Quote:I am building a custom bike with a Savage engine - I think it's an early engine , the serial number is P401-106734. I wired it all up, and had it running . I now have the tank etc all fitted, so I tried it again - but this time, NO spark. It has a new coil and a new ECU. I have an idea what might have gone wrong, perhaps a loose connection - but when wiring up, I wired a lead from the ignitor to the starter solenoid as shown in the diagrams, BUT it only started while the starter motor ran! so I wired that lead to another power source and it ran OK. But I don't like the idea that I have in reality not wired it right, and now it won't go. I intend to re-wire the whole ignition now. I tested the coil, it is OK, so now I will try to test the ignitor.
Keith,
I just went back and reread the above from one of your earlier posts. I'm having second thoughts about your pickup coil despite the fact that it apparently tested OK.
Has the bike ever run except when you had power to that lead between the igniter and the starter solenoid ? It looks to me like that wire supplies the signal to the igniter while the engine is cranking and then is disconnected as soon as the solenoid disengages. At that point the signal comes from the pickup coil to switch the transistor in the igniter on and off.
You said this is a custom build. Does that mean you are not working with a stock wiring harness ?
I found this in the tech section:
http://suzukisavage.com/cgi-bin/YaBB.pl?board=tech;action=display;num=1173898705May be some help if you are wiring the bike from scratch.