perdix

Hi any suggestions? Cat starts on the button usually but if it doesn't catch or I stall !! sometimes it just shows the lights and does nothing.The relay under seat does click.I am in neutral the stand is up or down. Battery is fine and connections to it are good. I remedy it by putting it in 2nd rock it forward and usually it goes as per normal.Happened first time other day but getting a bit more common. Is this a stuck starter motor, do they?Any thing else to check before taking it to shop? Thanks.