KymcoForum.com
General => Technical | How To => Topic started by: 245luigi on September 08, 2020, 05:23:41 PM
-
Hey y'all long time no talk. I'm working on retuning my LIKE70 2t setup. In doing so I just bought a needle kit. To understand the differences between the needles I made a spreadsheet of the diameters vs length of the needle. Larger diameter at a given point should mean less fuel more air vs a smaller diameter of a given point meaning more fuel less air.
Here are the variables defined, D and E and do not apply to PHBG needles:
https://lh3.googleusercontent.com/proxy/rJ88lCY9AmVdtHggVEViJZzmYPjvjCjx4Tolgylh9ORID5tGvd-xFGN3CsOEc7He3HWro4Z8DLzkanOkY_bkxgE9WzN3w7wMu8-EwrI993kJxHw1IGKYMV7ZD2lnfg (https://lh3.googleusercontent.com/proxy/rJ88lCY9AmVdtHggVEViJZzmYPjvjCjx4Tolgylh9ORID5tGvd-xFGN3CsOEc7He3HWro4Z8DLzkanOkY_bkxgE9WzN3w7wMu8-EwrI993kJxHw1IGKYMV7ZD2lnfg)
My chart is attached. Also good other dimensional info is here
https://www.apriliaforum.com/forums/showthread.php?309259-DellOrto-PHBG-Needles-Measured (https://www.apriliaforum.com/forums/showthread.php?309259-DellOrto-PHBG-Needles-Measured)
Looks like tip of needle to first clip is 39mm but I will measure that myself. I also want to find out how far below the clip 1/2-3/4 throttle is located. No idea if this stuff is useful but cheers!
-
I added a gradient to see if that helped visualize the rates of change and relative sizes. The specific colors mean nothing though. Maybe it will help get a feel for the taper, I dunno
-
I tried another gradient system. The previous was a gradient with all values considered. This one is gradients within tips that end in the same value. I am having too much fun now.