I have a trx .15(used engine, never herd it run) that needs to be tuned and I forgot the basics because its been a while...
What's a good starting point on the high jet?
And what's the max and min turns on the high from all the way in on the high jet for safe running? Thanks.

the stock setting for the hsn is 4 turns from closed.start there and start leaning out the engine by 1/16th or 1/8th incraments untill at high speed it starts to cut out or stall then back off a 1/8th of a turn and you should be perfect