
1) The flywheel: all magnets are in place and when I run a screw driver around it I feel pull everywhere and no weak points that I can identify. Also no play in them. And the timing key is present and good.
2) The stator. The white sets all read within proper resistance, and I have a DVI adapter, and both output sets (blue black brown and yellow black brown) both put out 250v when it's running. I'm pretty sure that it's good. Swapped wire sets just to be sure and no change on which plug was firing.
3) Rectifier: DCI says to disconnect the rectifier, if it starts firing that's the issue. Nothing changes when I disconnected the red charge cable.
4) Coils: if I swap the coil cables coming off the DCI box the issue moves from one to the other, so I know both coils can fire.
5) Trigger: thought this was the issue, but I bought a new one and same issue. When running I measured the voltage and this is what i got. CDI box left and trigger right. Nothing changed with the new trigger.
Yellow to Yellow brown 1.6 set 2.
Green to Green brown .6 set 1
Orange to Orange brown 2.5 set 2
Red to Red brown 1.3 set 1
I marked the sets that correspond to each coil.
I then rearranged the trigger cables to swap sets to see if it would move the issue, and it didnt, here is that voltage test.
Yellow to red brown 1.3
Green to yellow brown .6
Orange to green brown 2.4
Red to orange brown 1.3
I find it very interesting that even though the trigger sets are swapped the over all voltage didnt change on the CDI box wire side... I also dont know, is that the voltage coming from the trigger or from the trigger and DCI as a combo? Unsure of how that works.
that leads me to the DCI box.
6) DCI box. I dont really know how to test this. I've taken off the kill wire, and that didnt change the issue at all. There is an orange and red cable going to the coils, one per. When swapping the trigger cables only the orange one fired both times. This is also my second DCI box (used off Ebay. So no guarantee that its 100% but the seller claimed it was off a good motor) I haven't had a chance to test the original one the same way as above to see if there is a change, but I really dont want to buy another DCI just to have the same issue.
is there any other tests that you guys can think of, really need some guidance on this one. Thanks.
1) The flywheel: all magnets are in place and when I run a screw driver around it I feel pull everywhere and no weak points that I can identify. Also no play in them. And the timing key is present and good.
2) The stator. The white sets all read within proper resistance, and I have a DVI adapter, and both output sets (blue black brown and yellow black brown) both put out 250v when it's running. I'm pretty sure that it's good. Swapped wire sets just to be sure and no change on which plug was firing.
3) Rectifier: DCI says to disconnect the rectifier, if it starts firing that's the issue. Nothing changes when I disconnected the red charge cable.
4) Coils: if I swap the coil cables coming off the DCI box the issue moves from one to the other, so I know both coils can fire.
5) Trigger: thought this was the issue, but I bought a new one and same issue. When running I measured the voltage and this is what i got. CDI box left and trigger right. Nothing changed with the new trigger.
Yellow to Yellow brown 1.6 set 2.
Green to Green brown .6 set 1
Orange to Orange brown 2.5 set 2
Red to Red brown 1.3 set 1
I marked the sets that correspond to each coil.
I then rearranged the trigger cables to swap sets to see if it would move the issue, and it didnt, here is that voltage test.
Yellow to red brown 1.3
Green to yellow brown .6
Orange to green brown 2.4
Red to orange brown 1.3
I find it very interesting that even though the trigger sets are swapped the over all voltage didnt change on the CDI box wire side... I also dont know, is that the voltage coming from the trigger or from the trigger and DCI as a combo? Unsure of how that works.
that leads me to the DCI box.
6) DCI box. I dont really know how to test this. I've taken off the kill wire, and that didnt change the issue at all. There is an orange and red cable going to the coils, one per. When swapping the trigger cables only the orange one fired both times. This is also my second DCI box (used off Ebay. So no guarantee that its 100% but the seller claimed it was off a good motor) I haven't had a chance to test the original one the same way as above to see if there is a change, but I really dont want to buy another DCI just to have the same issue.
is there any other tests that you guys can think of, really need some guidance on this one. Thanks.