PHBL 'D' needles

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john.t5
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Tue Mar 13, 2018 10:02 am

Is there a commonly used range of D needles with an easy guide for lean to rich - like is available for the PHBH carb i.e X12 - X7 - X13 - X2 - X25 ?

I'm sitting too rich on a D29 on the top clip so don't know where to go - and I don't really understand the charts showing diameters and tapers lol.

YAMLAM
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Tue Mar 13, 2018 12:55 pm

Have a look here:-http://www.thisoldtractor.com/dellorto_ ... ides-.html
Looking at the chart D21,D22,D28,D29 are all 2.5 x 1.8 with various taper lengths
,D22,D25,D26,D36,D37 all 2.5 x 1.4 x various tapers .
cant remember but i think the longer the taper the richer the needle
. Im Sure Dan or another adult will confirm.
win or lose have a booze

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