PHBL Questions
Posted: Wed May 12, 2010 2:58 am
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.
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.