Fuel Problems I Think
Posted 05 September 2011 - 08:07 PM
Posted 05 September 2011 - 09:41 PM
Posted 06 September 2011 - 06:38 AM
Posted 06 September 2011 - 08:24 AM
Posted 06 September 2011 - 04:35 PM
Posted 06 September 2011 - 05:08 PM
the busa pumps have a filter inside them, maybe worth a try. it deffo sounds like fuel starvation. have you put a new filter in it or is it a filter king that you just empty the bowl?
make sure the fuel hose is not trapped anywhere or close to any heat source where it maybe collapsing with too much heat.
make sure the pump wires are good and they are not loose in any way.
it could be a knackered pump
im not sure what else it could be? hopefully some other busa builders on here will post up some possible causes.
Posted 07 September 2011 - 07:06 PM
I also had the same problems. Gon out repeatledly in the right hand bend
and sometimes at accelarations.
I was not able to detact error. I simply moved the original pump back to
the engine to its original position and installed electric
near the tank. electric pump only fill the original busa pump.
all problems are gone. the only thing needed is to install return line of gasoline.
Posted 07 September 2011 - 07:26 PM
Posted 10 September 2011 - 03:27 PM
Posted 11 September 2011 - 08:58 PM
Posted 12 September 2011 - 10:13 AM
I am guessing that you are running some 'E' marked track tyres, like Yoko A048's, Toyo R888's, Kumho V70A's or similar, the 'E' certifies that the tyre complies with the dimensional, performance and marking requirements of ECE Regulation 30. These tyre do have tread but the very bare minimum so as to be certified a road legal (E) - these are normally known as 'road legal track tyres' or just 'track tyres' - open to discussion if people think otherwise...
All that said and done I hope the new pipe and clean out sorts your problem.
Reading what LukeZ had to say about his setup made a lot of sense to me in that previously the fuel pump would have had a certain amount of gravity feed to it so fitting the original pump closer to the fuel rail and another small pump near the fuel tank to feed the original pump would give the effect of being gravity fed from a bike tank sitting above the engine. The small pump combined with a return line would then not over feed the original pump, it can just take what it needs and the rest gets sent back to the tank.
I look forward to hearing if the new pipes fixed the problem.
Posted 12 September 2011 - 05:34 PM
Posted 14 September 2011 - 06:49 PM
Last night I took the mini for a blast and at the exact same point approx [10 miles] it started to draw back and on a right hand bend just died ,I had left the pressure guage on to moniter the fuel pressure on the test, I found the pressure drop when it was drawing back eventually it cut out all together no pressure ,switching on and off the ignition half a dozen times the pressure would rise enough to start it and get a few more yards untill the pump was making a loud screeching noise before blowing a fuse the pump was very hot ,letting it cool for 20 mins and emptying the contents of the screen wash bottle on it I put a new fuse in it and away it went untill it heated up I ended up getting a tow home when I un bolted the pump with the engine running tilting it slightly it makes a strange noise and cuts the engine ,their must be a bearing gone on the motor or something anyway a new pump on order . I knew their had to be someting on the car that was faulty as I have done 1500 with the set up with no problems
Thanks to all for your advice on the fuel problem and the egg collector can get back to sucking eggs Cheers
Posted 14 September 2011 - 07:57 PM
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