The infamous M piston failure

Sling-it · May 13, 2015

I got my new endoscope in the mail today, and look what I think I may have found!

The bottom of the exhaust port is on the lower right. Both pics are from the clutch side.

09 M1000 1700+ miles

kiliki · May 13, 2015

I think your endoscope is shoved to far up your exhaust port cuz I can see Cheet with the pics.
rule of thumb with the m1k pull them at 2k miles and put them in the trash.
they like to crack from the bottom edges in the arch sections of the intake side.

Sling-it · May 13, 2015

Maybe this will help. The silver is the piston, black is the port. Arrow is direction of piston travel, up is marked. Sorry, scope is what it is. Close is all that works.

The circular mark left of the arrow is what I think is a crack near the bottom of the skirt

Hardass · May 13, 2015

If it is good find you just saved your self a bunch of money

WyoBoy1000 · Jun 4, 2015

What mods are you running, that chit only happens from running lean/hot. The m1000 runs way better and last longer with more fuel.

05900 · Jun 4, 2015

kiliki said:
I think your endoscope is shoved to far up your exhaust port cuz I can see Cheet with the pics.
rule of thumb with the m1k pull them at 2k miles and put them in the trash.
they like to crack from the bottom edges in the arch sections of the intake side.

Top end time.

odysse · Aug 28, 2015

Think its time to change my pistons Before this season , its oem piston the way to go ? spi ? wiseco ?

Hardass · Aug 28, 2015

JFro50 · Aug 29, 2015

Oem or Wossner.

Search

The infamous M piston failure

Sling-it

Free Member

kiliki

Well-known member

Sling-it

Free Member

Hardass

Well-known member

WyoBoy1000

Well-known member

05900

Embrace the BRAAAAAAP!

odysse

New member

Hardass

Well-known member

JFro50

Well-known member

Similar threads