Hooked up batter cables backwards, what did I fry?

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Priest Lk Dweller

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My 1993 Force 70 hp I inadvertantly hooked up my battery cables backwards. I'm sure I fried my rectifier/regulator. Did I fry my stator also? With new regulator installed I still do not get any battery charge. My tach works once it gets up to 1500 to 2000 rpm.
Thanks for any help.
 
fucawi

fucawi

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Re: Hooked up batter cables backwards, what did I fry?

probably only wrecked the rectifier/regulator..you say no charge ? do you mean after you fitted a new one ? does it have a circuit breaker that has popped?...To check your sttor coil ..disconnect it ..measure resistance ( continuity) and you should get about 16v when the engine is running ..if thats fine its the rectifier or trip fuse.
A short in the rectifier could be holding the output down so the tacho does not work right.
 
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Re: Hooked up batter cables backwards, what did I fry?

Yes, I put in a new CDI rectifier/regulator. No charge. The problem with the tach is with the new regulator. I will check the output of the stator.
Do I check it across both yellow wires or one yellow wire to ground?
Thanks
 
fucawi

fucawi

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Re: Hooked up batter cables backwards, what did I fry?

no the yellow wires disconnected...check across for continuity and from one to earth to see if its shorted to earth
 
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pnwboat

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Re: Hooked up batter cables backwards, what did I fry?

Do you have a picture of the replacement regulator set up?
 
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Re: Hooked up batter cables backwards, what did I fry?

pnwboat said:
Do you have a picture of the replacement regulator set up?

I checked the ohms from my stator. It checked good. I then checked the (AC) voltage from my stator and only got 3 volts. I then checked the (DC) voltage from my regulator/rectifier and only got .5 volts.
Looks like I found my problem. DARN!! Anybody got a Honda 4 stroke 125 for a pontoon for sale?
Thanks for all of your help. I'll let you know if a new stator fixes the problem.
Click to expand...
 
fucawi

fucawi

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Re: Hooked up batter cables backwards, what did I fry?

what revs did you have the motor at ? If you were at 3000 + you should get 16v ....did you check if its shorted to earth ...? Still as you say you found your problem IF YOU HAD THE REVS ON .
 
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Re: Hooked up batter cables backwards, what did I fry?

I did run the r's up. Did a slow rise from idle to 3500. The volts (AC) never moved past 3.
Installed new stator yesterday. All works as advertised. No hic-ups with the tach any more either.
found a melted coil in the old one once I got it out. Those flywheels are a pain to get off and back on.
Thanks for all the info. This is a good forum for do-it-yourselfers!!
 
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