some time will and sometime won't start

Joined
Jul 17, 2011
Location
longview,tx
#1
There iis a lot of knowledge on thie site so I hope one of:hook you may have an answer to this problem. My fishing / hunting partner has a 115 HP yamaha on his boat, the problem is it will start and run fantastic when cold, shut it off and fish a while and the only way it can be started is by removing the cowl and disconnecting the white wire at the main terminal strip,now if it is killed and then strated right away ,no problem. he has been told it is every thing from the power pack to the ignition switch and has spent a lot to no avail. Any one have an idea?. He will dance at your wedding if you can Help. Thanks in advance