Nice close-up SubSailor, I couldn't get quite that close. But mine look pretty thrashed compared to yours. I remember pulling them out and looking early on in my project. I thought they looked ok at the time and put them back in. I could have been wrong cause I really don't know how to read plugs. Aside from the obvious clean or dirty. What do these plugs tell you? too rich? (Yosh pipes, yosh map from PC, and PCIIIr)
I think I found the problem with my stall/hard start. Fuel pressure reg. Makes sense to me cause it acted like it was flooded on the hard starts. If I would slowly roll the throttle open it would catch and start. Gas was leaking into the small line, apparently draining into the front throttle body? At idle thats already to low (1000-1100).
Is the small line on the FPR a vacuum, or a way to evacuate gas to the throttlebody in the event of leakage?
Airfilters are at the end of their life too. I'll replace those as well.
Thanks to recent posts about testing the fpr, I knew just how to do that. A big thanks to the regulars on this forum for all the great tips and information. Make's things go much faster.
Pictures: FPR, front cyl. sparkplug, rear cyl. sparkplug