Thread: Read my plugs please

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No, unfortunately I don't have access to an A/F ratio meter. The engine only has 1300 miles on it too, fwiw (well, 1300 post initial break in miles, so more like 1800 miles after the first bed-in running - no I'm not only doing a 500 mile break-in, but the first 500 miles were done with different oil and some mixture and timing differences) . I know before the engine went in, some dunderhead had blocked off the warm up regulator (which also does high throttle enrichment)...what I don't know is if someone other than me replaced it or not (I thought someone had, then that person indicated that he hadn't...so now I have to figure out if someone else did). I could just adjust the main mixture screw at the top, but my understanding is that on Bosch CIS, that is mostly just for idle mixture, and given the one black ring I'd say idle mixture is good where it is.

I'll take a better shot tomorrow.