Was checking the timing on my 90 B2 and I noticed that the line that I have marked on the 10btdc is jumping around. I can take the spout connector out and itll sit at 10. If I plug it in, itll go up a few degrees and then start jumping sporadically. unplug and it sets at 10. It does affect how well the engine runs unfortunatly. Any thoughts as to what this could be??
