Suprised at sight of piston

K

KDXFreestyle

Damn Yankees

Member

Nov 19, 2002

645

0

• Feb 14, 2005

• #1

hey guys, I just pulled off my cylinder and stuff to be doing my 2nd top end in my 2003 KDX200. And what i am curious about is why there could be Brown underneath the rings on the piston? This top end is about a year old. Was is just overdue?

Thanks

 

C

cyber104

Member

Jan 16, 2005

26

0

• Feb 15, 2005

• #2

That's completely normal. That piston gets hot enough to trap deposits underneath the rings and 'cook' them to a nice brown color. Synthetic oils brown up less than conventional ones. I wouldn't worry about it. Scrape out the deposits if possible but normally they are more like stains.

Hope this helps,
Chris

 

K

KDXFreestyle

Damn Yankees

Member

Nov 19, 2002

645

0

• Feb 15, 2005

• Thread starter
• #3

yeha it looks like a couple of tan stains... thanks for the reply

 

B

Braahp

~SPONSOR~

Jan 20, 2001

641

0

• Feb 15, 2005

• #4

KDXFreestyle said:

2nd top end in my 2003 KDX200.

Click to expand...

Wow......mine is a 2001 and I have yet to do a top end. Compression is still above spec. Runs like the day i got it. Ahhh......just another reason the KDX is the perfect off road bike.

 

B

bigpa

Member

Nov 24, 2003

60

0

• Feb 15, 2005

• #5

Hey, Freestyle, still have that CR framed KDX? How do you like it?