mite want to check your idle air speed contorler. maybe it gummed up.
Hey BLF, it's an 87 runner, therefore it's EFI hahaha you oldschool carburetor boys ain't got nothing on me hahahahaha
![Ack :ack:](https://board.marlincrawler.com/Smileys/marlin/ack.gif)
Let me say what hasn't been said, check your ground wires. Also check the connections at the alternator...