Early t540xp no start

[NashvilleTN]

Was there ever a solution to the early t540xp no start when warm? Assuming I have the starting procedure correct. They were seemingly flooding. I can’t remember if there was ever a remedy for this. I have two that have just been sitting on the shelf for the better part of ten years. They still start up, run, cut, and idle GREAT. They STILL won’t start back up after they get warm/hanging from saddle.

 

[Crimsonking]

I have had a gen 1 for a couple years that only yesterday did the “thing”. Open the fuel tank enough to relieve the vapor lock, then continue. It got mine going again.

 

[NashvilleTN]

I have tried that! The onlyyy way I was able to get these to start back up in the past is manually hold the stop button and pull it like ten times, then try. Then maybe even have to repeat that once or twice. I just didn’t know if there was a fix to not need to do anything at all

 

[chiselbit]

Back then husky dealers were doing a free upgrade on the vent. Fixed the problem

 

[Bendroctanus]

In my experience, the piston is probably scored.

 

[Bart_]

Just yesterday and today the weather warmed and I got hot no-restart on an FS85R. Cooled off restart fine. Tried relieving tank pressure on a hunch today hot and voila restart.

 

[ghostice]

I'd be interested in knowing if you are using Husky/ Stihl ready mix or Aspen or EtOH gasoline/ mix for fuel.
In winter, up north anyway, winter gasoline has a higher Reed Vapor Pressure (RVP - i.e. more light ends like ethane, propane) for starting when engine is cold. Speculation, but if it's fairly fresh winter gasoline (hence higher RVP) that could contribute to vapor lock in two strokes in the summer heat. Other thing maybe is check your gasoline for water. Lots of sstations are doing a bit of "doctoring".