what piston for 04 450

6 replies to this topic
  • danzick

Posted April 18, 2011 - 02:04 PM


so my 4th is blown, and the motor is comin out to get that replaced, and im gonna do a rebuild since i dont believe it has had one since 04. im looking to get a little more compression probably like a 13 to 1 piston. whats a good company you guys have had luck with? and i shouldnt need race gas with an increase of .5 should i?

  • danzick

Posted April 19, 2011 - 04:46 PM


anyone? just pulled my top end off, and everything looks great. thinking about going with the moose racing piston kit.

  • BBrown626

Posted April 19, 2011 - 05:50 PM


I highly recommend the OEM piston. You can get a good price on them at North County Yamaha's e-bay site. ncyamaha?

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  • Yamaryder29

Posted April 19, 2011 - 06:00 PM


oem for sure, it's proven and probly cheaper than any others

  • danzick

Posted April 19, 2011 - 06:50 PM


but wont it run better than oem with 13 to 1 compression? i ride in the dunes wide open racing up dunes

  • grayracer513

Posted April 19, 2011 - 07:40 PM


I wouldn't advise that. You're better off with a known brand name. Moose could be anything. Frankly, if it were me, I would stay with an OEM replacement unless I were racing the bike at a level where power was almost the only thing costing me races, in which case I'd go a full point higher. Then my choice would be a CP, but I'd want one with two compression rings, if I could get it.

  • danzick

Posted April 19, 2011 - 07:54 PM


have a buddy who is hudge into racing, and he likes the moose racing ones. he says that they are made by cp?

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