82 Euro S spark plug analysis needed
 

I have an 82 Euro S CIS 5spd that I have recently freshened a bit. The engine now has new rings,seals and heads redone. I am working on getting the fuel pressure gauges to look at the A/F mixture. These are the plugs after the first 50 miles(#1 plug I cleaned black soot off rim 25 miles ago). The car stumbles and has no power. I could have some bad injectors. Can anyone tell me whats going on in the cylinder head by looking at these plugs? I think it shows too rich and some cylinders not getting fuel(or spark). http://forums.pelicanparts.com/uploa...1299709210.jpg
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Dang with all that work, I thought you replaced the Injectors already. Trash those things and either get some OEM ones or get the Bosch Mercedes the Russ, Rjm65 and myself use. I didn't know you were using the old Injectors.

Replace them ASAP

Yup, black soot is richy rich

Here is pics and an explanation of each:

Reading Spark Plugs

The car had a "Viper injector service sticker" under the hood so I thought they might be okay. I'd say #5 & #6 are the bad ones cause #1 was sooty till I cleaned it off.

Replace them all at the same time. All new will all have a good spray pattern. They are about $20 each at Auto Haus AZ dot com

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take it from the others..replace those injectors....dont fall for that refreshed/overhaul hog wash...new MB are half the price of the Porsche part.

Look into using the regular copper plug too. The Platinum is great if you don't want to change them for 100k but copper is a better conductor and has a better spark.

most likely injectors but have you tested your plus leads with an ohm meter?i have a similar problem with my 81 at the minute,albeit to a much lesser extent.with mine only two out of the nine leads have a reading from them the rest i assume are open circuit (30 yrs old probably) i wonder if a bad lead giving a weak spark to your new plugs could cause it to run rich? i assume your air filter is new?have you checked fuel pump delivery pressure