That is a very old site. He obviously knows a thing or two about motors. All kawasaki's come with the same sticker...so don't give me the read the manual speil. Not all Kawasaki's could possibly need to stay under 4,000rpms. My ninja 250 only hits 40 or so at 4000rpms in sixth gear. A zx10 hits alot higher at 4000rpms in sixth gear. Those stickers are there for legal reasons more than mechanical. They don't want some squid to hit the rev limiter for three hours straight the first day he buys it.
I have heard great stuff about MotoTune, and his bikes regularly win races. Yes it is true that the rider wins the race as much or more than the bike, but if the fast guys are riding his *****, that means it works.
I think it makes sense to ride the bike during break-in the way your going to ride it after it's broken in. Don't beat on the thing but work it hard. Make sure the bike is warmed up, proper oil grade and go for it!
I don't know how new or revolutionary this is. The folks I ride with have talked about flogging the thing every now and then during break in for maybe thirty years. Prolonged high speed running is the real enemy. It's bad for motorcycles too.
A mate of mine was a motorcycle cop for a few years and he told me that when he and his partner were given their new BMWs, his partner thrashed his ride from the word go, for the same reasons as given by motoman. - Pete always swore that his partner's bike was faster...
I used his technique breaking in my 2005 Harley ultra on the inital ride back to Portland from Missoula.
Now that I have 8000 some odd miles on the machine, I can say that I am very pleased with how it runs. I can pull redline in 5th gear and I average 50 to 60 miles per gallon depending on terrain traversed. Let me just say that pulling redline in 5th gear will buy you a $1000 ticket in the great state of Oregon so ride with care.
I've been riding since 1972...and since 1979 on street bikes...
Personally, a proper Break-In is when you accelerate then decellerate often to avoid running at the same RPM... shift at 75% of the max rpm then down shift etc...vary your speed, shift-shift-shift and change the oil/filter at 500 kms.
Never had problems doing it that way...
*I don't believe that bringing the rpm to the red-line is good to a new motor!
I can't remember which magazine, either Cycle World or Motorcyclist two issues ago had an article about how to treat your new bike. Many subjects were covered, but one was break-in. They interviewed factory technicians who were responsible for properly preparing bikes for motojouranlist review, including proper breakin. It was the holy grail of comments, as the guys said basically what mototune dude said. Not to that detail, but just that there are no real RPM limitations, more in the method you ride. If you have a copy, take a look as I can't remember the details. FYI, my last two bikes ZX-10R and M109R I've broke in loosely based on the mototune method. I'm in no hurry to hold it WFO so I take my time, but I do ride the bike and sample all it's power and torque during break in, I don't hold it at redline through the gears though. I've never experienced any problems.
Wonder when a progressive technical publication (guys at Motorcycle, are you reading this?) gets 2 new bikes, runs them in using different methods, and then test the power & piston leak. Should be interesting.
Right so kawasaki just puts the sticker on there for yucks..What legal reason? A sticker isn't going to stop some idiot who reads something stupid by another idiot who is a grease monkey with no formal training. How about an economic reason? We should all thank this idiot for increasing warranty claims. Also we shoud thank bikers who refuse to heed the advice of the sticker and in the owners manual . bikers are such mental giants sometimes.. Sometimes I hide the fact that I ride cause of this.
Hmm I wonder how Kawasaki, Honda, Yamaha arrived at the proper break-in process? Do think during engine development and testing they learned what works best? How many engines do you suppose gets tested at Honda during engine development? Come on guys read the fracking manual. ... break in secrets my ass
How many lawsuits do you suppose the big four would get in if they advocated using Motoman's "Street Break In" procedures in their manuals? How about when some fool got themselves killed doing them on the interstate?
I wonder what technique the big four use to break in their race engines?
The manual's break in procedure is there as a CYA measure.
I agree with just about everyone on here.. I had a friend with a new Busa break his bike in how this guy recommended.. well in under 3k he needed a new motor. Granted it was replaced by warranty but still.. Every bike I've ever owned I've broken in via the manual and I've had NO PROBLEMS. I will take a tad less horsepower to get a engine that lasts.
You're assuming the manuals are written by the engineers. The break-in section is likely written by attorneys.
In an article in American Rider, Joe Minton described touring the Honda Goldwing assembly line and watched as Honda engineers took each Wing off the line at final assembly and wound them to redline before shipping them.
Minton is an advocate of the "large throttle opening" type of break-in procedure.
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