Hence why I said contentious as the wiki guide goes against the grain of how to bed it in.
Wiki says:Warm the engine up completely:
Because of the wind resistance, you don't need to use higher gears like you would on a dyno machine. The main thing is to load the engine by opening the throttle hard in 2nd, 3rd and 4th gear.
Realistically, you won't be able to do full throttle runs even in 2nd gear on most bikes without exceeding 65 mph / 104 kph. The best method is to alternate between short bursts of hard acceleration and deceleration. You don't have to go over 65 mph / 104 kph to properly load the rings. Also, make sure that you're not being followed by another bike or car when you decelerate, most drivers won't expect that you'll suddenly slow down, and we don't want
anyone to get hit from behind !!
The biggest problem with breaking your engine in on the street (besides police) is if you ride the bike on the freeway (too little throttle = not enough pressure on the rings) or if you get stuck in slow city traffic. For the first 200 miles or so, get out into the country where you can vary the speed more
and run it through the gears !
What's the difference?Running in in practice
So how do you do the above, in real life? Easy. Warm the engine up gently, then go for a normal drive accelerating hard (but not necessarily up to very high revs) and then let the car slow down with the engine winding down. If you can do this by going for a fun 100 mile drive as your first drive, then you've really cracked it. The car will sound rough and "tight" (ie no power because the seal is poor) for the first few miles, but as the seals get better then the car will feel better.
In a turbo car this is really easy, because you don't have to rev it high. Just make sure that on each acceleration run you get a good woosh of power - this is the turbo working and the pressure of the gas in the combustion chamber will be high.
Running in advice for normal people (!)
Never work the engine hard until it's warmed up.
Do not drive on the motorway for the first 200 miles. Drive on A roads, over take cars as normal and have fun.
Drive on A roads if possible for the first 600 miles. Check the oil!