i have a 1984 40 hp johnson motor my problem is when i turn the key the starter engages the flyweel and spins the motor less then a second the motor stops and i just have a sound as if the starters spinning the splines on the starter shaft but the gear to the flyweel just sits idlewont move. i let key go and gear stays engaged to flyweel . motor spin freely by hand,gear on starter moves freely on starter splines.no sticking. is it the starter, battery or solinoid ,or wires.