Hey all. Ive got my XS400 up and running then all of a sudden it died! It cranks and cranks but won't fire. I grounded out the plugs and no spark. Changed the plugs (New NGKs), still no spark. Changed the ignition switch and the coils. Still no spark. I do however get a spark out of the plugs when they are grounded if I turn the ignition switch on and off. . . What's next in line to change out? The voltage regulator? Rectifier? Ignitor unit? Any thoughts?? Thanks!!

  Special Man said:

Hey all. Ive got my XS400 up and running then all of a sudden it died! It cranks and cranks but won't fire. I grounded out the plugs and no spark. Changed the plugs (New NGKs), still no spark. Changed the ignition switch and the coils. Still no spark. I do however get a spark out of the plugs when they are grounded if I turn the ignition switch on and off. . . What's next in line to change out? The voltage regulator? Rectifier? Ignitor unit? Any thoughts?? Thanks!!

points and condensor if it has a set

+1

Either the points have closed up or they are bridged in some way. You are performing the same function switching the ig on and off, as in stopping the primary voltage to the coils which is what generates the spark. The one good point from this is that everything else must be ok for it to spark. Have a close look at the points they may have slipped.

Yep,, must agree with both replies above ..............

Well, that was it!! I checked the points and sure enough, the main bolt was loose! Took it apart, cleaned it up, put it back to spec. . . and she cranked right up. Thanks all!! This club rocks!!