hi i have a johnson 60hp 3 cylinder rov. runs ok on low revs. when u try to put it on the plane its ok for about 5mins then dies back. If you leave it on full revs it will go on plane again then dies down again. Just keeps doing this. I think its fuel not getting in. Its as if the powers there but not. I have put in new tanks x2, new fuel lines, new fillters, ( checket in let on tanks ) clean out carb, have new coils not fitted yet. Do u think i should put in new fuel pump. help if you can please.
