Carbon on the pistons
#3
Restricted User
iTrader: (9)
Join Date: Sep 2002
Location: Sierra Vista, AZ
Posts: 7,603
Likes: 0
Received 0 Likes
on
0 Posts
Yes, clean them off, and clean out any residue b/w the piston and cylinder when done. Carbon will cause hot spots. Dont use a harsh abrasive, or wire brush that can scratch the cylinder if you slip, use something like a green scrubbie pad with light pressure and care.