Messages

1

Technical / Yamaha YZ 125 2005 cylinder und and head

« on: March 05, 2013, 09:20:34 PM »

Hey Simon!
Thank you very much! This is exactly what i needed :-)
To me, I don't understand why the holes didn't match up.
I can only imagine that it has something to do with increasing pressure or something like that...
Anyway your head and cylinder looks like mine and your bike is running. So it's a good sign for me :-)

Thanks for your help!
 

2

Technical / Yamaha YZ 125 2005 cylinder und and head

« on: March 04, 2013, 08:48:16 PM »

Hi eprovenzano,

Unfortunately i have no part numbers on it. The only number on the cylinder is Y-1 1C300 and on the head F-1 1C3.
:-(

3

Technical / Yamaha YZ 125 2005 cylinder und and head

« on: March 03, 2013, 06:24:28 PM »

Hi Guys!

Can someone please help me out with this?

I have a 2005 Yamaha YZ 125 and i would like to know if the cylinder and the head fit together and do they fit on a 2005 model?
What makes me think about this, is that the cylinder and the head cooling holes didn't match together. Is this normal to increase more preasure or is it just the wrong cylinder or head for my 2005 YZ?

Cylinder and head come with the bike but were never installed since I owned it.
The bike runs with a 144 so unfortunately i can't compare the parts...


http://imageshack.us/photo/my-images/706/img2652ah.jpg/
http://imageshack.us/photo/my-images/547/img2659q.jpg/
http://imageshack.us/photo/my-images/560/img2660mb.jpg/
http://imageshack.us/photo/my-images/268/img2662az.jpg/

Thx!

David

4

Technical / Re: YZ144 2005

« on: August 02, 2011, 06:45:38 AM »

Yes i think it ran definitely hot!

5

Technical / Re: YZ144 2005

« on: August 02, 2011, 12:38:17 AM »

Thank you guys for your replys!

The cylinder returns from the workshop in about 2-3 weeks.
In the meantime i will organize some DC55 and check the head.
I'll keep you guys up to date!

Does anybody know if the "new" Athena head fit to the "old" Athena cylinder?

Greetz!

6

Technical / Re: YZ144 2005

« on: August 01, 2011, 11:24:48 AM »

Thanks for the welcome!

No i haven't used any grease for installing them. The O-Ring fell easily in the groove of the cylinder.
I have bought the bike used this year in February with the 144 kit already installed. The guy gave me a lot of o-ring with the bike. (Now i know why).
The O-ring were original packed so i think they should be ok. I never stretched them.

After changing the o-ring the last time, i saw that the coating from the cylinder comes off, right up there were the head fit the cylinder. So maybe the coating wasn't good from the cylinder.

I'm also not happy with the 2 piece head. The new generation of the 144 kit has only a 1 piece head. (no changeable dome)
I think the head doesn't fit that good to the cylinder and the compression is really high (14:1). It seems that the explosion in the head can reach the o-ring. (Maybe in combination with the bad coated cylinder) But that is just speculation.
Athena didn't gave me any feedback to my questions.

I wonder what will happen when i use Hylomar instead of the o-ring?!

greetz!

 

7

Technical / YZ144 2005

« on: August 01, 2011, 06:48:03 AM »

Hi Guys!

I have some troubles with my Bike. It`s a Yamaha YZ125 05 with a Athena 144 Kit.
In fact, the headgasket is the problem. I got the old cylinder with the two o-ring.

The problem is that the inner o-ring is always braking. I've changed the o-ring 5 times. And now i have to revise the cilynder cause the coating comes off!

Has anybody some experience with the Athena 144?

Thanks & Greets!