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760 - did tune-up, idles rough, sounds like timing might be off 700 1986

OK, I finally got my 760 running again after changing the in-tank fuel pump, spark plugs, wires, distributor cap, and rotor. Now it idles rougher than it did before and doesn't rev up as smoothly. As far as I know, I did not touch anything to screw up the timing. It sounds like it is off slightly, and on moderate throttle it sounds like it is pinging. Gas is good, it's the remainder of the gas that I sucked out to change the fuel pump (put it in my mom's Civic and my dad's van, both run fine, so it's not bad gas).

Anything I should check? I certainly don't want to drive it while it is pinging.






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