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Author Topic: Low fuel power loss?  (Read 686 times)

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Online 2wdrift

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Low fuel power loss?
« on: April 03, 2014, 05:44:25 pm »
I have noticed it twice, when my fuel gets a bit low on my R I have power loss at high RPM.

Has anyone else noticed this? It happens at about 40km range left or just before the low fuel warning screen pops up. Not sure if it is a built in feature or actual fuel starvation?

BTW I noticed it this afternoon when I did a robot to robot race with a R35 Nissan GTR. The way it ran I kept up with the GTR and didn't lose any ground, but I did feel the power loss so....

I will hunt the car down and have a rematch and record it on my go pro.... >:D :pot:
« Last Edit: April 03, 2014, 05:46:04 pm by 2wdrift »
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Online Bundu

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Re: Low fuel power loss?
« Reply #1 on: April 03, 2014, 06:16:48 pm »
are you sure both your fuel taps are fully open?

Online 2wdrift

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Re: Low fuel power loss?
« Reply #2 on: April 03, 2014, 07:17:36 pm »
Yes, I helped a stricken mate with some fuel from mine and double checked that both taps were open. I checked again when I filled up and both were open.

Or I might just be "that" guy that feels the 1190 is underpowered... :eek7:
XR650R the one and only
Calling upon my years of experience, I froze at the controls.  ~Stirling Moss

Don't worry my stutter is also bilingual...

Online Bundu

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Re: Low fuel power loss?
« Reply #3 on: April 03, 2014, 07:36:58 pm »
your fuel filter could be blocked, but unsure why it would only appear when tank is nearly empty

Online 2wdrift

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Re: Low fuel power loss?
« Reply #4 on: April 03, 2014, 10:56:36 pm »
I have a 2014 model with just under 8000km on. I cant see how the fuel filter could be clogged but I will have my dealer take a look.

The other possibility that I thought of is that the fuel tank lining is loose like on other bikes and that it or parts of it could foal on the fuel and when the fuel level gets a bit low it could maybe block one of the fuel outlets.

Thanks Bundu for the advice and ideas
XR650R the one and only
Calling upon my years of experience, I froze at the controls.  ~Stirling Moss

Don't worry my stutter is also bilingual...

Online Bundu

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Re: Low fuel power loss?
« Reply #5 on: April 04, 2014, 12:11:13 am »
good luck - let us know what the problem is?

Online 2wdrift

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Re: Low fuel power loss?
« Reply #6 on: April 04, 2014, 02:39:48 pm »
Will do, I will run her close to empty and then have the mechanic ride her.
XR650R the one and only
Calling upon my years of experience, I froze at the controls.  ~Stirling Moss

Don't worry my stutter is also bilingual...

Offline Shockwave

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Re: Low fuel power loss?
« Reply #7 on: May 03, 2014, 07:21:10 pm »
Sounds like a pressure equalization problem as the fuel runs low.  Try stopping off the two pressure equalization taps, remove the rubber tube at each end and air line it.  Also check the air tube that leads to the tank cap, and air line that one as well to check its clear.   Also try riding with the filler cap open, and if that solves the problem, the air bleed hole in the filler cap might be blocked.

Offline Offshore

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Re: Low fuel power loss?
« Reply #8 on: May 03, 2014, 09:21:46 pm »
I am experiencing the same problem on my 990 at the Moment. I can cruise for 200 km at 140-160  with no problems and then at Revs higher than 4500 she starts stuttering. I suspect that my Breather Pipes to the Tanks might be blocked.
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