vapor lock problem

[tinathetige]

2000 Tige 20i
No problems for years, then last few summers began having vapor lock issues. Problem occurs without warning. Engine runs fine, several hours, no problem, then alarm will sound and engine dies. Finally took to mechanic for help. Mechanic replaced one way valves on fuel tank and on vent tube. Boat ran great all day. No problems. Next day, after running for awhile, then sitting idle for an hour or more, won't start. Alarm sounds, engine backfires. Dead in the water. Any suggestions???

[chpthril]

Vapor lock is typically an issue that occurs with the engine off and the engine bay is heat soaking. With the engine running, the constant circulation of fresh cool fuel from the tank, prevent the vaporization of the fuel, in the lines.

[Ruger761]

They are correct add the fuel pump by the tank and you wont have any issue with vapor lock again, or at least I never have.