Might be a good idea to pull the starter and service the solenoid terminal posts and the ring. (New posts can be had on ebay for under $10.) And, using sand paper, clean up any pits on the copper contact ring** (you'll see it).
**
A WORD OF CAUTION: Should you opt to buy one of the Denso solenoid rebuild kits, which includes not only new contact terminal posts, but also the armature/plunger with a new copper contact ring as well,
compare the length of that long, skinny (push rod) that forces the starter gear to the flywheel ring gear. I bought such a kit and the (push rod) was short by approx half the width of the starter gear. Had I used it, the starter gear would only engage about half the width of the gear..not good!
(That's why I simply cleaned my old one up with sandpaper. Took maybe 20 minutes tops to sand it bright again.)
Another point worth mentioning, inspect the pins of that long connector at the back of the plenum (that connects to the digital ignition module). The pins are small, and if one is leaning a little compared to the others, you'll want to carefully straighten it or it might get folded over when reinstalling the connector. I'm NOT raising a warning flag, necessarily, but it is reasonable to pay special attention to align the connector before cranking down on the clamping bolt:
not the time to be in a hurry, or have your pet gorilla install your connections - THAT one in particular.
