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Posted on Aug 28, 2010
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Took coil loose and dont remember what wires go where

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  • Master 6,966 Answers
  • Posted on Aug 28, 2010
Anonymous
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Joined: Apr 06, 2007
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Hi and welcome to the site,

Initially, postback the model.

Offhand, on most 2 coil Yamahas, the red/white wire is the IGN +12 while the orange & gray would be the wires from the CDI. The Orange would be for 1 or 1 & 4.

Good luck and thank you for asking.

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I have a 1979 xlh sporty took bike apart to paint on re assembly i hooked up coil wires wrong had no spark fixed wires but could i have killed my coil still no spark.

Ok to test the coil, remove all wires from the small terminals on the ends. Use a digital volt ohm meter and put the function switch in OHMS, R X 1. Touch one meter lead to each of the small terminals. Your meter should read between 2-3 ohms as the '79 model had electronic ignition.

To further test the coil, reconnect the two white wires to one of the small terminals. On the other side, make a jumper wire. Connect the jumper wire to the other small terminal. Put the plug wires into the towers and put a set of spark plugs in the wires lying on the heads with a good ground. Now, turn the switch one. The terminals with the white wires on it should be "Hot". MOMENTARILY, ground the jumper to the engine and take it back loose. When you take the wire loose, you should see a spark at the plugs. If you do, the coil is good and your problem lies elsewhere.

Good Luck
Steve
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For 2000 Chevrolet Cavalier 2.2 liter L4 VIN "4" check...

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Check out the wiring diagram:
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dde5042.jpg 78bd4d6.jpg Problem could be here or at the ECM connection. If not, then the coil pack has gone bad.

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