'03 450F lower end needs help

6 replies to this topic
  • DBH

Posted October 08, 2005 - 12:14 PM


I'm told by my friendly local Yamaha dealer that I need lower end bearings and possibly a crank for my '03 450F. After a $250 inspection fee, they said it would be nearly $2500 to fix the lower end. Is this a normal fee, or is this ridiculous? Does anyone know of a mechanic other than OEM who could fix this for less? I live in the Sacramento area.

  • cheekz

Posted October 08, 2005 - 02:06 PM


it cost me £390 for a new crank bearing and labour so i think he is ripping u off big time it would be easer 2 buy a new bike lol :banghead:

  • 642MX

Posted October 08, 2005 - 03:47 PM


Seems high to me.

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  • Pincushion

Posted October 08, 2005 - 04:46 PM


Thats robbery. Crank is about $300 and bearings will be a few hundred, so they're quoting you for about $1700 labor. Walk away....

Whats wrong with the bike? Why did you take it in?

  • matt116

Posted October 08, 2005 - 06:37 PM


That's way to high
250 for an inspection ouch!
I would invest in some tools and do it yourself before you know it you'll be helping other people change there cranks.

  • yzf450jack

Posted October 08, 2005 - 07:34 PM


even if the cases were trashed it would not be that much I would say $600.00 for the 4 speed $300.00 for cases $ 250.00 to the mechanic and thats ALL :banghead: :banghead: :lol: :lol: :lol: :busted: :busted:

  • DBH

Posted October 08, 2005 - 08:02 PM


A new top end was put in it, and I raced three days at Washougal during the amateur days before the National (and it ran perfect.) Got back home and rode it, and it died on the track. I got it re-started and rode back to the pits. I went out again and rode a few laps, then it died again, like it was starving for fuel. It wouldn't re-start. The piston would go through its stroke, but had a funny exhaust note, and wouldn't start. It backfired a few times as well.

I dropped it off at a Yamaha shop, which quoted me three hours for a leak down inspection, compression check, and something else. Then they call and say they got it started, but it had a loud knock in the lower end. I asked roughly how much to replace any damaged parts. They said bearings and crank probably need replacing, and said approximately $2500. I told them I'd be picking the bike up right away. I may not be a motor expert, but I'm not stupid either.

Maybe they're talking about replacing it with a new factory motor for that price? haha

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