Question about 1976 Yamaha XS 500

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Tt500 wireing First, Thankyou so much for your input,however i have only one wire comeing off the coil (no negative) two from the generator and one from the points. Any suggestions?

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I have edited the picture to show what to do.

  1. The power wire from the generator is wired to the points wire.
  2. The points wire and generator wire are wire to the coil +
  3. The coil is frame grounded when mounted.

Note:You may need to try each of the 2 wires from the generator(try one and if it doesn't run or run right,try the other wire,Since the energize at different times)

tt500 wireing - 57f2415.jpg

Posted on Jan 26, 2009

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Contact points cover open.

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Right side points are for cylinders 2 and 3

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Right side points have a Black wire coming from it.

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One coil runs cylinders 1 and 4.
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BUT, check the specifications for the coils you're going to install. Connect the Negative side to the points. The Positive side to the ignition switch.

The Orange wire with a White stripe, coming out of the harness of the Suzuki Gs550 is from the ignition switch. It goes to a splice connector, and from there goes to two wires. The wires split off into one wire for each coil.

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There is a Black wire on the coil, that is used for Cylinders 2 and 3.

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Glad I could help.

Please rate this fixya

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Yamaha tt500 wiring

This should do it for you and please rate this solution when you can.

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