Spark plug confusion.
 
Re-Carbed
Posted 29/5/2016 8:59 PM (#722158)
Subject: Spark plug confusion.
Member

Posts: 67
2525
The spark plugs in my 1118cc are confusing. If you look at the end of the plug, one side of it is a bit sooty - an indication of too rich, but the other side is light brown which shows that my carb mixture is about right. Are all of these engines like this?
 
ginger9860
Posted 1/6/2016 12:20 PM (#722177 - in reply to #722158)
Subject: RE: Spark plug confusion.
Member

Posts: 72
2525
I dont have experience with these engines unfortunately but I have some Carb experience.

If unsure if the mixture is correct , I have used a colortune kit in the past. That would confirm if you have a good or bad mixture.

Is the Carb an SU carb?
 
Re-Carbed
Posted 2/6/2016 8:31 AM (#722185 - in reply to #722177)
Subject: RE: Spark plug confusion.
Member

Posts: 67
2525
ginger9860 - 1/6/2016 12:20 PM

I dont have experience with these engines unfortunately but I have some Carb experience.

If unsure if the mixture is correct , I have used a colortune kit in the past. That would confirm if you have a good or bad mixture.

Is the Carb an SU carb?


It is an SU HIF38 carb.