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Discussion Starter #1
I'm riding an '02 Daytona 9551 with a little over 7000 miles and no mods. This winter, when I start her up on cold mornings, the bike makes a sustained buzzing sound. Its the same buzz that happens when I first turn on the bike before starting it (electric ignition/fuel pump -correct?) The buzzing does continue for some time but doesn't seem to affect performance. Only happens on cold mornings. Is this something I need to contact my dealer about or just a cold bike trying to warm-up?

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I have the same thing on my RS. Never did figure if it is the fuel pump for sure. Had a dealer tell me it was the fuel pump going out a few years ago, but as I said that was a few years ago and I finally just started ignoring it. Other than the buzzing driving me nuts until it decides to quit I haven't had an issue. The sound doesn't occur when it's warm. I figure it's something to do with the cold weather and leave it at that.
 
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It's not the pump

Its the Fuel pressure regulator, i had the same noise the first minute after starting, whit warm engine no problems, changed the FPR and the problem is solved :wink:
 

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Discussion Starter #5
Thnaks Flatslide. It looks like a simple enough replacement job.


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