View Full Version : Stock fuel pressure???


Samickguy15
17th July 2006, 16:44
Does anybody know what the stock fuel pressure is on the EFI buells??? Let's say for a 2000 X1 or XB12 or whatever would be comparible to a 1200

Kazoom
30th August 2006, 10:07
Sorry, kind of a late reply but from what I found out the fuel pump is a Walbro unit #521 19099-1b, 255 lph
simular to this one.

http://www.fuel-pumps.net/521.html

Samickguy15
30th August 2006, 22:31
That's interesting...That's a big ass pump for a motorcycle, at least in terms of LPH...

chrishajer
1st September 2006, 17:33
All the Buell EFI and DDFI expect 50 PSI. I think the range is 49 - 51 PSI on he XB DDFI and 47 - 53 PSI on the tubers. So, in my brain, 50 PSI is OK for them all. Kinda like spark plug gap is .038" to .043": that's .040" to me.

--Chris