2004 sportsman 400

The electric starter engages using a solenoid in conjunction with a throw out bearing. I believe the problem is the gear is stuck against the flywheel gear teeth. You may be able to break it free by rotating the engine in the opposite direction.

Or the wire connections to the starter and solenoid are loose. Also check the battery cable connections and all ground connections. There maybe a problem with the start switch. With the key on , you maybe able to jump the starter solenoid with a wire connected directly to the + on the battery. This will test the solenoid and bypass the starter switch.

Check your serial number to see if it falls into the recall notice related to ECM MODULE FAILURE. Most were 2005 models but wouldn't hurt to check. See link:

http://www.cpsc.gov/cpscpub/prerel/prhtml05/05568.html

To answer your question pertaining to the pull start failure, it maybe dirty. Most engage by the pull force of the rope (centrifugal force).

You can take off the cover and inspect the pull cord assembly.

Make sure your battery is charged and not to old. You don't want to be stranded in the wood just before dark.

There are plenty of parts replacement center you can order a new starter on line.

Example: http://www.motorcycle-superstore.com/4/DVG/ATV.aspx

Send me an E-mail if you have additional questions.

Best Regards,

Tim