Join Date: Nov 2004
Location: Haines City, Florida 2006 MV Agusta F4 1000
Well if you hit the starter button and it clicks, but you bypass the starter solonoid and the starter engages and cranks the motor, then your "starter button" problem is just that solonoid, and that's a pretty common issue with all motorcycles (not like super common, but it DOES happen). That's not why you're not getting spark, though. If the motor cranks when you bypass the solonoid but it doesn't turn over, then you have to look at other issues.
First things first replace that solonoid so you don't have to bypass it every time you want to troubleshoot your spark problem. With the solonoid fixed (or if you want to keep bypassing it) ground a spark plug to the frame and hit the starter button. Do this one at a time and check to make sure all plugs are getting spark. If one or more aren't sparking, but the plugs look good, check the wires and coils for damage. Coils are also known to need to be replaced every now and then on any older or fixer-upper bike.
If you get spark on all four plugs but the motor still won't turn over, then my guess is that you need to clean your carburetors.
First, observe the throttle bodies and make sure they're opening and closing properly with the throttle, then inspect all the fuel lines for leakage, kinks or restrictions, remove the air filter, and try to turn it over with no intake restrictions. If still no joy, you're looking at probably gummed up carburetors or a motor with almost no compression. Kawi motors are more or less bulletproof, so if the spark and air filter are fine, and the throttle bodies operate properly, it almost has to be the carbs.