Hello, if you still do not solve your problem, check spark plugs, if the spark plugs are black is problems with gasoline, light it at night or in a dark place in case there are current jumps where it is, Czech filters, hoses both as a gasoline line and those of emptiness, if you are not afraid of discharge of the spark plug wires. Be strong and bluish. You will also realize if the fault improves or worsens. This is a somewhat archaic test but it is lucky.