How to tell if running rich or lean by looking at spark plugs?
New User
Joined: Dec 2000
Posts: 555
Likes: 0
From: STL, MO, USA
Re: How to tell if running rich or lean by looking at spark plugs? (www.s4-mtm.com)
Generally:
Black= rich, white or very light=lean (aka hot), toasty brown is often good. There are other colors that mean burning oil, coolant and the like but I forgot what they are specifically.
Black= rich, white or very light=lean (aka hot), toasty brown is often good. There are other colors that mean burning oil, coolant and the like but I forgot what they are specifically.
Thread
Thread Starter
Forum
Replies
Last Post
RTW DC2R
Acura Integra Type-R
13
Jul 22, 2003 08:30 PM
