- over a few biers and bullshit-i dont drink 
-the topic turned to Dell'Orto carbs...was interesting so i started taking notes as i have thought about going there myself...i havent tried these so dont take this as gospel
- the general consensus was that PHF DD-destra or right and PHF DS-sinistra or left as 30, 32, 34mm are better suited for the XS, some have used 36, 38 40mm versions but found them over the top...get them paired DD and DS otherwise setting problems arise
- the 32 and 34mm versions had been successfully mounted in SE 650 and SR 500 manifolds, the SE 650 had the advantage that vacuum barbs are present
- for second hand carbs look for ducati or guzzi models
- lever choke not cable, and is only required on the LHS
- you want the models with the round plastic or alu cover, not the tubes, cables enter at 45° or 75°, some have side cable mounts and are better for space
- get the version with an accelerator pump
- brace against vibration
- use softer return springs
- get the 2 into 1 cable fittings as found on Ducati California III and Guzzi Le Mans IV
Some Info XS650 Dellorto
best dellorto handbook ive found scroll down the page to carb section
this old tractor some info here too…dont really find this too interesting tho
ducati meccanica interesting site...the following are found there
dellorto tuning guide
factory jetting guide
dellorto jetting/dellorto parts book
needles charts
setting float levels
factory set-up for singles
PHF parts list and diagramme
from stein-dinse.de
needle chart PHF
slides
jets
from dell orto
english version of manual found here
some settings
PHF32
Slide................60-3....50-3....50-3....50-3....70-2
Idle jet................50.......57.......55.................57
Main jet.............170.. ...125.....125.....135.....125-130
Atomiser............265......262.....265...............262
Needle...............K16........K6.....K18................K6
Starter jet...........75........75.......80...................
Needle Ventile.....250......250......250...................
Pump jet..............?.........35........35...................
Float........................................10g @ 18mm
...............PHF30........PHF36
Slide....................................50-3
Idle jet...........55.....................57
Main jet........125....................120
Needle..........K23-mid setting.....K5-top setting
Atomiser.......262....................262
Float............8.5g
- dont forget this was liberally lubricated with mind altering substances so reader beware
PHF36
PHF30
-the topic turned to Dell'Orto carbs...was interesting so i started taking notes as i have thought about going there myself...i havent tried these so dont take this as gospel- the general consensus was that PHF DD-destra or right and PHF DS-sinistra or left as 30, 32, 34mm are better suited for the XS, some have used 36, 38 40mm versions but found them over the top...get them paired DD and DS otherwise setting problems arise
- the 32 and 34mm versions had been successfully mounted in SE 650 and SR 500 manifolds, the SE 650 had the advantage that vacuum barbs are present
- for second hand carbs look for ducati or guzzi models
- lever choke not cable, and is only required on the LHS
- you want the models with the round plastic or alu cover, not the tubes, cables enter at 45° or 75°, some have side cable mounts and are better for space
- get the version with an accelerator pump
- brace against vibration
- use softer return springs
- get the 2 into 1 cable fittings as found on Ducati California III and Guzzi Le Mans IV
Some Info XS650 Dellorto
best dellorto handbook ive found scroll down the page to carb section
this old tractor some info here too…dont really find this too interesting tho
ducati meccanica interesting site...the following are found there
dellorto tuning guide
factory jetting guide
dellorto jetting/dellorto parts book
needles charts
setting float levels
factory set-up for singles
PHF parts list and diagramme
from stein-dinse.de
needle chart PHF
slides
jets
from dell orto
english version of manual found here
some settings
PHF32
Slide................60-3....50-3....50-3....50-3....70-2
Idle jet................50.......57.......55.................57
Main jet.............170.. ...125.....125.....135.....125-130
Atomiser............265......262.....265...............262
Needle...............K16........K6.....K18................K6
Starter jet...........75........75.......80...................
Needle Ventile.....250......250......250...................
Pump jet..............?.........35........35...................
Float........................................10g @ 18mm
...............PHF30........PHF36
Slide....................................50-3
Idle jet...........55.....................57
Main jet........125....................120
Needle..........K23-mid setting.....K5-top setting
Atomiser.......262....................262
Float............8.5g
- dont forget this was liberally lubricated with mind altering substances so reader beware
PHF36
PHF30
