kx450 2012 problems

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Stompin

Vital MX member Stompin
32887 Stompin /images/default/avatar/c50.png http://www.vitalmx.com/community/Stompin,32887/all 03/05/12 6 14

Posts: 20

Joined: 3/5/2012

Location: reno, NV USA

7/7/2012 3:20 PM

every 2-3 races have to replace head gasket , what a piece of shit.
tried resurfacing head
engine ice
1.6 cap
frustrating after coming from yamaha..

tapkawiman

Vital MX member tapkawiman
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Posts: 167

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Location: Neosho, MO USA

7/7/2012 3:59 PM

VitalMX>Forum>Race Shop(Since you didnt learn on your last post)

Everybody wants to be number #1.........but ah.......when it comes time to doing it and making it happen they dont really really want it....
Ricky Carmichael

gutter shield 29

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Location: Shawnee Mission, KS USA

7/7/2012 4:39 PM

I have one too, I feel your pain. I havent had any trouble yet with my head gasket although I have a friend having that same problem with his.
I have been having prob;ems with my oil drain plugs leaking. I had to re-tap it after changing the oil after only 3 times.
I love riding the bike but I don't think it's built as good as my Yamaha's.

Stompin

Vital MX member Stompin
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Location: reno, NV USA

7/7/2012 4:41 PM

tapkawiman wrote:

VitalMX>Forum>Race Shop(Since you didnt learn on your last post)

why is it that of a deal

ehr400

Vital MX member ehr400
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Posts: 2057

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Location: Dundee, MI USA

7/7/2012 5:53 PM

I know 2 guys whose cranks went out at 18.7 hours and 23.2 hours. Vet B riders too.

TeamGrnRacer99

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Posts: 493

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Location: Bethlehem, PA USA

7/7/2012 6:02 PM

no issues with mine, not a ton of hrs. on it since i only get out Sundays to race. no complaints from the people I've sold them too either. best 450 I've ever ridden

Officially the Slowest Team Green Support Rider in History 5 years running

85,87,88 KX125
03.05 KX250
04 KX250F
06,07,08,09,10,11,12,13 KX450
05 KLX110
07 ZX6
09 Monster ZX6
04 Aprilia RS Fiddy

scott_nz

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Location: NZL

7/7/2012 6:06 PM

TeamGrnRacer99 wrote:

no issues with mine, not a ton of hrs. on it since i only get out Sundays to race. no complaints from the people I've sold them too either. best 450 I've ever ridden

i race mine, and have sold a heap of them, and never had an issue with an 2012 or any of the earlier ones as well,

crashnburn11

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Joined: 10/19/2010

Location: CA, USA

7/7/2012 6:17 PM

Love mine, no issues

xnationalwrench

Vital MX member xnationalwrench
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Location: Champaign, IL USA

7/7/2012 6:46 PM
Edited Date/Time: 7/7/2012 9:14 PM

Just a couple of questions, is the leak located at the same place everytime? You said you resurfaced the head? Did you you check the mating surface on the cylinder itself? Have you replaced the locating dowels between the head and cylinder? Then you might go to a 2.0 cap.

machine

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Location: Collettsville, NC USA

7/7/2012 6:48 PM

No problems here, it's a great bike so far.

.

centralcalmx

Vital MX member centralcalmx
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Joined: 4/1/2008

Location: Madera, CA USA

7/7/2012 7:34 PM

No issues but the rider with mine.

Info for Racing in Central California
www.mxpics.net
OTHG 696s

Stompin

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Location: reno, NV USA

7/8/2012 7:21 AM

xnationalwrench wrote:

Just a couple of questions, is the leak located at the same place everytime? You said you resurfaced the head? Did you you check the mating surface on the cylinder itself? Have you replaced the locating dowels between the head and cylinder? Then you might go to a 2.0 cap.

ya resurfaced head . put new cylinder on also. theirs actually no evidence of water leakage other than low antifreeze in radiator
after each ride . i will try the dowels next time also

TerryK

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7/8/2012 7:24 AM

xnationalwrench wrote:

Just a couple of questions, is the leak located at the same place everytime? You said you resurfaced the head? Did you you check the mating surface on the cylinder itself? Have you replaced the locating dowels between the head and cylinder? Then you might go to a 2.0 cap.

Stompin wrote:

ya resurfaced head . put new cylinder on also. theirs actually no evidence of water leakage other than low antifreeze in radiator
after each ride . i will try the dowels next time also

Lol, it's not a leaky head gasket, it's just puking out of the overflow. You need a new rad cap. Shame you wasted all that time and money on parts.



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