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There is a weird sound after turning on the ignition. I know that the valve will open up when the ignition is turn but there is a funny sound added to the valve opening. Does anyone know what is the p

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  • Md Faizal Nov 05, 2012

    Thanks Ionel. So the electronic sound made after turning the ignition to ON is the fuel electric pump and not some valves right? I am curious as to what valve is opening up the moment I turn it to ON.



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The noize seems to be as a fuel electric pump .. damaged, this is what i think..

Posted on Nov 04, 2012


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Using all caps makes it sound like you"re shouting...

It sounds like you have either lost your camshaft drive (broken timing chain, or belt, or broken gear(s)), or your camshaft has broken right where the driven end is. In any event, your cam is not turning.

I worked on a Ford van once with gear to gear drive for the cam, but the cam gear was a fiber/resin gear (for quiet running). There was a crank-shaft-gear shaped scoop carved out of the cam gear. Had I not seen that, I would have thought gear-to-gear drives can never fail. Apparently not.

Posted on Jun 15, 2010

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SOURCE: does yamaha fz1 exup valve

It is possible that the "brain" cycles the exup valve as part of the start up process.

Posted on Nov 02, 2010

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I thought I already replied to this question -- here is a repeat if so, otherwise, please see the bottom addition - Ck
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  1. Check fuel level in fuel tank, add fuel if empty.
  2. Check battery condition and state of charge. If voltage and load test below specification, charge or replace battery.
  3. Check battery terminal and cable condition and tightness. Clean terminals and replace damaged, worn or corroded cables.
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  6. Check for fuel contamination such as water in the fuel. During winter months, the water may freeze and cause a fuel restriction. Adding a fuel additive may help, however the fuel system may require draining and purging with fresh fuel.
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