Ok before you guys say search the forum I have . I have a 81 xs650 that recently ate a valve and I found a replacement motor from a 1977 xs650 and wanted to know is it a direct swap including harness etc... Because I noticed on the 81 I have 2 loose wires and 2 plugs and the 77 motor Nole has the 2 loose wires and 1 plug . I know the 81 has electronic ignition and the 77 doesn't and I know the motor will physically fit the question is more about the harness
-
Enjoy XS650.com? Consider making a donation to help support the site.
XS650.com receives a small share of sales from some links on this page, but direct donations have a much greater impact on keeping this site going.
77 motor in 81 xs650
- Thread starter leebizz
- Start date
-
- Tags
- interchangeability
Not sure what the 77 motor Nole is that you speak of but yes, it'll swap. Use the stator and rotor from the 81.
member3480
RICH
If you are just dealing with a 77 harness VS 81 harness YES THEY are different
The 77 has points and separate REG/REG if bone stock. The 81 is a TCI setup so the plugs are different for charging and electronics.
The swap should go like this Leave or pull points plate Pull alternator and rotor and swap with the 1981 parts . Not a hard swap. I have got motors in that were converted and still had points plate in. Your bike is 1981 correct so wires are not a issue.
The 77 has points and separate REG/REG if bone stock. The 81 is a TCI setup so the plugs are different for charging and electronics.
The swap should go like this Leave or pull points plate Pull alternator and rotor and swap with the 1981 parts . Not a hard swap. I have got motors in that were converted and still had points plate in. Your bike is 1981 correct so wires are not a issue.
