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Old 04-14-2009, 05:36 PM   #1
The Griz OP
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F800GS Break-in question?

I just got the 600 mile break-in service done today. Should I keep varying the throttle opening for a while? Or can I just forget about the break-in business and ride it like I stole it? Since I hit 600 miles? Opinions?
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Old 04-14-2009, 05:42 PM   #2
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I would ride it as hard as you intend to ride it, but I would avoid droning down the superslab at 80 mph for 3 hours. In other words, I would ride it hard but still avoid long periods of constant RPM. I just did the 3000 mile service on mine, and the oil came out as clean as it went in. I also changed the air filter at 3000 miles, but the original still looked darn good even after following my GF's 230 around in the dirt for quite a lot of miles. If you are doing mostly pavement, I would not even pay attention to the air filter until 6000 miles.
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Old 04-14-2009, 05:50 PM   #3
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Thanks, tmex. That's kind of what I thought. Needed to hear it from some one else.
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Old 04-14-2009, 06:55 PM   #4
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I am in the process of breaking in mine as well, and I will keep the points in mind.

T'mex, why avoid constant rpms? Is it the constant 80mph or the steady rpms? Or is the engine just not made for it?

Not that I am going to flog it like that, just curious...
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Old 04-14-2009, 08:15 PM   #5
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I was told on run in, the more gear changes the btter, also loading the bike going up hills as well as down is good for it. If the same principals apply with bikes as they do cars you need to get your rings to seat in the bores as high as possible without the high RPM or a constant speed, all the gear changes wares all of the filings out of the transmission, the aim is to do this within the 600 miles.
if this makes sense?
So in other words like tmex said, "ride it as hard as you intend to ride it"
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Old 04-14-2009, 08:19 PM   #6
Dr. Zaius
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After the 600 mile break in...it was game on! 4,000 miles and counting.
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Old 04-14-2009, 08:22 PM   #7
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Ride it like you stole it ...
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Old 04-14-2009, 08:25 PM   #8
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Thanks guys. Very helpful!

BTW, what a great bike. I can't stop riding it.
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Old 04-14-2009, 09:34 PM   #9
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Quote:
Originally Posted by dukedar
I am in the process of breaking in mine as well, and I will keep the points in mind.

T'mex, why avoid constant rpms? Is it the constant 80mph or the steady rpms? Or is the engine just not made for it?

Not that I am going to flog it like that, just curious...
Metal, while stiff, is elastic. A constant RPM will cause the piston rings to scrub the same area of the bore over and over again. Running higher RPM will produce more stretch and scrub a greater part of the bore. A good metaphor is to look at your fork tubes. You will see where the travel ends for the particular riding you did between cleaning. If you subsequently hit a bigger bump the travel will increase (OK, so maybe a bad metaphor) but it is visual. Varying the stress on the engine produces more even wear and better break in.
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Old 04-14-2009, 11:02 PM   #10
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There are several opinions on this, and all are based on some test results somewhere by some wazoo motorcycle professionals. I have broken in some bikes soft and easy, and others hard and fast with constant rpms for hours on end. The results have always been the same for me either way.
My KLR I used as a hiway commuter from day one and ran constant 5,000 rpm... it now has 55,000 miles on it and has great compression and doesn't burn oil.. go figure.
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Old 04-15-2009, 02:34 AM   #11
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Quote:
Originally Posted by Alejo
Ride it like you stole it ...
I own an ex demo r1150gs. I guess it has been ridden as above. Its one of the very few 1150's I know which after 100k does not use a drop of oil and still pulls like 100k ago...
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Old 04-15-2009, 03:50 AM   #12
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The only no-no is laboring the engine, don't. Always keep the engine in the meaty part of the power band, and the reason not to keep a constant throttle on the highway is so that the engine doesn't "lean up" to much and run too hot/burn stuff! Not so bad on a FI engine, but certain death on a carb engine.
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Old 04-15-2009, 06:54 AM   #13
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Quote:
Originally Posted by Bigem
and the reason not to keep a constant throttle on the highway is so that the engine doesn't "lean up" to much and run too hot/burn stuff! Not so bad on a FI engine, but certain death on a carb engine.
Interesting point. I never even considered that. I remember running two strokes flat out across dry lakes back in the days of my dez racing. If you did not hit the kill switch every so often, the bike would seize. Of cousre the two stroke relies on the intake gas for lubrication, but I think you are right about a carb'ed four stroke running a bit lean at constant throttle.
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Old 04-15-2009, 08:55 AM   #14
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My dealer told me to ride it like I stole it during the break-in and I did just that; or at least the best I could for being a new rider. My MPG for the first three tanks was around 30-33 so I was definitely working it. They also said no lugging / laboring the engine. At 1600+ miles now the MPG is averaging around 54. I'm still a new rider but at least me and bike are smoothing out a bit!

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Old 04-15-2009, 10:34 AM   #15
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Quote:
Originally Posted by tmex
I would ride it as hard as you intend to ride it, but I would avoid droning down the superslab at 80 mph for 3 hours.
+1.

IMHO, there's really no load or RPM limit while breaking in a bike. I do think its a good idea to stay away from constant RPMs, and I think its probably wise to make smooth throttle transitions as much as possible.

What you should NOT do...really for any mileage, but especially during break-in:

1. Ignore changing the oil and filter when reccomended.
2. Let the bike idle to warm up.
3. "Ride it like you stole it" before the engine gets up to temp.
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