Electrical problems
- Thread starter NobleMastiff
- Start date
Ray
Well-Known Member
Agrees with Mobsta , Get the scooter out and ride it, and until you get you a knew Battery ( I just a got a New Interstate battery, cranks my scooter like "WOW"!) , parks it on a downhill slope. But just for the record and from what I have heard, read, kinda guessed at too, my weak battery might have been the beginning of the end of my Ech. $112 bucks , new Interstate battery. $529 for the Wire plus conversion from JakeAlways keep your battery on a tender.these dogs need a good battery.riding 3 miles is not enough to charge the battery.
Ray
NobleMastiff
Member
Okay,
If you examine the diagram you'll notice that at pin A-1 (output) there is a device known as a MOV (metal oxide varistor) which provides protection for the circut. This easily could have gone south and unfortunately I found that it is embedded within the controller and impossible to get to. There is someting I can check to isolate it and I'll try that after I get some chow.......till then !
If you examine the diagram you'll notice that at pin A-1 (output) there is a device known as a MOV (metal oxide varistor) which provides protection for the circut. This easily could have gone south and unfortunately I found that it is embedded within the controller and impossible to get to. There is someting I can check to isolate it and I'll try that after I get some chow.......till then !
NobleMastiff
Member
HOLY CRAP......after figuring out the MOV (previous post) thought I'd recheck battery, starter, solinoid etc...put my jumper back on the solinoid (green wire off) and bam !! It's what's taking out the EHC. The MOV sensed the high load and shut down the system like it should. Need to isolate solinoid from starter somehow ? I'm sure I'm on the right track here. Anyone know how to isolate solinoid from starter ?
BigDogBro1
Made in the USA
:bang:What!!!!!! Are you F-ing with me!
You say..
HOLY CRAP......after figuring out the MOV (previous post) thought I'd recheck battery, starter, solinoid etc...put my jumper back on the solinoid (green wire off) and bam !! It's what's taking out the EHC. The MOV sensed the high load and shut down the system like it should.
WTF!!! :bang: How can the internal EHC Fuse or MOV do anything when your GREEN harness solenoid wire is disconnected?
Leave that GREEN harness wire disconnected and try to start the bike by jumping the solenoid terminal directly to the battery + post for a second with a section of wire. IS IT RUNNING?
If it really is a MOV, it would only be used to block the starter solenoid coil BACK-EMF transient spike voltage when the starter solenoid is released so it won't harm the EHC output.
I think MOV's sense over voltage not over current so your theory doesn't work.
So you REALLY think the battery or starter/solenoid is okay?
Re-read my previous post on connecting up a relay for the starter solenoid GREEN wire.
As a test and possible fix:
Connect the GREEN solenoid wire to a 12v cheap $5 30Amp fog light relay coil and the other side of the coil to GND. Push the start button and see if the relay closes and opens with start button. If it does then connect one side of the relays N.O. contact to 12v battery (+) and the other side to the starter solenoid for a try.
Good Luck.....
You say..
HOLY CRAP......after figuring out the MOV (previous post) thought I'd recheck battery, starter, solinoid etc...put my jumper back on the solinoid (green wire off) and bam !! It's what's taking out the EHC. The MOV sensed the high load and shut down the system like it should.
WTF!!! :bang: How can the internal EHC Fuse or MOV do anything when your GREEN harness solenoid wire is disconnected?
Leave that GREEN harness wire disconnected and try to start the bike by jumping the solenoid terminal directly to the battery + post for a second with a section of wire. IS IT RUNNING?
If it really is a MOV, it would only be used to block the starter solenoid coil BACK-EMF transient spike voltage when the starter solenoid is released so it won't harm the EHC output.
I think MOV's sense over voltage not over current so your theory doesn't work.
So you REALLY think the battery or starter/solenoid is okay?
Re-read my previous post on connecting up a relay for the starter solenoid GREEN wire.
As a test and possible fix:
Connect the GREEN solenoid wire to a 12v cheap $5 30Amp fog light relay coil and the other side of the coil to GND. Push the start button and see if the relay closes and opens with start button. If it does then connect one side of the relays N.O. contact to 12v battery (+) and the other side to the starter solenoid for a try.
Good Luck.....
Last edited:
DRBarnhart
Insert title here...
There's two big wires hooked to the solenoid, one from the battery and one from the starter. If you disconnect them the solenoid will be isolated from the starter except for their grounds.
Here's a "how to" on checking the solenoid...
http://www.bigdogbiker.com/forums/how/11356-how-check-your-starter-solenoid.html
Dennis