Reply To: idles good, revs good, put it in gear no power – GV250 Aquila 250
what size are the main jets ?
Have the slide needles been altered (it has 3 settings = richer (best) , factory , lean (bad) ?
Are the slides sicky (check they might not be lifting or retracting properly to allow the main jets to give out the fuel needed for power
What size are the “pilot jets” and “main jets” on the bike ? let us know
Also look at the spark plugs (get fresh cr8e first) , go for a short ride if possible, pull them out and take loads of pictures to show us.