Wierd noise from fule pump/throttle body/airbox area

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Syltiz · #1 Post by **Syltiz** » Mon Jul 06, 2009 12:36 pm

No... not the Falco, but on my GSXR which I am restoring. The GSXR forum is pants so Im trying you lot with this.

When I turn the igniton on, the fuel pump primes as it should but at the same time there is an odd squeeking/grinding noise from the right side of the airbox/injection rail. It might be the pump but the priming noise and this squeek noise dont sound like they are coming from the same place. Its very hard to describe, it lasts about a second - probably has something to do with the fuel pump priming. I first noticed this when the bike was dry... i then put fuel into her for the first time and the noise has remained. Incidentaly I cannot get her to start so I dont think fuel is getting through to the cylinders.

Any thoughts?

BikerGran · #2 Post by **BikerGran** » Mon Jul 06, 2009 7:03 pm

Dunno but I get a strange 'physical' kind of noise from my ancient GT550 when I turn the ignition on. I've been ignoring it for years.

Syltiz · #3 Post by **Syltiz** » Mon Jul 06, 2009 9:31 pm

My superior powers of investigation

have narrowed the problem down to the servo motor which operates the secondary throttle valves. Something the Falco does not have. The motor is either shagged or the rods need some greasing.

Fausto · #4 Post by **Fausto** » Tue Jul 07, 2009 1:03 pm

There's very little that cannot be improved by a good rod greasing session.

BikerGran · #5 Post by **BikerGran** » Tue Jul 07, 2009 6:08 pm

I bet Rod would agree!

D-Rider · #6 Post by **D-Rider** » Tue Jul 07, 2009 8:35 pm

Fausto wrote:There's very little that cannot be improved by a good rod greasing session.

BikerGran wrote:I bet Rod would agree!

Emu's looking worried .........

Syltiz · #7 Post by **Syltiz** » Sat Aug 01, 2009 1:32 pm

*pushes his way past the comedians*

So.. an update for those that are interested. Steve Jordan Motorcycles fixed this in 1 hour

... a big dent in my confidence as a home mechanic. The problem at the end of the day? The fuel pump was not functioning and the replacement I sourced from Ebay did not work either. 3rd pump lucky though - thankfully Steve Jordan Motorcycles allowed me to leave the bike there for a week while I bought another fuel pump. The remainder of the problem? The rod was not greased enough... no really.... I thought it was but from standing for 3 years somehow gunk had built up and prevented the secondary throttle bodies from rotating properly.

SJM were fantastic... they collected the bike and I am now waiting for them to drop it off again. Best of all... they did not pull the ring with massive charges - the whole thing cost me £115.

Now my next problem... I leave for my France trip on Aug 21.... do I take the Suzi or the Falco....hmmm....

#8 Post by **Kwackerz** » Sat Aug 01, 2009 7:21 pm

Steve J has always been bloody good! His race team are equally as good too

Fausto · #9 Post by **Fausto** » Sat Aug 01, 2009 7:30 pm

Syltiz wrote: Now my next problem... I leave for my France trip on Aug 21.... do I take the Suzi or the Falco....hmmm....

Well if you have to ask that then what are you doing here?

Although I feel sure you are kidding

jayboy · #10 Post by **jayboy** » Fri Aug 07, 2009 11:00 am

Pay for a mate to ride the GSXR, have an hour's hoon on it now and again and then get back on the Falco!

BikerGran · #11 Post by **BikerGran** » Fri Aug 07, 2009 6:23 pm

Syltiz wrote:*pushes his way past the comedians*

Sorry!