Originally Posted by
AGragg
Arrow motor is fast but can't get a good tune, pretty sure there's an air leak and now thinking about it I think I saw random air bubbles in fuel line. Anyone else have issues with this tank? I even put in my os speed in, and it ran better then the arrow but still felt funky and never ran that way in the mbx.
Check your fuel filter o-ring, I had one a while back chasing a tune and I ended up dunking the fuel filter with lines blowing in one side, capping other in water and detected small bubbles around threaded cap. I ended up applying Racers Choice sealer or (Lucky7) to threads and retighten cap, let it cure some and retest.
Hope this helps