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Yamaha WR450F (2009)


Owner: dawataboy
Added on December 04, 2016
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* * * * * 7 votes

What did you do to your WR today?

Yamaha WR400F Yamaha WR450F


4430 replies to this topic
  • Thommo_400f

    TT Silver Member

546 posts
Location: Australia
Garage View Garage

Posted November 15, 2012 - 02:59 AM


Ordered a "EKP" needle from the USA for $10.
Hope it works :)
Here in Australia they are $51 !!!!!!! :/
All jetting is a rip off here.
Makes tuning really difficult.

  • MANIAC998
4,952 posts
Location: New York
Garage View Garage

Posted November 15, 2012 - 06:43 PM


Just did zibbit's "Oil system upgrade" prior to leaving for Baja. Do a search on this, as it is pure genius, and is a wonderful mod to keep these WR's running forever!!!

  • stev0

    TT Bronze Member

407 posts
Location: South Africa

Posted November 15, 2012 - 10:54 PM


Hey Maniac,

more info on that upgrade please.

  • MANIAC998
4,952 posts
Location: New York
Garage View Garage

Posted November 16, 2012 - 04:16 AM


It is where you basically add an oil jet from the Yamaha quad (YFZ450) into your clutch cover and it squirts oil up and underneath the piston. So oil hits the wrist pin bearing, and then falls down into the crank lubricating the crank connecting rod bearings. In my eyes, this is a must do!

  • still2smokin
3,230 posts
Location: California
Garage View Garage

Posted November 16, 2012 - 03:59 PM


Went to my local spot this weekend and didnt even make it 2 miles..........
Posted Image
Started back firing when on the gas, and then would only idle, limped it back , pulled the plug.
Posted Image
what the crap !!! I figure the missfiring caused the lean look of the plug, cleaned it up a bit and put it back in.
Started right up and ran great ......for about 300ft.... then POP POP POP !!!!! and it died and wouldn't refire at all.

Back at home I tested the spark and it seemed very erratic so it was time to whip out the manual and multimeter.

Everything was fine except the primary side of the coil pack which read .30 ohms and it should read .08 to .10 ohms.
Coughed up $114 to my local stealership and it might be here by thanksgiving :(

I hope thats the actual issue

So glad this didnt happen at the places I normally go. It would have sucked bad had I been 20+ miles away from the truck.

Edited by still2smokin, November 16, 2012 - 04:08 PM.


  • n16ht5

    TT Addict

3,342 posts
Location: Washington

Posted November 16, 2012 - 08:35 PM


bummer. I had problems too..

went to check my valves.. accidentally cut the big rubber gasket on the valve cover.. such a tight fit to get it out!

valves are (way) out of speck, so need to go to stealership to get shims and order a gasket. ugh.

Think I'll get a hotcam while I'm waiting.

Edited by n16ht5, November 16, 2012 - 09:28 PM.


  • wrwest

    TT Bronze Member

169 posts
Location: South Africa

Posted November 23, 2012 - 10:37 PM


It is where you basically add an oil jet from the Yamaha quad (YFZ450) into your clutch cover and it squirts oil up and underneath the piston. So oil hits the wrist pin bearing, and then falls down into the crank lubricating the crank connecting rod bearings. In my eyes, this is a must do!

pics and more info pls

  • n16ht5

    TT Addict

3,342 posts
Location: Washington

Posted November 23, 2012 - 10:55 PM


pics and more info pls


I thought 07-up already had oil squirt on the wristpin?

Keyed ignition!
Posted Image

this: $15 off ebay. It will help keep the "honest people honest" if you know what I mean. Good for the times when I don't have my disc brake lock on me
http://www.ebay.com/...f083dba&vxp=mtr

It has 4 wires.. green and black w/ white strip are not used.
The other two are used with the brown and solid pink wire.
Posted Image

Posted Image

Zip tied to the speedo box mount. nice and snug
Posted Image

switched on
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Edited by n16ht5, November 23, 2012 - 10:57 PM.


  • still2smokin
3,230 posts
Location: California
Garage View Garage

Posted November 24, 2012 - 06:11 PM


Got my new coil and it gives a way better spark and then I found out why...........
Posted Image

This is the connector on my old coil. The pin on the left is corroded away at the back. !?!?


Also got around to a couple long overdue tasks,

Extracted 2 broken bolts that the PO left frozen in the frame that hold my left radiator on .
Dispite all the red loctie that went shockingly well, usually for me it gets pretty ugly.

And finally installed the TT AIS removal kit. I am really sick of the decel poping .

  • still2smokin
3,230 posts
Location: California
Garage View Garage

Posted November 27, 2012 - 11:01 PM


I yelled at it..... it went sumpthin like this



BRAAAAPPPP!!! BRAAAAAPPP!!!!! BRAAAAAAAAAAAAAAAAAAAAAAAAAAAP !!!!!!


Sometimes I find myself sayin it a work , BRAAAAAAAPP!!!!!

Some people look at ya funny , but some people know just what your saying......

I need to get out and ride...

Edited by still2smokin, November 27, 2012 - 11:11 PM.


  • mslow

    TT Bronze Member

334 posts
Location: Pennsylvania

Posted November 28, 2012 - 05:11 AM


I upgraded my wr450 last weekend...it was way too clean after being rebuilt...



Posted Image

Edited by msanna, November 28, 2012 - 05:15 AM.

  • n16ht5, firejosh and revyrider like this
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  • GASKICKER

    TT Bronze Member

154 posts
Location: Utah

Posted November 29, 2012 - 12:30 PM


I bought my first dirt bike in 19 yrs - a super nice 2007 WR450 with a few go fast goodies. My previous bike, that I sold back in Oct of 1993, was a Yamaha XT350. I cannot believe how hard this WR pulls - so far Ive been trying to figure out what all has been done to it, as the previous owner didnt seem to know much; he said he bought it 2 yrs ago just like you see it. This is what I know has been done through my reading on here, looking through the TT store and then inspecting the bike: moose radiator supports; FMF megabomb Ti header; LEXX MX slip on; AIS removal kit; grey wire cut; TwinAir airfilter; Ready Racing oil filter cover; Race Tech rear spring SRSP 6228 5.8kg ; Race Tech Front springs; Alum chain case guard; moose chain guide; MSR hand guards & deflectors; aluminum skid plate

I traded a 2000 Polaris Xplorer with winch and plow for it - I think I came out ok. :)

Is there anyway to tell if any carb work has been done to it, without tearing the card down?

Edited by GASKICKER, December 04, 2012 - 01:39 PM.


  • revyrider

    TT Member

96 posts
Location: British Columbia

Posted November 29, 2012 - 04:00 PM


Waaay more fun than than a Polaris!Have fun on your new bike!!

  • still2smokin
3,230 posts
Location: California
Garage View Garage

Posted December 01, 2012 - 08:57 PM


Posted Image
Dropped the front wheel off at the local shop ( Motowrx, Livermore CA ) for a front wheel truing,
and a desperatly needed 100/90/21 mx 51 front tire that the wife hopfully won't notice.... :devil: :devil: .


What kind of dick buys himself a new front tire before X-mas???? ........This guy !!!!

That"s actully showing restraint, I need/want new chain & sprockets, numbers plates & decals (need my numbers on it ----619d)
1/2 in offset pegs, black excel rims, rad guards, YZF rear fender and/or a Rekluse............ just in-case santa is listening......

Edited by still2smokin, December 01, 2012 - 09:32 PM.

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  • n16ht5

    TT Addict

3,342 posts
Location: Washington

Posted December 02, 2012 - 08:01 AM


retard your ex cam whilebyour at it

  • n16ht5

    TT Addict

3,342 posts
Location: Washington

Posted December 02, 2012 - 08:18 PM


Posted Image

Posted Image
Posted Image
  • still2smokin and revyrider like this
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  • BoiseBee

    TT Bronze Member

177 posts
Location: Idaho
Garage View Garage

Posted December 02, 2012 - 08:48 PM


Bad Ass shots n16ht5!! Looks like a beautiful part of Washington... which mine is that?
Also, what year is the bike next to your WR?

  • n16ht5

    TT Addict

3,342 posts
Location: Washington

Posted December 02, 2012 - 09:44 PM


thanks.. it's a mine near Darrington, WA.. not sure of the name. We had to cut quite a few trees off the trail to get there.
2001 XT225

couple more
Posted Image
Posted Image
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  • still2smokin
3,230 posts
Location: California
Garage View Garage

Posted December 02, 2012 - 10:11 PM


retard your ex cam whilebyour at it


I will but I kinda feel like I should fix the jetting issue I have first. Which is a just barly open throttle cut out that ,
thanks to Krannie I beleive is a pilot circut adjustment issue. Once its running perfect I am retarding the
exhaust cam.

What tip are you running on the Lexx slip on ?
I thought the " quet tip " one it came with was good
and then I took it out and used the "race tip"it also came with
and the power increase is hard to give up. Its just loud as hell
but sounds badass though.

Thinkin about trying the 2 other tips that RMATVMC sells for it.

Also what what jetting changes did you have to make when retarding the ex cam ?

Edited by still2smokin, December 02, 2012 - 10:13 PM.


  • n16ht5

    TT Addict

3,342 posts
Location: Washington

Posted December 03, 2012 - 07:29 AM


what is your jetting?? Krannie is a pretty resourceful dude. I havent rejetted yet.. plug still lookspretty good.. might bump the main up to a 168. I use the stock Lexx tip.. I tied the others they sold, found the stock quiet one is the best all around. power isnt worth the noise





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