Dismantling manual - BMW F800 Riders Forum & Registry



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  1. #1
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    Hi,

    I recently crashed my F800S in a rather undignified way - during heavy rain, frontally, in to the car in front of me.

    Result: Nearly all the fairings are split and I'd like to get the frame out of the bike to get it measured for alignment.
    That means putting it back in at some point - and that requires a whole lot of torque numbers, which I don't have.
    I've seen a few books around, but I'm wondering which one i'd want for this?
    I'm fluent in german and english and I'd like metric units.

    Cheers

    tengu

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  3. #2
    Daboo's Avatar
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    Maybe someone lives close by? Hard telling, since you don't have your location in your profile.

    Alternatively, check out YouTube for the service procedures. It'll cover much of what you'll have to do. He includes wrench sizes and torque values.

    Chris
    Elnathan - 2014 BMW F800GT
    IBA# 49894 True Rounder = 0-20's - Rounder -- to -- 100's+ Red Hot Rounder

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  5. #3
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    Oh. Yeah, fixed that.
    Well, Youtube didn't have much to offer in terms of frame screw torque figures or any tips on how to get the frame off the engine. The videos made by someone associated with this site sadly only get to the point of disassembling the fairing frame - which is long gone on my bike. I'm currently at the stage of figuring out what I have to unplug where to get the rear sub frame off. Thankfully, that only seems to be the electrical wiring for fuel pump and lighting and my next step is going to be taking the fuel line off the pump. If anyone has any tips on why the ECU frame seems to be stuck and what I have to remove for that part to get out, I'd be grateful.

    The shop I talked to has a ridiculously cheap price for measuring the frame if I deliver the frame without anything on it, and as I'm suspecting that the frame is toast anyway due to the crash, I might as well take it off because I'll have to drop in a new one anyway. I'm getting it measured just to make sure that I do have to get a new one, because getting a new frame in to a bike is quite a hassle - from a legal point of view. Riding the Autobahn on a bent frame is no fun at all either, or so I'm told.

    But it looks like I'm going to be stuck with finding a RepRom and going through that on reassembly.

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  7. #4
    Sundog52's Avatar
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    Can you get a hold of a service CD? It has a section dedicated to torque specifications.
    Sundog 

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    TheMeteor's Avatar
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    Does the Haynes Manual include this information? IIRC, it does. I have one but it is boxed up while we completed some renovations.
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  9. #6
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    I'm sure that if you need a torque value, you can ask and get it.

    Chris
    Elnathan - 2014 BMW F800GT
    IBA# 49894 True Rounder = 0-20's - Rounder -- to -- 100's+ Red Hot Rounder

    John 14:6 

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    MGD109's Avatar
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    I've never needed a dismantling manual that part I seem to manage with consummate ease it's putting back together again that's always been the tricky bit.
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  11. #8
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    Quote Originally Posted by Sundog52 View Post
    Can you get a hold of a service CD? It has a section dedicated to torque specifications.
    managed to obtain one. Haven't looked in to it yet, though, the project is on ice at the moment due to other time consuming efforts that unfortunately do have deadlines.

    Quote Originally Posted by Daboo View Post
    I'm sure that if you need a torque value, you can ask and get it.

    Chris
    I'm sure that would work too, but ultimately it would be rather exhausting to ask one after the other. A manual would leave no room for miscommunication.


    Quote Originally Posted by MGD109 View Post
    I've never needed a dismantling manual that part I seem to manage with consummate ease it's putting back together again that's always been the tricky bit.
    I've usually managed to break something whenever I took something apart. I want to avoid that, besides, I think my landlord would quarter me if I were to accidentally spill brake fluid or oil on to the wooden floor boards.


    Thanks for all the help!

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  13. #9
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    Quote Originally Posted by tengu View Post
    Quote Originally Posted by Daboo View Post
    I'm sure that if you need a torque value, you can ask and get it.
    I'm sure that would work too, but ultimately it would be rather exhausting to ask one after the other.
    Nah...I got nothing better to do.

    Chris
    Elnathan - 2014 BMW F800GT
    IBA# 49894 True Rounder = 0-20's - Rounder -- to -- 100's+ Red Hot Rounder

    John 14:6 

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  15. #10
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    T25 Torx, 2nm on the fairing screws

  16. #11
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    Quote Originally Posted by Daboo View Post
    Nah...I got nothing better to do.

    Chris

    Yeah nah. The torqueing instructions for reinstalling just the frame alone are almost a full letter page, that would suck to do via a forum.

    Interesting update though: BMW does not provide a figure for measuring the steering tube on the frame alone, they specify a position for the frame and the rear suspension.. swing (?) mount together, meaning that in order to get the lay of the land, I have to put the frame back on the engine to get it checked, take the headers off, lose the swing and so much other crap... once I'm done, I might as well completely tear down the engine too. very uncool.

  17. #12
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    alright, so my frame is straight, i've got a new fork, now how do i fit what cable where... If anyone happens to have some photos of the wiring around the ABS modulator, that would help a lot. Thanks!
    Last edited by tengu; 02-26-20 at 09:19 AM.

  18. #13
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    it's been six days and I'm almost done. My burnt out standing light threw me for a loop, but after looking at some wiring diagrams I relized that the high beam lighting up means the big plug is working and the engine not being on is the reason for the low beam not being on. The warning in the MFT was for the standing light, which was burnt out. Moral of the story: Don't fix electrical gremlins after 12 pm, you'll just miss the obvious solution for an hour.

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