I have 2000 Yamaha 115 four stroke, was out Saturday and had loss of power/missing issues. The diagnosis this morning was a blown head gasket.
A couple questions:
1) We think (this is a new to me boat) this may have been caused by the exhaust port being submerged when launching and idling at the dock (we are divers, this is on a 18 foot Avon RIB, it was loaded heavy in the stern). Could this be the cause? I think the take-away here is loading the boat differently and launching it with the motor trimmed up a bit.
2) The mechanic is mentioning cylinder head replacement as well. Uggghhhh. How often is this needed when you blow a head gasket, and (go ahead, slap me when I'm down) what is the ballpark cost?
-Doug
A couple questions:
1) We think (this is a new to me boat) this may have been caused by the exhaust port being submerged when launching and idling at the dock (we are divers, this is on a 18 foot Avon RIB, it was loaded heavy in the stern). Could this be the cause? I think the take-away here is loading the boat differently and launching it with the motor trimmed up a bit.
2) The mechanic is mentioning cylinder head replacement as well. Uggghhhh. How often is this needed when you blow a head gasket, and (go ahead, slap me when I'm down) what is the ballpark cost?
-Doug