My reply from Bing Carbs.

[Steve Minor]

I emailed Bing Carbs. for the specs for my Bing 54,38mm on my 1977 400 GS6. The text below is their reply. Could some of you guys (more knowledgeable than myself) please comment. I want to order parts so that they arrive next week.

Stock Jetting Specs @ sea level are:
44-051-185 Main Jet @ $4.38
45-120-3,22 Needle Jet @ $8.15
46-360-401 Jet Needle in position 2 from top @ $7.07
44-353-50 Idle Jet @ $11.72
54 Soft OHGK ( contains gaskets, o'rings, float needle, pivot pin and cable
grommet) @ $30.17
We accept Visa or MasterCard. You may order by email or call 800-309-2464.
Respectfully,
Fay




Edited by - steve minor on 08/22/2003  10:17:46 AM

[Mike Lenz]

That should gst you pretty close.