I have 1983 XJ650YICS and I bobbed it, replaced the key with a switch, now no spark at plugs I think, pretty sure its a wire, I bought it like this, it's a great bike, just need that wire connected.

Murtaza Akberali Versi

• 767 Answers
• Posted on May 13, 2009

SOURCE: Bike won't start. Only hitting on 2 cylendars

Please visit this site for the illustration,
http://www.maxim-x.com/dyna_coils.html

SOURCE: Bike won't start. Only hitting on 2 cylendars

posible vacuum leak replace vac line to fuel tank

SOURCE: 1992 yz125 no spark

Wire may have came off stator or coil

Testimonial: "i have new stators on the way. just checking incase something els could be wrong thanks "

SOURCE: no fire in one cylinder

Spark Plugs.

Delage guy

• 167 Answers
• Posted on Mar 29, 2010

SOURCE: no spark at spark plugs so wont fire

Check the coils first, leaving the key on may have burnt out part of your ignition system.
Easiest way to check coils is to pull one lead off, plug a spark plug into it. Run a hot wire from the positive side of the battery to the coil ( Do Not Plug it in!!) . If you flash the wire on and off the power side of the coil it should make a spark jump across the sparkplug ( don't forget to earth the base of the plug.)
If the coils are ok, see if you can borrow a CDI unit to try in your bike ( it is good to have mates with the same brand of bike )
Don't forget to check all fuses first and make sure the "Kill Switch" on the handlebars is on.
Happy fault finding.