To answer Pen15uk's question: you can still go fast and do so quickly keeping it under 5.5k RPM.
I also came tonight to post about running in, so I guess I'll join this thread. It's about running in, and also about what to expect from a twin. Take these questions from the perspective of someone who has never owned a new vehicle, has been using 30-year old carb'd bikes as daily drivers for ten years, and hasn't even owned a car in seven.
I had a 290 mile ride home on my new Scrambler. There was plenty of stop and go traffic on the way out of Houston (there was a freeway accident, but for various reasons I elected to stay on the interstate). I figured this would be alright, as it gave me the opportunity to vary my revs and gears throughout the range, as recommended by the dealership.
That said, the stupid amounts of torque meant that on the way home, I was having a lot of trouble riding at "only" 65mph. Every time I thought to look, I was suddenly at 6-6.5k revs and 87mph or so. Each time I caught myself, it was an oh crap
moment. Did I just ruin my bike? Am I about to get pulled over? Hopefully MotoMan isn't crazy?
I figure the manual recommendations are probably over-specced so that one high rev jaunt isn't going to hurt anything, but there were probably two dozens of these moments on the first half of the trip home.
It wasn't until about hour three where I felt like I was able to hold the throttle "just right" and keep it at 70mph. Even then... I had moments.
A week has gone by. I've put another 60 miles on the clock, so I am probably right around 340-50 or so. Small city highway driving, so mostly in the 35-55 range. I can comfortably keep revs between 4-5k.
Now my current observations: it is super easy to maintain speeds of 45-65 now. In fact, that jerky throttle that had me pretty terrified? It's no big deal at all to me anymore. Between test ride and pick up, I was ready to buy a Termi w/remap and
a throttle tamer, as those seemed to be the most consistently praised fixes for the throttle. Dealer messing up screwed the first option, and laziness on my part excluded the second.
But now? It's nothing. City riding is a breeze, and I can keep any speed I want, no problem. On the long ride home, I was frustrated that the difference between 65mph and 80mph was nearly imperceptible to me. Now, I can pick my speed without a thought.
But that troubles me. Have I quickly developed some competency with the throttle, or have I ruined the engine's performance to where it happens to "feel" better (if only for now)? Am I a savant, or just an idiot? Or neither, and the engine just mellows after a little break in?
Last thing: I've only ever ridden inline four UJMs. I don't think I always "get" what the L-twin engine is telling me, in respect to what sound and what level of sounds it should be making at each rev+speed range. Can someone give me a quick cheat sheet on what are good gears for "cruising" at certain speeds, in an unmodified Scrambler? IE what is an efficient, safe gear for crusing at 35mph, 45mph, 55mph, 65mph? When is the "right" time to use sixth gear?
edit: corrections, embellishments