Flying a new ST 75 in the 4*ARF. Since day one I have been having engine hesitation problems, (only on take-off). I noticed today that the pickup fuel line, where it comes thru the firewall is close to an inch lower than the centerline of the carb. Supertigre, as well as other engine manufacturers recommends the fuel pickup line being no lower than 3/8 ths of an inch.
My question is #1, could this be causing my engine hesitation problems. Where the engine is struggling to pull the fuel up.
2nd, has any other 4*60 owners experienced this problem.
3rd, do I need to pull the tank out and raise it? That would be a pain.