Question about the life span of a WR450


17 replies to this topic
  • Kmorris

Posted May 01, 2006 - 03:08 PM

#1

Greetings,

Basically my question is about how long a WR450 engine lives with a life of casual trial riding - nothing extreme as competition. I'm planning on a compression check after I break in my new engine (05) but I'm still wondering how long the heads, piston rings, pistons, cylinders, etc live?

I’m sure as I put miles on the bike I’m agonna figure it out but I’m still wondering.

:crazy:

Thanks!

Keith
’05 WR450F

  • Indy_WR450

Posted May 01, 2006 - 03:13 PM

#2

You should easily get 10,000. miles before thinking about a rebuild. Fantastically reliable motor! :crazy:

  • jtrone

Posted May 01, 2006 - 04:26 PM

#3

You should easily get 10,000. miles before thinking about a rebuild. Fantastically reliable motor! :crazy:


Will the cam chain last for 10,000 miles? Or does it need to be replaced sooner? :ride:

  • Indy_WR450

Posted May 01, 2006 - 05:14 PM

#4

My stock motor went 650 running hrs and 12,000. miles before having to rebuild her. Timing chain should last for trail riding. :crazy:

  • MountainMax

Posted May 01, 2006 - 05:26 PM

#5

Awesome numbers guys, are these rigs bone stock or do they have the free type mods done?

  • Matty05

Posted May 01, 2006 - 05:41 PM

#6

Awesome numbers guys, are these rigs bone stock or do they have the free type mods done?

Free mods, not so free mods..........

It doesn't really matter if stock or not, they are super bikes!
Just frequent oil changes. Every 5 engine hrs or so for me.

  • MountainMax

Posted May 01, 2006 - 05:43 PM

#7

Wow, every 5 hours? that seems a little often to me but hey if it keeps her together longer it may be worth it.

  • crooks420

Posted May 01, 2006 - 06:08 PM

#8

Every 5 hours..... thats cheap insurance. I do mine after every other ride.... filter too. Again, its just cheap insurance for a motor that barely holds just over a quart of oil.

jesse

  • MountainMax

Posted May 01, 2006 - 07:12 PM

#9

Guess I will buy a case of Yamalube 4 :crazy:

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  • wr400rider

Posted May 01, 2006 - 07:33 PM

#10

talked to a dealer abotu changing oil and they said every 500-800km depending on conditions and how hard you ride.......5 hours seems a little much, they said it's better not to change it as much as i was previously (every 200km)

  • Matty05

Posted May 01, 2006 - 07:52 PM

#11

5 engine hours! That is engine running time!
That is about 4 tanks of fuel's worth of riding.
That is like 400 to 500kms to me, or half what Yamaha recommends, which is way too long to leave your oil changes IMO. Yamaha recommend 10 hour oil changes for their YZF's.

  • Kmorris

Posted May 02, 2006 - 11:32 AM

#12

Thanks! Yeep Ha! Time to go riding! What do you all think about synthetic after break in. I'm addicted to the stuff.

Keith

  • MN_Kevin

Posted May 02, 2006 - 11:55 AM

#13

Rotella T Synthetic.

Your Oil question falls under the category of discussing religion and politics. It is ALWAYS fiercely debated...!!!

  • XRYoda

Posted May 02, 2006 - 12:42 PM

#14

You put 5wt. oil in your bike? Even if it is synthetic, that sounds a little iffy to me.

  • minion

Posted May 02, 2006 - 08:38 PM

#15

You put 5wt. oil in your bike? Even if it is synthetic, that sounds a little iffy to me.


That does sound low. I use 15w50 full synth, which seems to work very well for cold starts and hot summer days.

M.

  • Indy_WR450

Posted May 03, 2006 - 02:15 AM

#16

Wow, every 5 hours? that seems a little often to me but hey if it keeps her together longer it may be worth it.


Yeah Matty is right every weekend you need to dump the oil and put in fresh it is just a quart and it gets broken down and thins out quickly, :crazy:

  • YamahaWR450FMike

Posted May 03, 2006 - 02:53 AM

#17

my brother has near 15,000 miles on his 98 YZ400 with not one valve adjustment or any kind of motor or trans work. Amazing. It's just still about as fast as my heavly modded 2004 WR450

  • YamahaWR450FMike

Posted May 03, 2006 - 02:53 AM

#18

Wow, every 5 hours? that seems a little often to me but hey if it keeps her together longer it may be worth it.



I change my oil every 500 miles. No problems here.




 
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