2001 Suzuki DR-Z 250 will not start

SOURCE: Battery on 125cc Suzuki GS is ok- but not being charged

You need to have stator coil tested.
An alternate problem could be the regulator/rectifier.
Both of these should tbe checked by a dealer

Cheers

Jon

SOURCE: my dr 250 1984 has low compression

your carb got stuck and it sounds like your rings are burnt out like u were running to high of an octane or something in your gas

SOURCE: My suzuki gsxr 750 loses power with new batteries

your katana does have an alternator on the rear of the motor

SOURCE: Suzuki GS 750 Starting

Hi
Sounds like someone has customised your bike - does it have a RH switchgear?
there shd be 3 connectors for the RH switch in headlamp - a 3 pin & 2 singles, the 3 pin has 2x orange/white + 1x yellow/green, this connects to 1x orange 1x orange/white +1x yellow/green wire which are for the kill + start
The singles are 1x orange/green + 1x white (loom side) which go to 1x orange + 1x white respectively, these are for the brake light
If you are keeping the kill sw then its only the yellow/green wire that can be discarded.You can also follow it back to the starter disconnect sw - junk that - keep tracing it back to the starter solenoid & junk that too. If you want to keep the electrical accessory output terminal then connect that straight to the battery or to the orange wire from the ign sw to the fuse box. You can also junk the thick wires from the solenoid, 1x to batt + 1x to the starter motor
You can junk the starter motor too ( 2 bolts then pull away from sidecase & up at the rear) but make sure you block the hole up!
If you want to bypass the ign sw then disconnect the 4 block from it & jump the red to the orange & also the brown to grey (for lights etc)
Good luck & ride safe
Bike-Doc

SOURCE: Low voltage at coil on 1983 DR 250

Check for a short, or partially broken wire between CDI and coil. If your wiring is goodbetween there, check between CDI and pick up.