yz450 piston problems


4 replies to this topic
  • JSC_YZ

Posted October 29, 2004 - 10:01 AM

#1

I have worn out my piston and rings on my 04 yz450 in about 75 hours. Is this normal?
What kind of piston should I get/ brand/ high compression/ coated ect..?

  • YZDAD1

Posted October 30, 2004 - 06:42 AM

#2

Well, the one you want to replace lasted 75 hours without failure..................

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  • FFRacing79

Posted October 30, 2004 - 08:12 AM

#3

75 hours...wow...I wouldn't complain! As far as a replacement, I would suggest either the Wiseco or J&E Hi Comps.

  • xeslaro

Posted October 30, 2004 - 02:50 PM

#4

Just curious... How did you know they were worn out?
75 Hours.. How did you measure this? When I had my DRZ i didnt have an hour meter and estimated my engines running time. When i got my YZF I bought a moto-minder hour meter and soon realised that i had been over-estimating my running time by at least double...

  • JSC_YZ

Posted November 01, 2004 - 09:57 AM

#5

I carry a Garmin GPS that tells me my moving time, speeds, ect... I realised that a days worth of riding usually consists of about 3 to 4 hours, not 5-6 like I used to think.





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