01ps Posted May 23, 2010 Share Posted May 23, 2010 I have an 82 XS400 with electronic ignition. The last time I had my bike running it was fine. It sat for about 12 days in the garage, battery unhooked most of it. I installed a new battery today (freshly charged) and it would not start, turned over and over and then one huge backfire. I pulled the left plug and had no spark. Here are the symptoms -I shorted the battery by accident to the frame while I was installing it. -Sometime I get a spark in the right cylinder, sometimes not. -When the right cylinder is working, if I swap the signal wires to the coils I will get spark in the left cylinder, none in the right. -After the starter runs and stops, there is a pause and then a spark on the right cylinder (discharge?) -I checked all the plugs leading to the coils, the pickup coil, etc. -I am using a booster pack for a battery power. Link to comment Share on other sites More sharing options...
01ps Posted May 23, 2010 Author Share Posted May 23, 2010 Update : now I have nothing, no spark at all. I have checked all the connection to all the plugs and cleaned them, I opened the ignitor box to see if I can see any damage, nothing at all, no solders cracked, no hot spots, etc. I checked the off/run/on switch and it seems to be working. Cleand and checked the conections inside the headlamp. I guess I need to know how to test the ignitor, the rectifier, etc. I don't have access to any parts bikes so this could be difficult. Link to comment Share on other sites More sharing options...
01ps Posted May 23, 2010 Author Share Posted May 23, 2010 Update again I found the problem, one of the terminals int the plug to the ignitor was busted in two. Replaced an away I go. Took me 7 hours and tearing half my bike apart to find it. I checked that plug about 6 times before I noticed it... Link to comment Share on other sites More sharing options...
Moderator drewpy Posted May 24, 2010 Moderator Share Posted May 24, 2010 glad to be of no help on this one well done you Link to comment Share on other sites More sharing options...
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