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Compression looks to be okay, 180psi per cylinder. I'm using Castrol 4T 10W 40 oil. Below is a pic of my plug on the left side... looks a bit black....

Thanks for the replies everyone! Smoke is whitish/blue (seems like oil but not sure) clears out once warmed up for the most part. I've added a photo of the intake... not sure if that looks good or bad... there was raw fuel in there but I'd imagine thats normal. I didn't notice much in the way of...

I know there have been quite a few similar threads here but my 79' tracker is smoking something fierce on the left side only. Details of the build are below if it helps, I did pull the left header pipe and found a bunch of soot, and some oily residue coming up from the exhaust valve (not from...