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  1. Thread: Final Drive

    by dduelin
    Replies
    18
    Views
    1,517

    My R100 has the most accurate speedo of any...

    My R100 has the most accurate speedo of any motorcycle I have owned. It is less than 1 mph off at an indicated 60 mph.
  2. Replies
    8
    Views
    1,062

    Under the tank is the ignition control unit which...

    Under the tank is the ignition control unit which is mounted on or next to the frame. The underside of it requires a thin layer of heat sink paste between the unit and the frame mount. The paste...
  3. Thread: Final Drive

    by dduelin
    Replies
    18
    Views
    1,517

    Acceleration will be a little quicker and gas...

    Acceleration will be a little quicker and gas mileage might be little lower with the 32/10. That is the trade off for running slightly higher rpm per given road speed.
  4. Thread: Stripped screw

    by dduelin
    Replies
    15
    Views
    1,780

    You can use a short well nut for this. When I...

    You can use a short well nut for this. When I bought my 81 with 77,500 miles on it it had a well nut sealing this level check hole. It still does 40,000 miles later. A well nut is a rubber plug with...
  5. You mean "Just Kidding, Not Really Last Edition"...

    You mean "Just Kidding, Not Really Last Edition" 1984 R100RS? I wasn't aware of similar RT.
  6. Replies
    17
    Views
    1,469

    The brakes are better after 1981 and the timing...

    The brakes are better after 1981 and the timing spark went electronic in the same year - both features that make airhead maintenance a little simpler. The post '84 models will also handle a little...
  7. Replies
    36
    Views
    5,564

    I am one of those that bought a 1981 R100 with...

    I am one of those that bought a 1981 R100 with the original side stand and got used to it before I knew there were options. I am used to it long since and haven't had the bike fall yet. I deploy and...
  8. Replies
    13
    Views
    1,572

    The first number divided by the second is the...

    The first number divided by the second is the final drive ratio so we have a 3.36 vs a 3.55. The 3.36 FD will turn a little less rpms for the same road speed mph and will possibly have more top speed...
  9. Replies
    10
    Views
    1,022

    A nice pair is a Bridgestone S11 Spitfire on the...

    A nice pair is a Bridgestone S11 Spitfire on the back and Bridgestone BT45 on the front. This pair handles well and easily goes 10,000 miles. The S11 front has a central tread sipe that can be...
  10. Thread: tire wear

    by dduelin
    Replies
    5
    Views
    513

    Google is your friend. Google "why motorcycle...

    Google is your friend.

    Google "why motorcycle tires wear on the left" and cancel your appointments for tonight.
  11. Replies
    27
    Views
    2,534

    To the tax assessor it is whatever the papers say...

    To the tax assessor it is whatever the papers say it is. To a BMW parts guy it is an 1981 R80 ever since March 1981.
  12. Replies
    53
    Views
    3,189

    I had exactly the same symptoms. Under hard...

    I had exactly the same symptoms. Under hard acceleration ..... pop pop...... tach goes to zero.....engine stops like the key was switched off or the kill switch is closed...engine dies for a moment...
  13. Replies
    53
    Views
    3,189

    We all seem to have good ideas and here is...

    We all seem to have good ideas and here is another. I had a similar problem with my 1981 R100 last spring. It would up & die and I would coast to the side of the road. Sometimes it would start right...
  14. Replies
    47
    Views
    2,671

    I don't think anyone here ever said or implied...

    I don't think anyone here ever said or implied that. My comment was aimed at the implication that high speed travel was the same as high speed long distance travel.

    To the OP I second the "do the...
  15. Replies
    47
    Views
    2,671

    I think what he meant was that Germany is smaller...

    I think what he meant was that Germany is smaller than the state of Montana, and about 35 of the other 49 states, and you can ride from one end to the other the long way and still ride less miles...
  16. Replies
    7
    Views
    1,054

    If you are so inclined this is likely a simple...

    If you are so inclined this is likely a simple repair. I did my '81 R100 about 9,000 miles ago. An initial try at it with JB Weld on the shaft with the slipping drive gear was short lived so I took...
  17. Replies
    39
    Views
    4,446

    I think you confuse diameter with radius. Two...

    I think you confuse diameter with radius. Two popular airhead tires in inch and metric (110/90) are .5" apart in diameter which is .25 inch more ground clearance. Both are 4.6" wide. Who said 4.00 x...
  18. Replies
    9
    Views
    954

    If the battery was replaced with one not exactly...

    If the battery was replaced with one not exactly OEM size it but a little taller thus the rubber seal is no longer there because the seat won't fit against the tool kit tray.
  19. Replies
    19
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    1,456

    Look again closely at the forks then at the...

    Look again closely at the forks then at the Clymer book ID drawings. Unless the forks are non-stock you should have Type III forks as previously posted. The only sealing parts are copper washers...
  20. Replies
    8
    Views
    1,217

    I'll add to be careful removing the brushes from...

    I'll add to be careful removing the brushes from the brush holder on the stator. It is brittle and easily broken and make a diagram of what washer goes on what terminal in what sequence. Not hard to...
  21. Thread: Heated Grips?

    by dduelin
    Replies
    9
    Views
    1,614

    Oh Please. $100 plus shipping from the UK? $250...

    Oh Please. $100 plus shipping from the UK? $250 from Max?

    SymTec makes a nice affordable set of MC heated grips that install under our original grips or whatever on the bike. I have had a pair for...
  22. Thread: Airhead valves

    by dduelin
    Replies
    18
    Views
    1,704

    Valve seat recession should not be a deal...

    Valve seat recession should not be a deal breaker. Most high mileage 81-84's will have had hardened Stellite seats installed by now, if not, non-hardened seats still went 50-80,000 miles before...
  23. Replies
    23
    Views
    2,357

    The motorcycle experience is subjective to a high...

    The motorcycle experience is subjective to a high degree. I recently rode a friend's 2010 Camhead RT a couple hours while he rode my Honda ST. I really did like the RT but I kept coming back to the...
  24. Thread: Zddp

    by dduelin
    Replies
    27
    Views
    3,386

    One way to approach this is to know that as API...

    One way to approach this is to know that as API ratings were released that superseded SG, the amount of ZDDP in the oil was less. It doesn't matter the brand because API ratings are standards. If you...
  25. Replies
    15
    Views
    2,379

    About 3".

    About 3".
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