[DonDavis]

Well, it’s been about a month since I got my 911 and I thought I would share what I’ve been up to. Upon delivery, it had some issues and would not start. Got a bit delayed on working on it because of family stuff so the first 2 weeks was a period of admiring and sitting in it going ‘VRROOM VRROOM’. I'll put up some pics this weekend.

The batteries were bad so I went with the Odyssey 925 single setup. It’s in the drivers side battery box and fits great with plenty of room. I need to put something around it to snug it up.
Rear brakes were stuck so I rebuilt all 4 calipers. I pulled both rear off then could not get the pucks out so I had to put them back on and use the pedal to push them out a little. I wasn’t sure how far they would come out before I had a big mess of brake fluid so I went slow and careful. Worked great but still had a devil of a time getting them the rest of the way out. Afterwards, they cleaned up nicely. Fronts were in much better condition and went smoothly. I ended up flushing the system with normal brake fluid, draining, and then proceeding with ATE Super blue. Motive Power bleeder and I was done in no time flat. Very easy to use. Just be sure and keep and eye on the reservoir. It’s easy to forget that part when all you have to do is turn the bleed screw. Brakes are a little spongy and will do a final bleed on Saturday using pedal method.

Now for the ‘fun’ part…. The MFI needed tweaking. I have Check, Measure, Adjust and have read through it a few times. The problem is I don’t have a CO meter or timing light. I know, I know. I will get those soon but couldn’t wait so I make a few tweaks on the fly. Before doing any adjustments at all, I started it and it would not idle for crap. Popping out of the intakes and bucking and snorting. Over 2k rpms, it would smooth out and sound good. So, I thought I would richen the idle mixture using my handy-dandy MFI adjustment tools from our host. I went 2 clicks at first and it was better. 2 more and even better then 1 more for good measure. Idles great but a little hard cold starting. Nonetheless, I let it run for 15 minutes or so varying the rpms gently and letting some heat build up. Things look good, sound good and I feel good so I load up the son and go around the block. First drive went GREAT! Ah, to be behind the wheel on a Porsche again was wonderful. My wife was at work which is 3 miles from home. I went on over the her work and back and it went well. Took the boy to school at noon and gassed it up with 91 octane pump swill.

The next day, I took it out again for a short jaunt and then that night took it out for another. Idle is still great but I’m having some intake backfiring at speed. Also, when I let off the pedal it backfires which indicates the stop microswitch is suspect. Is that correct? As for the run mixture adjustment screw, CMA says it’s located behind the only allen screw on the face of the pump. I suppose someone chaged it out over the years because they are all slotted. I could not find a pic anywhere so could someone please put up a pic pointing to the correct screw? TIA

Now for some q’s…
Where did you get your CO meter and timing light? And you MFI owners that maintain them yourself, what other MFI specific tools or otherwise should I pick up?