1981H xs1100 rebuild project, started Feb.2017

Collapse
X
 
  • Time
  • Show
Clear All
new posts

  • 3Phase
    replied
    Sorry, guys, I was spacing out while I work on and ride my XJ.

    Yes, there should be a Black wire for ground in the right-hand controls on '81 switch sets and there should be a matching Black wire for it in the harness connector.

    If there's no Black wire in the control, it might be from a different year/model and it will have to be grounded to the handlebar or the Start button won't work.

    Leave a comment:


  • TopCatGr58
    replied
    Hey Frank,

    I think Scott/3Phase informed us that the 81 added a ground wire to the handlebar set so that it didn't rely on the grounding to the handlebars, but I'm not totally for sure. Okay, just checked the wiring diagram for the 81SH, and it shows a black wire connecting to the starter switch instead of just going to ground.

    The fuses are all 10 A except for the turn signals which are 20 A. The other one is the MAIN fuse on the OTHER side of the bike and it's a 30 A.

    T.C.

    Leave a comment:


  • bikerphil
    replied
    The rear view mirror stalks are left-handed threads.
    Only the right hand mirror.

    Leave a comment:


  • FranksBMW
    replied
    2 observations and a question:

    The starter button/kill switch unit on the handlebar needs to be attached to the handlebar to be grounded and for the starter button to function.

    The rear view mirror stalks are left-handed threads.

    What amperage are the fuses? (1981H Venturer)

    Leave a comment:


  • FranksBMW
    replied
    Originally posted by red bandit
    The engine has to be running for the headlight to come on, unless someone did some special wiring.
    Great. Thanks for that info!

    Leave a comment:


  • red bandit
    replied
    The engine has to be running for the headlight to come on, unless someone did some special wiring.

    Leave a comment:


  • FranksBMW
    replied
    Tested the tank and the repair held. One petcock was leaking so I took it apart, cleaned and greased it. Now it holds.

    The headlight bucket is buttoned up. The turn signals all work.

    Question: Does the headlight only come on once the motor is running? Simply turning on the ignition key lights the brake light, allows the signals to function, and some dash lights come on, but the headlight does not. (The headlight does work - I tested it with direct leads from a battery.)

    Leave a comment:


  • skids
    replied
    Originally posted by FranksBMW
    Good news. Motor was flooded. Removed plugs and wiped dry. Ignition happens.

    Switched to another tank with sound drain tube. Tried silver solder on a few pinholes and covered up that poor job with JB Weld. Waiting 24 hours before testing.

    But the best news was the throttle cable figured out yesterday.
    Good move with switching the tank.

    Leave a comment:


  • FranksBMW
    replied
    Good news. Motor was flooded. Removed plugs and wiped dry. Ignition happens.

    Switched to another tank with sound drain tube. Tried silver solder on a few pinholes and covered up that poor job with JB Weld. Waiting 24 hours before testing.

    But the best news was the throttle cable figured out yesterday.

    Leave a comment:


  • FranksBMW
    replied
    Yes. Happy with the progress. I have another bike to ride and this XS11 is just a side project, so it's nothing I have to rush to finish before I can ride.

    Progress today: The throttle cable's too-short length has been resolved. The receptacle for the carb end of the throttle cable is on a short metal piece that is supposed to pivot. The piece was bent and could not pivot to the position to reach the end of the throttle cable properly. Straightened it and da-dah!

    This was my first time installing the carb bank with the airbox in place. Fiddly. The tank's fuel and vacuum lines are also fiddly to do due to the way they're tucked underneath. On my airhead this is easy to do, being easily accessible.

    Excited to try to start the bike again with the throttle working properly, but even with starter spray, there was no ignition. Hmmm. Love this journey!

    Leave a comment:


  • skids
    replied
    Originally posted by FranksBMW
    Good news. I am using auto booster cables and a spare car battery I have sitting around. The clamps do not make great contact with the battery cables of the bike. Today i inserted a bolt held with 2 nuts into the motorbike battery cables so the booster cable clamps make better contact, and that was the issue. The bike now cranks, starts, and runs.

    Bad news. The throttle cable seems to be too short and it holds the carbs open. The bike can't idle but runs at around 4K even with the throttle handle rotated closed. I'll have to investigate how the cable is connected.

    Good news: I successfully swapped the old fuse holder with a new one. It sure would be convenient to have 3 hands while soldering!
    You are definately making progress.

    Leave a comment:


  • FranksBMW
    replied
    Hi Phil,

    There is still quite a way to go. Bike has no ownership/title, for one thing. New tires for another. Then a safety check.

    Leave a comment:


  • MaximPhil
    replied
    Originally posted by FranksBMW
    Good news. I am using auto booster cables and a spare car battery I have sitting around. The clamps do not make great contact with the battery cables of the bike. Today i inserted a bolt held with 2 nuts into the motorbike battery cables so the booster cable clamps make better contact, and that was the issue. The bike now cranks, starts, and runs.

    Bad news. The throttle cable seems to be too short and it holds the carbs open. The bike can't idle but runs at around 4K even with the throttle handle rotated closed. I'll have to investigate how the cable is connected.

    Good news: I successfully swapped the old fuse holder with a new one. It sure would be convenient to have 3 hands while soldering!
    Hi Frank,
    Just in time for the warm weather Check the routing of the throttle cable. A new one is not expensive. Check the adjusting screw for the throttle pull is adjusted correctly.
    Phil

    Leave a comment:


  • FranksBMW
    replied
    Good news. I am using auto booster cables and a spare car battery I have sitting around. The clamps do not make great contact with the battery cables of the bike. Today i inserted a bolt held with 2 nuts into the motorbike battery cables so the booster cable clamps make better contact, and that was the issue. The bike now cranks, starts, and runs.

    Bad news. The throttle cable seems to be too short and it holds the carbs open. The bike can't idle but runs at around 4K even with the throttle handle rotated closed. I'll have to investigate how the cable is connected.

    Good news: I successfully swapped the old fuse holder with a new one. It sure would be convenient to have 3 hands while soldering!

    Leave a comment:


  • FranksBMW
    replied
    Finally a picture. This is how she looks today.

    JB weld plugged the pin holes, at least for now. Bad news is that the drain tube from the gas cap area to out of the back of the tank has rusted through so when the tank is tilted back, gas leaks out. Dirty temporary solution for now was to plug the drain hose with a screw.

    The weird thing is, now the starter doesn't respond to the start button. It did a few weeks ago. The key in the new ignition switch unit causes dashboard lights to activate but that's all. (The headlight does not work either, but maybe it doesn't until the motor is running?) I tried inserting the jumper wire to connect the ignition red and brown which is how I started the bike a few weeks ago. The dashboard lights light, but no starter reaction to the start button.

    Leave a comment:

Working...