I had a crazy time doing this.
I did this in my driveway, using Rhino Ramps. It's indeed true that you can access the bolts easily from underneath. Once it was up on the ramps, I oriented myself the drain plug, and the fit was indeed tight. I was using a 1/2" driver with a huge socket, and with a bit of a magic wiggle, finally got it in. Once the seal was cracked, you can unscrew by hand.
Once I found the drain, I oriented to the fill. I don't know how the poster above me did it, but I would have said the fill hole is horizontal, underneath the angled bolt of death pointing up and towards the airbox. I confirmed this looking at the images, and it seemed to match up. The fill bolt also looks just like the drain bolt, 24mm with a little circle in the middle.
Also, without removing the fill bolt, when I removed the drain bolt the existing fluid POURED out of the tranny. It gurgled against the vacuum, like pouring out of a gallon jug, and funky fluid got everywhere. Fortunately my drain pan is quite large and it caught most of the fluid.
That done, I re-sealed the drain bolt, and got my redline MT90 ready. I got the same fill tube as the OP, but mine had a convenient measured funnel on top, i forget the specific name. It holds a quart. With a little grace and patience, you can fill the funnel, tuck it under the stock airbox, feed the hose directly into the fill hole, and twist the seal to start flow. Doing this, I fed all three quarts of redline in, minus a puddle (I also used a compressor to drive out as much fluid as possible). I also spilled a bit on my arm when I overfilled the funnel (hurrying because of rain, see below). On the last quart, just at the very end, the fill hole didn't accept anymore of the fluid. I would say it was 2.90 quarts in all - it didn't drip, but I was up on the ramps.
While I was filling the tranny, the heavens broke open and pissed all over me with torrential rain. I was already filling the tranny, so there was no turning back. That bit sucked, completing the job in the rain. I made sure that no water got into the redline, and the fill plug was dry when I put it back on.
Questions: Can someone confirm that the drain and fill plug are identical? I'm about to go drive it, and I sure hope I didn't **** that part up.
As far as the amount, most of three quarts is sufficient, yes? This is already kind of answered, but what's the worst that can happen if it's a tad over full? I'd prefer not to take the plastic underthing off again and crack the fill plug, as I don't like playing with the threads on these screws anymore than I have to.
Yay. Hope this was worth it. I'm still paranoid about doing things like this to my very expensive baby...
