Dellorto PHBG needle listing with angles

Michael Forrest /

OK here are the needles for the 15-19.5mm PHBG carbs with their angles listed (which Dellorto failed to list). The needle taper is mostly for affecting the mid throttle jetting (rich/lean). Here is my site about carb jetting: http://www.dragonfly75.com/moto/carbjetting.html What I have found out by messing with my jetting calculator is that positioning the needle up or down has been erroneously suggested to do in order to correct the mid throttle jetting but I now know that the needle height needs to be mostly for when the needle taper kicks in to start letting more gas in. This page illustrates: http://www.dragonfly75.com/moto/NeedleHeight.html

PHBGneedles.gif

Re: Dellorto PHBG needle listing with angles

Pretty cool site! Gonna test out both sides of a variated range on your calculator and compare to my jetting for funzies

Re: Dellorto PHBG needle listing with angles

www.dragonfly75.com/moto/jettingMikuniTM.html

I am interested in this...maybe I have not had enough coffee yet but how do you actually get to the spreadsheet page? Maybe I missed the link.

Re: Dellorto PHBG needle listing with angles

Michael Forrest /

If I was rich I would give it away but I am struggling to survive like many others are, and I have put many many hours into making this jetting calculator so I sell it for a moderate cost as well as some other calculators. There is a link to them from the page I already listed.

sheet3D.gif

Re: Dellorto PHBG needle listing with angles

Michael Forrest /

Just click on the HOME link at the bottom of the page.

« Go to Topics — end of thread

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account