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> How much fuel should flow?, Out of fuel pump with EFI
Rocky
post Oct 4 2009, 07:27 PM
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My super reliable 75' 1.8 now will not start. It has stock injection. I do have spark! Injectors show no fuel outflow when cranked. I then went to the pump and when cranking over it shows a steady low flow of fuel. Shouldent I see a pretty high rate of pressurized fuel given these are putting out over 20 psi? This is the original fuel pump.

I know I havent posted in a while... Im a looser (IMG:style_emoticons/default/wacko.gif)

Rocky
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type47
post Oct 4 2009, 08:02 PM
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for a '75, I found in the workshop manual a figure of 62 liters per hour. Later on in the workshop manual, it shows testing the fuel pump, you should get at least .5 liter in 30 seconds of running the pump (into a measuring container).
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Posts in this topic
Rocky   How much fuel should flow?   Oct 4 2009, 07:27 PM
type47   for a '75, I found in the workshop manual a fi...   Oct 4 2009, 08:02 PM
914Sixer   Check L-Jet testing info. Fuel pump power does no...   Oct 4 2009, 08:23 PM
Rocky   If I assume fuel flow is adequate out of pump but ...   Oct 4 2009, 08:33 PM
type47   If I assume fuel flow is adequate out of pump but...   Oct 5 2009, 05:24 AM
Rocky   If I assume fuel flow is adequate out of pump bu...   Oct 5 2009, 09:51 AM
davesprinkle   If I assume fuel flow is adequate out of pump but...   Oct 5 2009, 10:47 AM
zonedoubt   Check resistor pack, double relay. Here's a g...   Oct 4 2009, 09:49 PM
Rocky   Yep, its connected. BTW, nice bike. 400 supers...   Oct 5 2009, 11:12 AM
davesprinkle   Good eye. Yeah, it's a 400 four. My other pr...   Oct 5 2009, 03:24 PM
r_towle   The fuel pump does not come on in Ljet until after...   Oct 5 2009, 04:00 PM
davesprinkle   The fuel pump does not come on in Ljet until afte...   Oct 5 2009, 05:24 PM
zonedoubt   That's the function of the double relay. http...   Oct 5 2009, 05:33 PM
Cap'n Krusty   I'm gonna try to get the factory troubleshooti...   Oct 5 2009, 06:04 PM
Rocky   All great advice! I will give it a once over ...   Oct 5 2009, 08:01 PM
Rocky   Im on the road again!!! :driving: Du...   Oct 10 2009, 12:11 PM
zonedoubt   Good stuff! :headbanger: L-jet isn't as...   Oct 10 2009, 12:26 PM
davesprinkle   Good stuff! :headbanger: L-jet isn't a...   Oct 10 2009, 01:22 PM


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