F800GS Break-in question?

Discussion in 'Parallel Universe' started by The Griz, Apr 14, 2009.

  1. The Griz

    The Griz Long timer

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    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?
    #1
  2. tmex

    tmex Long timer

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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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  3. The Griz

    The Griz Long timer

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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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  4. dukedar

    dukedar 60 easy payments!

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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...
    #4
  5. RAD800

    RAD800 Been here awhile

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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"
    #5
  6. Dr. Zaius

    Dr. Zaius It's a mad house

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    After the 600 mile break in...it was game on! :evil 4,000 miles and counting.
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  7. Uncle Pollo

    Uncle Pollo Long timer

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    Ride it like you stole it ...
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  8. The Griz

    The Griz Long timer

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    Thanks guys. Very helpful!:thumb

    BTW, what a great bike. I can't stop riding it.
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  9. tmex

    tmex Long timer

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    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.
    #9
  10. DSjunky

    DSjunky Runnin On Empty

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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.
    #10
  11. mousitsas

    mousitsas Long timer

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    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...
    #11
  12. Bigem

    Bigem Long timer

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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.
    #12
  13. tmex

    tmex Long timer

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    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.
    #13
  14. RobStar

    RobStar Still On Training Wheels

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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! :clap

    RobStar
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  15. bxr140

    bxr140 Flame Bait

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    +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.
    #15
  16. skamikazee

    skamikazee Noviço

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    I did that service yesterday, and asked the same question to the chief mechanic, who is also a 800GS owner.:deal

    He told me the break in is not completed until about 3000Km (1800Mile)
    So by his recmendation, if you want to get a perfect polished engine, for the next 600 mile you should run it until 5000 RPM, ocasionaly reach 5500RPM downhill or on straights
    1200 -1800 Miles go for 5500RPM ocasionaly reach 6500RPM
    After this, with 1800miles your free to push it!

    It's amazing how dealers/mechanics over difrent country's say difrrent things, if some of you guys were told to push it hard since day one!

    I guess i'll try and stick with the plan!
    But the dark side is Sooooooooooooo strong!
    #16
  17. mousitsas

    mousitsas Long timer

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    All dealers will tell you to break it in according to BMW plan.
    The 'ride it as you stole it' procedure is very logical if you follow the arguments, however very politically incorrect, for companies to recommend to consumers for 2 reasons.

    1) people will die. Imagine a newbie on a fireblade riding it like he stole it for breaking it in.
    2) Its a lot more involved process than the rpm limitations vs miles the manual suggests. You need to warm up well, ride for short 20 min bursts, then change oil and let your engine cool down completely. You have to do that a few times before you are ready, and I'm not even mentioning all the details the experts say.

    Therefore, the company prefers to let you wait for a much longer time and take it easy in the meantime.
    #17
  18. bxr140

    bxr140 Flame Bait

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    And in fact, doesn't actually suggest you "ride it like you stole it". It flows as a meticulous application of load, thermally and...err...throttle-ally. :huh :evil
    #18
  19. skamikazee

    skamikazee Noviço

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    So you'r saying that now after the 600 miles service it's ok to rie it beastly style:evil
    All that crap he said i should do until 1800 miles is just BS? So it would be politically correct?
    #19
  20. mousitsas

    mousitsas Long timer

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    The main argument for hard breaking in, is for the piston rings to sit properly, which they only do after high loads. I would flog it if I were you, for about half an hour with frequent shifting, to red line and back, in short bursts, then I would change oil and filter, and consider my bike broken in.
    Google 'motoman break in secrets' for some arguments this side of the fence.
    #20