KX Riders

Maintenance & Technical => KX250 / KX125 => Topic started by: chipped tooth on April 24, 2014, 02:18:49 PM

Title: Wiseco pistons getting cheaper????
Post by: chipped tooth on April 24, 2014, 02:18:49 PM

Just received the 68.50mm for my 93 and comparing the old piston from my friends 93 which is also a 68.50 mm it is two different designs, the new one which looks a lot cheaper and poorly made. I'll post some pictures of the two and I also weighed the two.
(http://s28.postimg.org/5kg9kurvh/IMAG0186.jpg[img]
[img]http://s29.postimg.org/zfere8nl3/IMAG0187.jpg)
(http://s8.postimg.org/atztneobp/IMAG0189.jpg)
(http://s24.postimg.org/pptumkxr9/IMAG0190.jpg)
(http://s23.postimg.org/fo83x89hn/IMAG0196.jpg)
(http://s28.postimg.org/aulovit25/IMAG0201.jpg)
(http://s9.postimg.org/sdnhl5imn/IMAG0202.jpg)
(http://s30.postimg.org/6h2s29u8x/IMAG0200.jpg)

Title: Re: Wiseco pistons getting cheaper????
Post by: sandblaster on April 24, 2014, 04:43:53 PM

Wouldn't doubt that they have to cut back.
Less machine operations saves money.
With all the competition in the piston market it's gotta be tough.

Title: Re: Wiseco pistons getting cheaper????
Post by: chipped tooth on April 26, 2014, 07:59:50 AM

I agree, I have been using Wiseco for as long as I can remember, always top quality. looks like I'm gonna have to start checking out the other manufacturers......

Any suggestions?
I have used the cheap cast pistons in lower powerd sleds with excellent results.
But I don't feel comfortable using the cheap stuff in high strung applications.

 

Title: Re: Wiseco pistons getting cheaper????
Post by: sandblaster on April 26, 2014, 08:02:13 AM

Look long and hard at Wossner...
They are of excellent quality.

Title: Re: Wiseco pistons getting cheaper????
Post by: chipped tooth on April 27, 2014, 10:38:51 AM

I will have to go snoop around the website..... Lol

Title: Re: Wiseco pistons getting cheaper????
Post by: staffylad on May 18, 2014, 05:53:53 AM

mebees for yous in America but England wer taxed for going for a s**t! wats the best wossener or wiseco I like the fact wiseco are shiney  :roll:

Title: Re: Wiseco pistons getting cheaper????
Post by: Goat on May 18, 2014, 08:32:18 AM

ProX seems to be a decent piston. I have been getting a lot of customers with sleds that brought me ProX pistons. Haven't heard anything bad about them yet. I personally have never used them but quality seems pretty good.

I have also never used a wossner but have installed them. Outstanding quality and no complaints.

Wiseco has always been my go to company and only had 1 issue that was resolved quickly and efficiently over the 20 years I've been dealing with them.

Title: Re: Wiseco pistons getting cheaper????
Post by: alward25 on May 18, 2014, 08:40:56 AM

Pro-x trashed my last 500.  It let a ring guide pin loose and it rattled around in my engine.  Needless to say, not going to run one, I did not put it in.  It was in my bike when I got it and it did not have a lot of time on it.  Just a cheap cast piston.

Title: Re: Wiseco pistons getting cheaper????
Post by: Goat on May 19, 2014, 07:25:29 AM

Quote from: alward25 on May 18, 2014, 08:40:56 AM

Pro-x trashed my last 500.  It let a ring guide pin loose and it rattled around in my engine.  Needless to say, not going to run one, I did not put it in.  It was in my bike when I got it and it did not have a lot of time on it.  Just a cheap cast piston.

Good to know. I've only installed them in sleds which don't vibrate as much as the 500 so I'd scratch ProX off the list.

Title: Re: Wiseco pistons getting cheaper????
Post by: KevinTwoStk on May 28, 2014, 05:30:51 PM

I'm using a Pro-X in my KX125. I've got over forty hours on the current piston with zero trouble. I tore down the top end this weekend to check it out, and everything was within spec. I replaced the ring this time, and I plan to replace the piston, ring, pin, and wrist pin bearing at the next teardown.