Weird noise and unrelated oil leak

6 replies to this topic
  • sjwr450

Posted November 02, 2004 - 06:33 PM


My 450 has a weird noise. When you give it gas (only) it squeaks. Like a mouse. Even in neutral going down the trail. Any ideas? No it's not the chain.

Also I have oil leaking from a bolt that hold the cylinder down. It's the bolt that the clutch cable bolts too. It's minor but annoying. Replace the washer, tighten, any ideas?

  • grayracer513

Posted November 02, 2004 - 07:05 PM


The first thing that comes to my mind is an exhaust leak at the head/header. It should be under warranty, right?

  • sjwr450

Posted November 02, 2004 - 07:11 PM


Warranty? No I don't think so. Were you reffering to the noise or oil leak?

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  • grayracer513

Posted November 02, 2004 - 09:40 PM


I don't know, both. Maybe it's a habitual holdover from working around cars for so many years, but I sort of expect an '05 model to get some kind of owner support. Come to think of it, it's a dirt bike. They probably have a clause that says the warranty ends as soon as you start it. What was I thinking?

  • CBreaken

Posted November 02, 2004 - 09:47 PM


If your squeak sounds kinda like a whistle, and it gets higher pitched as the engine revs higher, this is normal, it's just the sould of air being inducted into the air box as far as I can tell.

  • ThrakenH04

Posted November 03, 2004 - 03:51 AM


Mine was making a sound sorta like that from day 1 of buying it. I think its normal.

  • sirthumpalot

Posted November 03, 2004 - 03:58 AM


Normal, I think it's the carb, but it does sound like air getting sucked by something. Mine has done it since the beginning at small throttle openings. I've got the 426 but I can see how this would be similar on both bikes.

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