Quote:
Originally Posted by ironman
I had a similar situation with my my 149 last year, very hot day and beating it hard.
Started to run erratic amd then died. Cranked but no start.
It happened to be that the last time I replaced the fuel line I used clear see thru line.
When this situation occurred I could see the fuel in the line going into carb was bubbling and dancing around so I assumed it was boiling in the carb bowl.
After the activity died down in the fuel line it started and ran fine.
I guess they refer to this as fuel percolation, on older vehicles with carburetors you will hear mentiions of vapor lock.
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Thanks for mentioning this. Seems so likely that I maybe experienced something very similar. I have regular black fuel line but it was really hot and I worked it hard, so it may well have been bubbling in there! No erratic running though before it died. It might remain a mystery. Find out next time perhaps.