Seems more folks on your side of the pond use Dellorto PHBL/H carbs. I have both a PHBL25 and a PHBL24 for my mildly tuned SX150(175). One of them I will keep as a spare ready to pop on if required. Hope you can share some advice for a couple of questions:
1) How much difference should I expect in jetting between the 24 and 25 on the same scooter? I'm thinking maybe just a touch on the mix screw and maybe a needle clip position?
2) What is the bigger jump in fuel flow? a) moving needle clip up/down a position with the same atomizer (AV264), or b) needle clip in same position but going up or down on the atomizer (AV262 or AV266)
Thanks for any advice.
