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How can i tell if piston has been replaced?

Posted: 06:44 am Apr 03 2010
by ricpdjrr
I tried the search but could not find this question. I just bought a 04 220 and was wondering if there is any way to easily tell if it has a weisco piston. I am assuming not but just thought i would ask.

Posted: 01:59 pm Apr 03 2010
by Mr. Wibbens
See the lil oval with a W in it

Image

Posted: 06:47 pm Apr 04 2010
by ricpdjrr
Nice pic... thanks. That might save me some $ when i tear it down. I do not suppose there is any way to tell by looking through the exhaust port so i might not have to take it apart????

Posted: 07:24 pm Apr 04 2010
by Julien D
No, not really. If you just bought it, take it apart. You need to know what you're starting out with anyway. If everything is fine, it'll only set you back a top end gasket kit on re-assembly. If something is not fine, best find out now before you get the bike 40 miles out in the woods.

Posted: 08:42 pm Apr 04 2010
by Indawoods
While your in there... at least replace the rings..... :wink:

Posted: 09:01 pm Apr 05 2010
by ricpdjrr
Yup.... that all makes sense.... Thanks for the info and advice.

Posted: 02:16 pm May 05 2010
by heckler
the Kawasaki service guy I talked to told me to replace my piston (KDX220) every 6 months or so. wow. I imagine he's working to prevent my stock piston from breaking.

What's the service replacement interval on a Wiseco? Once it's worn down?

Posted: 02:19 pm May 05 2010
by Indawoods
Oh...every 5 to 6 YEARS! :wink:

Your KAW Service guy is on crack.

Posted: 03:47 pm May 05 2010
by Julien D
Nah he's just trying to pay the bills, like the rest of us.

Inda's right, with a forged piston in there's you should not have to worry about it again for a very long time.

Posted: 04:24 pm May 05 2010
by Indawoods
If your business can't be run on being truthful to your customers... you probably should close the doors.

Posted: 05:13 pm May 05 2010
by Colorado Mike
>|<>QBB<
Indawoods wrote:If your business can't be run on being truthful to your customers... you probably should close the doors.

:shock: Well, I sure wish congress would take your advice. :supz:

Posted: 05:19 pm May 05 2010
by Julien D
Agreed. It's tough times though.

Hey, while we're on the subject of pistons, and we have Wibbens great pic up there...

What do you guys think the difference will be from a piston with a little hole there for a transfer port, versus some of the newer designs that have a large window cut out of the intake side? My NOS wiseco looks exactly like Mr Wibbens, however a fresh new pro-lite has a larger cutout in that front skirt, as does a pro-x piston.

Ideas?