Question about Yamaha Xv 250 Virago S Motorcycles

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Took coil loose and dont remember what wires go where

Posted by dannyandtabi on

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Anonymous

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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.

Posted on Aug 28, 2010

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What could be causing my 2009 Jeep Wrangler to "miss", especially at lower rpm's?

Use a scan tool to be sure that there is no issue with the check engine light. If you get a scan tool that shows error codes in the 300 range then it is a misfire. Some causes of this are low fuel pressure, bad coils, etc.
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I check the pick up it was good I dont think both coils would be bad

I had a 88 Buick SkyHawk 2.0L 5speed it stranded me in town thank god when i got it home did a tune up(plugs, wires, cap, and rotor) and fired right up. The timing belt had snapped 10k miles ago.
I also dont think it had two separate coils.
So just check the simple things first, maybe there worn, carboned.
Have code scanned on your OBD I vehicle. there is also a MIL blink trick, but i dont remember which terminals on the ALDL to jump. DONT JUMP THEM without checking first you may FRY THE ECU. THe secondary coil energizes the primary and fires the coil if either one burnout the coil is bad and will not work. so check the resistance on both coils.
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My dad took the coils off of his 76 cb 750 honda and dont remember how they hook up to the spark plugs theres two coils 4 plug wires. help!

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the other feeds 2&3, again doesnt matter which.
The coils fire on each stroke, compression and exhaust,
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Make certain there are no blown fuses to the engine controller or ignition system. Is there spark from ignition coil when engine is cranked over? If not, test your distributer pickup coil. If the pickup coil or ignition module are not functioning, you will not have injector pulse or secondary spark.
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Wont start left out in the rain

Check the main fuse, it may have blown
Check that on/off switch hasn't shorted out, when you hit the start button you should be sending power to your solenoid which sends power to the starter motor.

If your stator/ rotor cover seal is bad, water may have got on the stator and corroded.
If it filled with water then its shorted out.
Start at the battery with a test light and work your way through your wires to see where you loose power.
For example: If you dont have spark, unplug your coil and see if you have power to the coil, if you do have power to the coil then the coil is bad.
If you dont have power to the coil, then the coil is probably good once you get power restored to it.
Trace the wire back to see where it looses power, it could be in the ignition switch.
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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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Replacing thermostat

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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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