First post so I apologize of its in the wrong section or anything like that. Anyways, I bought a 2009 Sm610 with about 9k on it. The bike ran great until one day I took it to work, and when I went to leave, it wouldn't start. It was just turning over and wouldn't even try to pop of. It never had any issues until then, no indications of any problems. So once I got it home, I tested for spark and fuel. Fuel pump works, tried spraying starter fluid in the intake but still nothing. When I checked for spark, nothing. I checked fuses, replaced the plug and wire but still nothing. I tool off the crank case cover and the stator looks intact, magnets are still in place. Kill switch is functioning properly. I've inspected all the wires and connectors, they all seem good. Bike still won't run tho and I'm out of ideas besides loading up the parts canon and firing away. So if anyone has any ideas or thought I'd be more then willing to hear them because I've been pulling my hair out with this bike for over a month now. Thank you!
My 630 has similar problem and it seems the ignition coil is bad. Its not that hard to test it, so you should look at it. If you dont know how to, then check the manual or ask here
Seems crazy but try a different battery ,I had one that turned over and all tested good unhooked the battery and jumped with another and fired right up.Make sure intake manifold is not ripped or broken and bolts havent backed out another really common no start problem.