What do ya'll mean when you say check your piston wash??

[goodan]

Sorry for my stupidity, what do ya'll mean when you say check your piston wash? Thanks, and sorry for the stupid question!

 

[KSH]

Some reading for you.

http://www.snowestonline.com/forum/showthread.php?t=111497

From Bikeman's Site

Rich

Lean

Good

 

[slyrydr]

good pictures that correctly represent fuel richness for most sleds, unless they are super modified.....remember that a piston top reading only applies to the condition where it has been running for the last minute or so before it was shut down....on an m sled, you would have to have a bore-scope to adequately see the piston tops......which is why plug readings combined with egts are a more practical approach for most tuners...