I recently bought a used 2007 Crossrunner 200cc ATV (Chinese). I have issues with the starter, the starter spins, but does not engage the gears and crank the engine. I had the problem right after I bought it, the guy I purchased it from went into the clutch assembly, fixed the solonoid and it worked great for one day.

Now I have the problem again and would like to just fix it myself.

Can anyone tell me what the problem is and how to go in and fix it?