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  1. Replies
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    I've had two failures like this on my 85 R80RT...

    I've had two failures like this on my 85 R80RT that were Hall sensor failures. Watch the tach needle when the engine is stumbling. Since the tach is counting ignition trigger pulses, it should drop...
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    432

    I have an 85 R80RT with over 240,000 miles on it...

    I have an 85 R80RT with over 240,000 miles on it and no circlip. I'm the original owner. I wish I had a circlip for peace of mind, but the two transmission rebuilds I've had done were performed by my...
  3. Replies
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    585

    The Farley (looks like the Brown and clamps to...

    The Farley (looks like the Brown and clamps to the frame instead of exhaust) fits on a Monoshock - I have one on my 85.

    There is a bit of interference with the foot pad on the centerstand - I used...
  4. Kurt: Thanks for the reminder about Brook's well...

    Kurt: Thanks for the reminder about Brook's well documented restoration. I found his write-up. It appears that pulling that camshaft oil seal is what convinced Brook to buy the Lisle puller. Brook...
  5. Need to Replace the Front Camshaft Oil Seal

    I'm hoping this will be easy, but I wanted to see if the rest of you had any pointers or warnings.

    I've got an 85 R80RT with the "bean can" ignition cannister on the end of the camshaft. It...
  6. It Started!

    It was indeed a failed coil with open secondary windings. I installed a new coil Saturday as soon as it came in the mail and the bike was up and running. I've got about 60 miles on the new coil and...
  7. I hope that there will be an "It Started!" post...

    I hope that there will be an "It Started!" post once I get a new coil. In theory, the new coil will be delivered Saturday. I gave the previous Bosch crack-o-matic (complete with crack) to a guy who...
  8. Problem Identified

    Just had a chance to tear into the bike yesterday evening.
    I had wondered about a hall sensor. My new Alpha can still contains one and I can't imagine that it's any more reliable than the ones used...
  9. Yesterday evening I re-torqued the head that had...

    Yesterday evening I re-torqued the head that had the recent stud repair and the reset the valves on both sides. They were a bit tighter than spec, but not bad. I also made a really quick run through...
  10. Still at work. Ground cable is clean and tight....

    Still at work. Ground cable is clean and tight.
    Valves. Good point. Had a left side cylinder stud repaired a couple of thousand miles back and forgot :blush to re-torque the studs and re-set the...
  11. Bike Stalls After Freeway Run, Does Not Want to Restart

    I am the original owner of this 1985 R80RT. When I was a new BMW owner, the bike would often stall on freeway offramps after a long freeway-speed speed run. I would shut the throttle down to idle as...
  12. Replies
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    594

    I had one of these with my new 85 R80RT. The deep...

    I had one of these with my new 85 R80RT. The deep section of the box goes down into the space between the back of the too-small-to-be-useful 20AH battery and the front of the rear fender. I cut out...
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    646

    The quickest way to trouble shoot your speedo/odo...

    The quickest way to trouble shoot your speedo/odo would be to use a GPS or Smartphone with a speedo app. Go for a ride and watch the GPS/Smartphone speedo vs. the bike's speedo. At the end of the...
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    290

    OK - So the headlight flickers on lo-beam, does...

    OK - So the headlight flickers on lo-beam, does not work on high-beam, but lights the high beam in the "flash" position. That would sure make you wonder about the switch. I am also the original owner...
  15. If you are looking for San Jose clamps on e-bay,...

    If you are looking for San Jose clamps on e-bay, you might want to be careful. The current SJ clamps are made from billet. I have an older one that appears to be sand-cast and which has broken (had...
  16. Replies
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    1,647

    When the GEN light stays on, you can (at first)...

    When the GEN light stays on, you can (at first) assume that the current path from battery + through the GEN light, brushes, slip rings and rotor windings to ground is all good. You COULD have a dead...
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    1,647

    The GEN light won't light at all unless current...

    The GEN light won't light at all unless current can flow through the wires, brushes and rotor. Flakey wires or connectors, short or hung brushes or an intermittent open rotor could all cause the GEN...
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    There is a pretty easy fix. Kurt's signature line...

    There is a pretty easy fix. Kurt's signature line has a link to a bunch of resource and reference sites. One of these is a step by step pictorial walk through of gluing the odometer input shaft to...
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    Yes, those oil pressure switches do fail and...

    Yes, those oil pressure switches do fail and drip/spray oil on your boots. I even bought a 24mm crowfoot wrench to make those switch changes easy. That would have be too simple and cheap. My current...
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    864

    I have out of town visitors this weekend and that...

    I have out of town visitors this weekend and that may keep me away from tools and the garage... However, if I remove the rocker cover and find that nut loose again, I will suspect that the stud is...
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    864

    Yes, I was able to get 33NM on the stud that I...

    Yes, I was able to get 33NM on the stud that I was worried about. Perhaps that's a good sign as far as the stud goes? If the stud was really messed up, I imagine that I could have just kept...
  22. Replies
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    864

    Drooling Head Gasket

    I have an 85 R80RT. A few days ago, I noticed that the left head was shiny with oil around the head gasket - that area is normally as dry as a bone. The head gasket has no visible cracks or breaks in...
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    I have an 85 R80RT that came from the factory...

    I have an 85 R80RT that came from the factory without an oil cooler. I'm not sure how much they help, and that's not what we're asking about here, but I did add an oil cooler with the large...
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    From your description, I can guess which unit...

    From your description, I can guess which unit we're talking about here. It is a cam driven can replacement, spinning a short cylinder that has two slots in it and a single Hall sensor. Mine has...
  25. If you've got the money for a new MC, Anton's...

    If you've got the money for a new MC, Anton's advice is the way to go - you should get many trouble-free years of service out of a new MC.

    If you don't have the cash, it is pretty easy to polish...
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