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Offline Mapog

Honda 450 valves -- is dit steeds n probleem?
« on: September 22, 2012, 04:37:13 pm »
Ek dink daaraan om een van die 450's aan te skaf en ek hou nogal van die WR's, maar hulle is n bietjie duur teenoor die Honda 450X. Ek het al baie gelees en gehoor van die valve probleme op die Hondas. Is die probleem al opgelos deur Honda en as n man 2de hands sou koop en watter jare moet vermy word.
Dankie baie
 

Offline sidetrack

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #1 on: September 22, 2012, 07:31:36 pm »
Nie seker of dit vernader is met die modelle nie maar n stel stainless steel valves sal die antwoord wees.
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Offline dirtWarp

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #2 on: September 22, 2012, 07:41:18 pm »
Het gehoor dat die 450X se con-rod die neiging het om te flex op die crank.
Daar word plek gemaak vir ekstra flywheel gewig en dus is die gedeelte waar con-rod aan crank verbind, dunner as op 450R

Bel vir Conrad by offroad cycles, hy het al 'n paar in gekry met die issue.. hy diagnoseer hom sommer met die oor.
 

Offline dirtWarp

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #3 on: September 22, 2012, 08:04:26 pm »
Lyk my Conrad praat deur sy hol   ;D
Kyk hier:
 

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #4 on: September 22, 2012, 08:36:08 pm »
Race bikes don't count, they get fixed every evening, and the general public is none the wiser. If it wins, we goona but it!

But, out of interest, why is a titanium valve worse that a stainless valve?

I've also 'heard' that they overheat quicker than others. I wanted a stronger radiator cap for my 450 kawa but they'd sold all the stock to honda because of this. Honda denied this but they had the 'kawa' caps in stock, kawa didn't.

All hearsay, of course, but would make me think twice before buying the honda
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Offline sidetrack

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #5 on: September 22, 2012, 10:40:14 pm »
Honda's always standard with legend tax, the XR's and even the two stroke CR's still sell for alot of money. The CRF's however are cheap so that might tell you something .... I rode a 450X once and that thing was strong ! I'm sure for the weekend warrior that looks after his bike the CRF should do ok.

« Last Edit: September 22, 2012, 10:43:36 pm by sidetrack »
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Offline dirtWarp

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #6 on: September 22, 2012, 11:12:36 pm »
Race bikes don't count, they get fixed every evening, and the general public is none the wiser. If it wins, we goona but it!

But, out of interest, why is a titanium valve worse that a stainless valve?

I've also 'heard' that they overheat quicker than others. I wanted a stronger radiator cap for my 450 kawa but they'd sold all the stock to honda because of this. Honda denied this but they had the 'kawa' caps in stock, kawa didn't.

All hearsay, of course, but would make me think twice before buying the honda
The 450X I posted is used to do a 1600KM dirt race in one go. There is no "getting fixed every evening" trick
Take note that they actually use most of the standard parts for the JCR race bike, that is really good!

My husaberg and ktm 525 used to overheat too, says nothing about the engine built quality.
Add a fan or ride faster.

I'm actually starting to convince myself into a 450X here!
 

Offline sidetrack

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #7 on: September 22, 2012, 11:16:41 pm »
Race bikes don't count, they get fixed every evening, and the general public is none the wiser. If it wins, we goona but it!

But, out of interest, why is a titanium valve worse that a stainless valve?

I've also 'heard' that they overheat quicker than others. I wanted a stronger radiator cap for my 450 kawa but they'd sold all the stock to honda because of this. Honda denied this but they had the 'kawa' caps in stock, kawa didn't.

All hearsay, of course, but would make me think twice before buying the honda
The 450X I posted is used to do a 1600KM dirt race in one go. There is no "getting fixed every evening" trick
Take note that they actually use most of the standard parts for the JCR race bike, that is really good!

My husaberg and ktm 525 used to overheat too, says nothing about the engine built quality.
Add a fan or ride faster.

I'm actually starting to convince myself into a 450X here!
And cheap, R59k for a 2012 X from Cayenne if you believe their website
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Offline dirtWarp

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #8 on: September 22, 2012, 11:21:47 pm »
And cheap, R59k for a 2012 X from Cayenne if you believe their website
Hulle is common soos grond. Behoort 'n nice X te kry vir 25K

Check, 10ure op hierdie '06 X.
R28K
« Last Edit: September 22, 2012, 11:24:48 pm by dirtWarp »
 

Offline sidetrack

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #9 on: September 22, 2012, 11:46:52 pm »
And cheap, R59k for a 2012 X from Cayenne if you believe their website
Hulle is common soos grond. Behoort 'n nice X te kry vir 25K

Check, 10ure op hierdie '06 X.
R28K

450X with black plastics and powdercoating, something along the lines of this CR hmmmm  :drif:

« Last Edit: September 22, 2012, 11:49:10 pm by sidetrack »
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Offline dirtWarp

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #10 on: September 22, 2012, 11:53:03 pm »
Nice.
 ;D
« Last Edit: September 22, 2012, 11:54:31 pm by dirtWarp »
 

Offline Scribble

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #11 on: September 23, 2012, 09:33:24 am »
That cr gives me a funny feeling in my pants  :drif:
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Offline Mapog

Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #12 on: September 23, 2012, 07:00:13 pm »
Sien, dit is daai prys van R59 wat vir my so aantreklik is. WR's gaan vir rondom 80.
 

Offline sidetrack

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #13 on: September 23, 2012, 08:00:25 pm »
Sien, dit is daai prys van R59 wat vir my so aantreklik is. WR's gaan vir rondom 80.
Ek sien die CRF's het ook wynig verander van die eerste X model af, sekerlik as daai probleme was sou Honda dit aangespreek het. Ek dink al wat verander het is fuel injection in die nuutste modelle. Die outjie lyk heel skaflik.

« Last Edit: September 23, 2012, 08:04:00 pm by sidetrack »
Little by little, one travels far
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Offline Dux

Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #14 on: September 24, 2012, 05:38:09 pm »
I have had an 06 and an 09 in recently with valve issues , the problem seems to surface more with bikes that aren't ridden very hard , as in lots of shortshifting and lugging the bike , ring its neck and they seem to be good .
At least they aren't as bad as the 250X , a mates new bike went through its first set of valves over the first weekend of riding , in its first 4 months it had 3 new sets of valves , so guess what got sold , although that took ages to happen .
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Offline Hoofseun

Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #15 on: September 26, 2012, 06:05:44 pm »
On the question of the valves being a problem, I do not know, I did the maintenance required and the bike has not let me down once!  Considering a second race season on the same bike next year depending on options.

Mokkel and I have been racing and training on the same bikes this year.  I only use my bike for training on MX tracks for a few hours at a time and then offroad racing.  Mokkel uses his for enduro training, MX track training and then off-road racing.

The bikes work hard and deliver, Mokkel on 2011 CRF250X and me on 2011 CRF450X.  Half way through the season we both replaced intake valves with stainless steel valves and stiffer valve springs.  Another friend of us is also actively racing, 2009 model.  Bike on off-road circuit for last three years.  Have also done intake valves.

These three bikes are working hard when they work.  We are running the bikes stock standard except for (a) sprocket ratio changes, (b) jetting for high speeds, and (c) personal setup modifications.  I trust the bike as it delivers.  All bikes are regularly serviced and maintained after each race and after each practice.  No hassles.

I am happy with the bike and the service we get here in Pretoria.  We use two well-known guys in the industry, and they both know the Honda's in and out.  Conrad (Runner) did most of the initial setup and the bikes deliver.

The difference between the 2011 and 2012 is only BNG.  We have had no news around the 2013 X models as yet.  The R has been radically changed.

Get a 450X or any other bike for that matter and come race with us...

For any bike, maintain the bike (basic pre- and post ride inspection, services and check valve clearances regularly)

"You are never to old to learn something new"


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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #16 on: October 05, 2012, 01:57:44 pm »
Race bikes don't count, they get fixed every evening, and the general public is none the wiser. If it wins, we goona but it!

But, out of interest, why is a titanium valve worse that a stainless valve?

I've also 'heard' that they overheat quicker than others. I wanted a stronger radiator cap for my 450 kawa but they'd sold all the stock to honda because of this. Honda denied this but they had the 'kawa' caps in stock, kawa didn't.

All hearsay, of course, but would make me think twice before buying the honda
The 450X I posted is used to do a 1600KM dirt race in one go. There is no "getting fixed every evening" trick
Take note that they actually use most of the standard parts for the JCR race bike, that is really good!

My husaberg and ktm 525 used to overheat too, says nothing about the engine built quality.
Add a fan or ride faster.

I'm actually starting to convince myself into a 450X here!
Yip Jhonny Campbell Racing is dominating the BAJA 1000 on Honda's ,first as rider and now manager team owner .since 1997 .
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Offline Kenisis

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #17 on: October 20, 2012, 08:49:20 am »
No problem with my 2007, Had close on 500 hours before i redid the Head. No issues at all!

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Offline Odd Dog

Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #18 on: October 20, 2012, 09:15:46 am »
Ek dink daaraan om een van die 450's aan te skaf en ek hou nogal van die WR's, maar hulle is n bietjie duur teenoor die Honda 450X. Ek het al baie gelees en gehoor van die valve probleme op die Hondas. Is die probleem al opgelos deur Honda en as n man 2de hands sou koop en watter jare moet vermy word.
Dankie baie

Here's your answer - have you ever seen a post subject titled "Yamaha 450 valves -- is dit steeds n probleem?" ?
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Offline dirtWarp

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Re: Honda 450 valves -- is dit steeds n probleem?
« Reply #19 on: November 20, 2012, 10:21:08 am »
Ek dink daaraan om een van die 450's aan te skaf en ek hou nogal van die WR's, maar hulle is n bietjie duur teenoor die Honda 450X. Ek het al baie gelees en gehoor van die valve probleme op die Hondas. Is die probleem al opgelos deur Honda en as n man 2de hands sou koop en watter jare moet vermy word.
Dankie baie

Here's your answer - have you ever seen a post subject titled "Yamaha 450 valves -- is dit steeds n probleem?" ?
Soos daai threads met tietel: "is alle BMW riders poepolle"?
 ;D