the bike is flashing 2wd 4wd lights @2 seconds per time read manual and cant figure it out the 4wd works some what it will be engaged and it might stay or it will pop out

 

sounds like your 4wd seniod... It might have water in it. This is located up by the diffi. Also there is a controller under the seat that controls 4x4 and engine braking.

 

Not quite sure what is going wrong with your 650, but just started doing the same and the owner's manual (how i understood it) indicates that the belt drive may need adjusting or replacing.

 

OKAY DIRTFISH. AFTER READING MY REPLY TO YOU, I THOUGHT THAT I WOULD LOOK IN MY MANUAL FOR YOUR PROBLEM. FOUND THIS....

FLASHING 2WD/4WD INDICATOR LIGHTS SIGNAL A MUALFUNCTION OF THE ENGINE BRAKE CONTROL (K-EBC) SYSTEM OR THE SELECTABLE 2WD/4WD SYSTEM.

A FLASHING INTERVAL OF 0.5 SECONDS INDICATES A MALFUNCTION WITH THE 2WD/4WD ACTUATOR, A 1 SECOND INTERVAL INDICATES THE K-EBC ACTUATOR IS MALFUNCTIONING, A 2 SECONDS INTERVAL IF BOTH ACTUATORS ARE MALFUNCTIONING.

WOULD YOU BY CHANCE KNOW HOW TO REPLACE DRIVE BELT? EASY OR DIFFICULT?

 

found this on another site i frequent
Page 38 of manual says:

flashing 2wd/4wd indicator lights signal a malfunction of the kawasaki engine brake control system or the selectable 2wd/4wd system. A flashing interval of 0.5 seconds indicates a malfunction with the 2wd/4wd actuator, a 1 second interval indicates the KEBC actuator is malfunctioning, a 2 second interval indicates both actuators are malfunctioning.


also, the fuses under the seat could be to blame for many people's flashing lights. So, before you waste time and energy diagonosing problems with the 4x4 selector and KEBC, try this tip from another site i found

"Pull out each fuse and take a pair of pliers and just barely twist the ends of the fuse. I also took a small screw driver and tweaked the clips in the box. The idea is to make sure the fuse fit real tight. Once you have a tight fit use a small screw driver to place die-electric grease between the fuse contacts.