reeldutch
Lieutenant
- Joined
- Feb 2, 2004
- Messages
- 1,340
i almost completed the 10 hr break in on a rebuild 1990 115 v4.<br />the sparkplugs on the bottem have spots of carbon on the insulator and look a little darker than the top plugs wich look great.(light than coller)<br />am i running lean?? or to rich.<br />before the rebuild i suspected the lower carb for running lean and burning the pistons.<br />on top of that the former owner took the tstats out to cool a hot running moter.<br />this caused the problems in the moter.<br />now i dont want to have a repeat of this problem.<br />i realy cleaned the carbs out good and replaced the needle and seat and float. and i leveled it.<br />the moter runs fine i'm just making shore things are fine before i switch over to 50:1.<br />the plugs are ql77jc4.<br />the moter runs nice and warm.<br />i am a baker so i hold my finger on it for about6 sec.<br /><br />so carbon spots on insulater means???<br /><br /><br />thanks reeldutch
