Author Topic: Building of a CB500 classic racer (Read 207389 times)

Sam Green Racing · « **Reply #725 on:** December 19, 2012, 12:29:38 PM »

Rene, best wishes that all goes well and it don't spoil Christmas for you all.

Sam.

bear · « **Reply #726 on:** December 19, 2012, 01:32:55 PM »

Rene,

Glad to see you have sold the bike but i am sorry Historic Racing has lost you both.
Have a good Crissy and my best to Yrjo. I hope his recovery goes well.

Cheers,
Brian

turboguzzi · « **Reply #727 on:** December 21, 2012, 11:20:24 PM »

Hi rene

glad that you have managed to sell the bike.

a bit sad because i'm sure the road racing oriented people here miss your stories and updates already.

hope that all goes well for Yrjo, hip joints are pretty proven and safe surgery these days.

Merry Christmas to you and him!

TG

bwaller · « **Reply #728 on:** December 22, 2012, 05:42:31 AM »

All the best to you both Rene.

RAFster122s · « **Reply #729 on:** December 22, 2012, 09:05:54 PM »

Rene & Yrjo,

Glad you found a buyer for the bike, as you indicated, looked like a good deal to me...

Just caught up to the thread since your post in October (job loss and other things change your focus & energies a bit...). I am glad Yrjo is doing well but hope the hip surgery helps improve his mobility and he can regain any momentum he had...and no hospital contracted infections. They can be the worst.
Glad you have good rehab and surgery centers there...
I won't even go to the hospital here unless I won't make it if I don't I'll drive, be driven, or transported to Benson (35 miles and 1/2 the size of this town) or Tucson (70-85 miles depending on the hospital you choose). Benson only has a good clinic/ER. Hospital here has had numerous cases of MRSA related deaths of healthy people who checked in for minor surgery or short stays and didn't walk out. They are incompetent in many departments is my opinion.

Best to you both and the family.

FuZZie · « **Reply #730 on:** December 23, 2012, 02:38:12 PM »

Glad you found a buyer Rene, best wishes on Yrjo's upcoming surgery!

Howell · « **Reply #731 on:** February 11, 2013, 12:55:21 PM »

Hi everybody,

Some news to tell, Yrjo is back on his feet again after a long period.His hipjoint prothese is working well.
Still he has to be carefull with it.
His left ankle and foot are still a problem , probably they will never move like before,but remains stiff.
Both we have a new challenge in racing.
This season we are back on the track with a young guy in the dutch and german Moto3 championship on a Honda NSF250R.
Yrjo goes in for the datarecording and suspension and I go in for the engine and chassis .
It's totally different to classic racing , but we both like the challenge.

RAFster122s · « **Reply #732 on:** February 11, 2013, 01:02:27 PM »

Great news about Yrjo's hip working well. Pray that the additional movement and warmer weather to come will help improve the range of motion and reduce the stiffness. I understand those issues having the scars on my right ankle to remind me of a few past surgeries and the stiffness that comes with scar tissue.

I hope the new endeavor with the 250R is stimulating and fun and you guys enjoy the season and it has mainly positive notes.

Retro Rocket · « **Reply #733 on:** February 11, 2013, 01:02:44 PM »

Good luck in your new endeavor guys....

Sam Green Racing · « **Reply #734 on:** February 11, 2013, 01:52:58 PM »

Best of luck guys, keep mending Yrjo, it's been a long time.

Sam.

Bill/BentON Racing · « **Reply #735 on:** February 11, 2013, 04:35:22 PM »

+1 Hope all goes well,but esp the hip gets better! Your 550 was awesome!

Bill

turboguzzi · « **Reply #736 on:** February 12, 2013, 09:31:05 AM »

good to hear your'e both back!

you better become good with computers Rene because all the tuning in these motors is through a lap top

met Stefan from BRS in Stein some time ago, he said you been to his shop one day before me....

TG

Kemp · « **Reply #737 on:** February 13, 2013, 11:24:10 AM »

Glad to hear Yiro's hip is mending well. I shattered mine at Daytona in 8 places a few years ago so I can sympathize with his situation and really hope he gets back to a comfortable form. I hope you continue to publish on this forum about your Moto 3 adventures, I guarantee you will have a big following, fascinating stuff!

Howell · « **Reply #738 on:** February 14, 2013, 11:22:07 AM »

Quote from: turboguzzi on February 12, 2013, 09:31:05 AM

good to hear your'e both back!

you better become good with computers Rene because all the tuning in these motors is through a lap top

met Stefan from BRS in Stein some time ago, he said you been to his shop one day before me....

TG

Hi Yossef,

Indeed I was at Stefan's workshop , what brought you there, it's a long way from your home.
I bought a paddock start engine for the Honda NSF250R by Stefan, ver nice guy.
The computertuning and data does Yrjo , I'm just a part replacer.
Many parts of this bike has to be replaced at 2000km ohter at 4000 km, very expensive racebike.
There's a kit on it from Geo from Swiss, 52 hp at the rearwheel.
Bike was from Luca Grunwald, german moto3 champion in 2012, he rode it to a 8th place in a wet Sachsenring Moto3 GP.
On the second picture the new 15 year old rider Luuk Pruijnhttp://www.pruijnracing.nl/
Saturday we fly to Spain for a week testing at the Circuito de Almeria. http://www.circuitodealmeria.com/
First time for the rider on the bike and for us to set up the bike.
The bike is already on his way to Spain in a truck from another team.

turboguzzi · « **Reply #739 on:** February 14, 2013, 02:37:53 PM »

well, picked up some of this stuff from him

my own sort of Moto 3 project

Howell · « **Reply #740 on:** February 15, 2013, 08:20:17 AM »

Quote from: turboguzzi on February 14, 2013, 02:37:53 PM

well, picked up some of this stuff from him my own sort of Moto 3 project

They didn't had those stuff in Italy for your project , what kind of project is it ?
Let me know if you are looking for something , maybe I can help you if you can't find in in your own country.

turboguzzi · « **Reply #741 on:** February 15, 2013, 02:32:13 PM »

Well, a 1992 TZ250 frame modified for a Yamaha single and a Wim Hendrick tuned XTZ686 motor are not so common here...

, Found Stefan through motor-forum.nl

There might be some things i need, will tell you. tnxs

Howell · « **Reply #742 on:** March 17, 2013, 01:16:19 PM »

Also with new HRC stuff you can have some mechanical problems.
This is the result from testing in Spain after one session.
Costs € 3000,= to rebuild it.

RAFster122s · « **Reply #743 on:** March 17, 2013, 01:41:56 PM »

Wow! That was one expensive test session. Hope that experience is repeated for a very very long time...
3000 Euros is still a lot of money...

Even with the devalued Euro today and the dollar not so strong, XE.com 's currency converter

3,000.00 EUR   =   3,877.67 USD
Euro   ↔   US Dollar
1 EUR = 1.29256 USD   1 USD = 0.773660 EUR
Mid-market rates: 2013-03-17 20:37 UTC

Went to local motorcycle dealer to check their prices on some parts for my CX500, they were way overpriced for the two parts I inquired about.
A new Honda NC700X with top box and saddlebags was priced over $9500. The naked version of the same bike was about $8600 if I recall correctly.

The Yamaha FZ8 was less money...but not in the same class.

David

turboguzzi · « **Reply #744 on:** March 22, 2013, 01:50:53 AM »

Hei rene

nasty, but if it helps you feel better, heard that the KTM's are not exactly toyota-like reliable either....

RAFster122s · « **Reply #745 on:** March 22, 2013, 06:15:19 AM »

Were the broken valves a result of a missed shift and over-rev or , mechanical issue or unknown?

Do you have any telemetry data collection on the bike? The RC airplane telemetry packages have come way down in price since they were first introduced.

Sponsored race teams have to have funds to cover these expenses along with typical consumables, repairs, and travel expenses. Part of the racing experience. His family has been racing for years so they know some of these kind of costs. Disheartening when something like this happens on a new bike to you. (Used bike right? Not that the bike wasn't Ok before, just had some racing on it.)

RAFster122s · « **Reply #746 on:** March 22, 2013, 06:24:07 AM »

Has Yrjo's hip, leg and ankle improved over the last month?

I pray that it continues healing and mobility continue to be restored. It was 18-24 months before my Achilles tendon in my right ankle was back to full strength and new mobility and near complete range of motion. 6 months and I was walking on it but much longer for full recovery. I was 46 when it happened so, I do not heal as fast as I did when younger..

Howell · « **Reply #747 on:** March 22, 2013, 02:32:53 PM »

Quote from: RAFster122S on March 22, 2013, 06:15:19 AM

Were the broken valves a result of a missed shift and over-rev or , mechanical issue or unknown?

Do you have any telemetry data collection on the bike? The RC airplane telemetry packages have come way down in price since they were first introduced.

Sponsored race teams have to have funds to cover these expenses along with typical consumables, repairs, and travel expenses. Part of the racing experience. His family has been racing for years so they know some of these kind of costs. Disheartening when something like this happens on a new bike to you. (Used bike right? Not that the bike wasn't Ok before, just had some racing on it.)

We don't know why the valves broke , it was all new stuff
The engine is build up by a famous german tuner , Thomas Franz from Alpha Technik , is also working for the BMW SBK team.
He thinks one of the valves broke and caused the other damage.
We use a 2D datarecording system , many teams use it in GP racing.(http://2d-datarecording.com/en)
So we could see in the recorded data that the engine had run just 2900 meter and had no missed shifting or over revs.

But Thomas Franz has rebuild the engine for free !!!

We have some sponsors and at the moment a budget just enough for a raceseason without those unexpected things.
We are still trying to find some more sponsors.

About Yrjo, his hip is healed very well, but his left foot and ankle remain for always stiff.
He can walk without crutches now like a penguin.

Howell · « **Reply #748 on:** August 14, 2013, 01:50:51 PM »

Colin Stockdale's (IOMTT) Davies framed CB500 , ready for the Manx GP

We stopped with Moto3 racing , two engines complete destroyed , ran out of budget.

Also for sale a beautifull Davies CB500 , fery fast, 65 rwhp , 3 rd place Dutch Classic Championship.

RAFster122s · « **Reply #749 on:** August 15, 2013, 11:52:41 AM »

Howell,

I am sorry to hear that Yrjo's ankle and foot are going to be permanently stiff. That is upsetting.

Too bad about the Moto3 team's misfortune, two engine failures would put lots of teams out of the picture. Hopefully, another time they will restart and have better luck/fortune smiling upon them.

Those CB500s are very nice. Hope they find a buyer that will use them well and they continue to have a good race career...

David

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Author Topic: Building of a CB500 classic racer (Read 207389 times)