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  1. J

    New owner of a 1981 XS650 and I don’t know where to start

    The starter works but slips. I know there is a tensioner spring or something that needs to be adjusted. I'll get around to it next time I change the oil.
  2. J

    New owner of a 1981 XS650 and I don’t know where to start

    I installed the new rotor from Jim and cleaned all the connections in the headlight assembly. I'll continue to work on the other connections. Here are my voltage recordings. I never once used the electric starter. I think with the 750cc kit the starter is working to hard which is killing the...
  3. J

    New owner of a 1981 XS650 and I don’t know where to start

    Big shout out to Jim. He got my rotor back to me and it looks perfect. I wish I had a before and after picture. I’ll post the finished product anyway. The plan is to work on the loom, reinstall the original rotor and run a few test Melnic suggested over the weekend. Thanks guys.
  4. J

    New owner of a 1981 XS650 and I don’t know where to start

    Fuses, battery and headlight.
  5. J

    New owner of a 1981 XS650 and I don’t know where to start

    Jpdevol. I tried the multimeter and got 0. I’ll have to dive further in on how to test the rectifier. Most of this electrical stuff is Chinese to me. Everywhere I look wires have been spliced and wrapped with electrical tape. I might just have to start from scratch. Save what parts I can and...
  6. J

    New owner of a 1981 XS650 and I don’t know where to start

    No plans for highway riding, Marty. I also did the test light and got nothing.
  7. J

    New owner of a 1981 XS650 and I don’t know where to start

    I checked the battery and it came back good for the second time in 6 months. So I‘m still at a loss as to what is causing me all the electrical problems. Guess it could be the wiring harness. Is there a way to check the stator and rectifier? I checked the battery two days ago and it was showing...
  8. J

    New owner of a 1981 XS650 and I don’t know where to start

    Update Marty I tested the electrical system with a battery testing light. I got no light connecting the ground terminal to the battery ground. I pulled the battery and will be taking it to O’Reilly for testing tomorrow. Wingedwheel I took the chain roller off and checked to see if that part...
  9. J

    New owner of a 1981 XS650 and I don’t know where to start

    I'll try and add a few more pictures. You guys think I can just take it off? I googled "chain roller" and found some generic parts. I might just replace it.
  10. J

    New owner of a 1981 XS650 and I don’t know where to start

    Got your message, Jim. Thank you. Got another question. My drive chain is rubbing on some kind of pin that sits under the sprocket. The pin has two bearing that look like they once were covered in a rubber. The rubber is gone and now the pin and bearings are exposed. Can you fellas point me in...
  11. J

    New owner of a 1981 XS650 and I don’t know where to start

    Ill pull the battery and get a hold of a test light ASAP and report back. Marty, Ill catch back up to you after Thanksgiving. Thanks again. Jim, I sent you a message about getting the original rotor rewound. Let me know if you got it.
  12. J

    New owner of a 1981 XS650 and I don’t know where to start

    Update on the bike. I purchased the UNI air filters and installed them. The bike was on a float charger for several days. The starter did not want to turn the bike over. Not a real surprise considering I have not ridden the bike in days. I went to kick on it and it turned over no problem. Nice...
  13. J

    New owner of a 1981 XS650 and I don’t know where to start

    Thanks 5twins on the TCI timing recommendation. I'll put it on the "to do" list.
  14. J

    New owner of a 1981 XS650 and I don’t know where to start

    Any recommendations on air filters for those BS38 that won't restrict the ports?
  15. J

    New owner of a 1981 XS650 and I don’t know where to start

    I can't thank Marty and this forum enough for all the knowledge and support. He let me come to his house and work on my bike for several hours. We went through the whole thing. Bike is running great. Thank again Marty. We'll have to get a ride in, soon.
  16. J

    New owner of a 1981 XS650 and I don’t know where to start

    Yes, I have the original rotor. Are you the member that rewinds them? If so I need to get that done. Please message me. Just to be clear about the timing chain tensioner. When I bought the bike the tensioner was way to far out. Being brand new to street bikes I didn't think anything of it...
  17. J

    New owner of a 1981 XS650 and I don’t know where to start

    So I looked under the chrome caps to find nothing. Just like nj1639 told me I would. Except I didn’t see a cam there either. So that means TCI or some other aftermarket timing system? I’m starting to suspect that the timing chain tensioner might be the issue. When I first acquired the bike the...
  18. J

    New owner of a 1981 XS650 and I don’t know where to start

    Thanks for the replies. I honestly am not sure what ignition system is on the bike. Looks stock to me. Ill look under the chrome cam covers tonight and report back. I replaced the rotor with one from MIkes. I didn't know any better at the time that aftermarket is trash. I hope to get the...
  19. J

    New owner of a 1981 XS650 and I don’t know where to start

    First of all thanks for this group. I’m brand new to the forum but the knowledge I have found already has been great. So here we go. Ive got a 1981 XS50. Honestly I’m not even sure if everything is original. It was made into a cafe reader/scrambler before I purchased it. I was having electrical...
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