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Main : Misc Disintigrated piston and sleeve - NON DATTO RELATED

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Disintigrated piston and sleeve - NON DATTO RELATED
Disintigrated piston and sleeve - NON DATTO RELATEDPopular
SubmitterVelocitiMore Photos from Velociti   Last Update2007/12/24 6:17    Tell a friendTell a friend
Hits1574  Comments5    0.00 (0 votes)0.00 (0 votes)
From a yamaha YZF450 Quad.

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Poster Thread
Velociti
Posted: 2007/12/24 7:39  Updated: 2007/12/24 7:39
Home away from home
Joined: 2007/5/18
From: South Africa
Posts: 729
 Re: Disintigrated piston and sleeve - NON DATTO RELATED
Could be a factory fault, but it is over a year old and has been raced quite a bit since.

Poster Thread
datto1000wagon
Posted: 2007/12/24 9:21  Updated: 2007/12/24 9:21
No life (a.k.a. DattoMaster)
Joined: 2006/5/2
From: Darwin NT
Posts: 2079
 Re: Disintigrated piston and sleeve - NON DATTO RELATED
stress from the racing formed small cracks then the whole thing decided to give and decintegrated?

Poster Thread
Cable_Tie
Posted: 2007/12/25 20:28  Updated: 2007/12/25 20:28
Home away from home
Joined: 2004/6/4
From: Brisbane, Australia
Posts: 770
 Re: Disintigrated piston and sleeve - NON DATTO RELATED
My sisters quad (Same, YZF450) did exactly the same.

Pulled out of the shed and flew apart.

I have photo's at work if you remind me in the 2 weeks I can email them through.

Smashed the crankcase as well. . .

Yamaha supplied the parts, sister had to pay labour. Was under a year old. . .

Poster Thread
Velociti
Posted: 2007/12/24 6:19  Updated: 2007/12/24 6:19
Home away from home
Joined: 2007/5/18
From: South Africa
Posts: 729
 Re: Disintigrated piston and sleeve - NON DATTO RELATED
The piston came apart at +/- 9000 rpm. Can someone tell me why?

Poster Thread
1200GXman
Posted: 2007/12/24 6:46  Updated: 2007/12/24 6:46
No life (a.k.a. DattoMaster)
Joined: 2003/11/28
From: South Africa, Bloemfontein
Posts: 1469
 Re: Disintigrated piston and sleeve - NON DATTO RELATED
Factory fault maybe?