Melted Grounds, Reversed Polarity, No Spark Need Help

[dalelemons4]

So here is my set up
1980 electronic ignition, chopped harness

Rec/Reg, stock ignition, stock coil, small battery, headlight taillight, kick start only

Ok so i reversed the polarities on accident while trying to charge my bike.I melted a few ground wires and burned up some other stuff i guess.

luckily i have a spare bike with spare parts from the same year.

I have replaced: Battery, coil, rec/reg, re wired some burnt grounds, ignition.

I am almost positive that all of the parts from the other (parts) bike work fine and are good.

When i turn the key the headlight and tail light shine bright. im getting power to the coil and everything seems right but im not getting any spark.

Oh and i was on here before and you guys helped me build my bike. I forgot my Username and Password so i had to start new. I really appreciate any help in advance

If there is any other info that would help you help me....let me know

thanks again

 

[Rgconner]

You did not mention replacing the condenser/capacitor.

I would suspect you would blow that out reversing the polarity, most capacitors don't like reversed polarity.

 

[dalelemons4]

awesome i will try that tomorrow when i have access to the part. thank you and ill update...

 

[xskid]

If your bike is an 80 it should have a tci (black) box. You shouldn't have any condeners.

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[hmusket]

If he is referring to the condensors for the points, you might have a hard time finding them on your bike. Are you running the stock TCI box? If so try switching with the one from the parts bike.

 

[Rgconner]

Yes, the TCI would not like reverse polarity either.

I have an XS2, so was not thinking about the fact they ditched the points.

 

[dalelemons4]

F me I'm out there going... Capacitor? Wtf is there a capacitor . Lol. Ok so no capacitor. 1980. I'm not too keen with a voltage meter but I've been trying to learn how to test each of the components I have. Bit of a rube I am

 

[CDNTX650]

Ill guess toasted black box.

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[dalelemons4]

I did replace the box with another one that was working on the last bike it was on. im going to go through the bike more thoroughly tonight and see if i cant find another reason why its not getting spark

again ive done so far:
New spark plugs
Replaced coil
replaced re/reg
replaced ignition box
rewired burned / melted grounds
new battery

headlight and tail light work, the power wire to the coil was reading like 10 volts as well so the power is getting to the coil i assume

 

[CDNTX650]

10v is dead battery....or your connections need alot of cleaning. Tci doesnt like low voltage

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[TwoManyXS1Bs]

Also check continuity/resistance of the TCI pickup coil mounted on the stator cover...

 

[dalelemons4]

Ok i put the battery on the tender and when i get back from work ill try it again. Im not sure how to check the continuity / resistance of the TCI pickup coil on the stator cover. Just remove the stator cover and test the hot lead? Im so bad at electrical but after this hopefully i will learn a thing or two.
One thing learned that ill make sure to never do again, hook up the charging cables backwards...

 

[XSLeo]

The coil needs power, the TCI box needs power to. The red/white wire on the TCI box, and the red/white wire at the coil, is where you hook the battery power after a engine stop switch.
Look in the XS650 tech section. Look under the Electrical section, find the topic "some Wiring Diagrams.
I like #4. It starts with the basic points ignition and separate reg and rec. It has the TCI and the combo reg/rec in boxes. Just swap the boxes to match what you have.
Leo

 

[Dusty]

I would be checking ALL my wires to see if any melted together,and making sure I did not have a dead short.

 

[dalelemons4]

i think that im going to go through this thing and rewire this whole damn thing.

 

[XSLeo]

Your repair manual has the procedure for testing the pick ups, as well as most every electrical device.
Leo