Dutch 500AF Conversion 250KXF 2009

[kranker1450]

That pipe is soooo sexy!!!!!!!

[Jos197AF]

Satisfied 

[Foxx4Beaver]

satisfied??...a work of art like that, and all you can say is satisfied...."BOING" comes to mind 1st for me...that thing looks incredible!!

[jBernard]

AWESOME!!! thats one bad build!

so how does it ride? im hoping you can review how the pipe feels. one of my biggest fears is getting a custom one made and dumping some serious $$$ into it and it not performing like i was hoping.


Also, maybe you have some insight on this. my welder told me that doing a cone pipe like that, with Ti (may be less of an issue with SS) will experience some metal shrinkage due to welding. He does turbo kits and the like for some crazy $$ cars. So my question is after all those cuts did you end up experience any fitment issues due to metal shrinkage?

thanks

[Dutch-K5 Fan]

  Nice bike Jos. Here's a nice place to test the bike http://www.motocross-nieuwvennep.nl/index.php.
I ride the Oranje klasse Open, would be great to have another AF at the start.



Dutchie

[Jos197AF]

Exhaust fitts perfectly. No fittment issues!

I need to adjust the carb, thats the next thing to do.
First start: https://www.youtube.com/watch?v=3lvA89Ft0Vo

Dutchie, dat is een eind weg voor mij. Ga eerst een paar keer lekker trainen met het ding, en de carburateur afstellen. Heb daar nog niks aan gedaan. Heb sinds januari 2013 niet meer gereden, dus eerst lekker maar een paar rondjes rijden hier in de buurt

[jBernard]

any ride updates yet?

i'd be willing to pay for dyno time if you did back to back pulls with that pipe and a fmf gnarly or fatty.
even though the numbers in the software should be right, would really like to see some legit results in comparison to another pipe thats been used for years.

[motopunk]

i love this pipe... thatīs the look of the 2stroke-works- and prototype-gp-bikes of the middle 90īs ... only remembering greg albertijnīs 98 works rm250 ..

it looks a little bit, that you copied an existing cr500 aftermarket pipe with smart changes to fit the kx500af perfectly.. 

how is the power-delivery ?

[Jos197AF]

I Haven't ridden it on the sand yet, but did a little round through the village. What a beast, I've had a CR500 for 5 years a couple years ago, and this KX500AF 'scares' me a little bit. So much power, so unbelievable  fast! I won't be able to ride it on the track the next two weeks, but after I'm back from Bulgaria I'm going to release the beast on the sand. More pictures and video's will come. I've adjust the carb a little bit, and it runs much better now for my feeling. But I can adjust the carb finally on the track ofcourse.
I am surprised of how minimal the vibration of this bike is. I expected a lot more! Happy with that. I also made an extra headstay on the frame at the front, so I wonder how this headstay influence the vibration. My engine is captured at four points now instead of the normally three points.

[motopunk]

with other words: it is a kx500 . the strongest open class 2 stroke bike that ever was build... 
for the most modern mx-tracks it has to much power, but any 450īs that were on track with me, only saw my rear fender between race-start and first corner... 

iīm now excited for your ride report... 

[Dutch-K5 Fan]

So how does it ride Jos???


Dutchie

[dave916]

i love this pipe... thatīs the look of the 2stroke-works- and prototype-gp-bikes of the middle 90īs ... only remembering greg albertijnīs 98 works rm250 ..

it looks a little bit, that you copied an existing cr500 aftermarket pipe with smart changes to fit the kx500af perfectly.. 

how is the power-delivery ?

{it looks a little bit, that you copied an existing cr500 aftermarket pipe with smart changes to fit the kx500af perfectly..  }
 i think it took slightly more effort  than coping an existing cr500 aftermarket pipe 
amazing work Jos197AF   

[Jos197AF]

So how does it ride Jos???


Dutchie

I rode it two times now, at Berghem, the Netherlands.
Steering is fine, the power is lovely and smooth. It's a beast to ride. My arms last for about 4 rounds, I need more training after not ride a dirtbike for two years. 
In my opinion it's easier to handle than a CR5! Very fast, but much smoother! So many positive reactions from other guys at the dirtbike track!

[sandblaster]

I need to get mine done... Your just having way to much fun... 

[jBernard]

great photos and awesome build again Jos.
what gearing are you running and do you like it?
hows the powerband with that pipe software? is it like you thought it would be?