Relay burning out and fuse blowing

[glenwill]

1.) The vendor admitted it was not an SH-775. The email response is in teh thread.
2.) If you have an AC clamp meter you can see the change in current flow in the stator as you change loads liek headlamps.

This was a good excuse for me to by a clamp meter, so I found an inexpensive one on Amazon that was highly rated.

I clamped it around one of the stator leads with the bike running, and with the headlights off, it showed 6.4 amps or so. When I turn the headlights on (with high beams on) it jumped to 10.3 or so. Shutoff the headlights, and it goes back to 6.4 amps. I did this back and forth a few times, with consistent results.

I assume this confirms it is a series R/R, just not OEM?

Glen

 

[posplayr]

This was a good excuse for me to by a clamp meter, so I found an inexpensive one on Amazon that was highly rated.

I clamped it around one of the stator leads with the bike running, and with the headlights off, it showed 6.4 amps or so. When I turn the headlights on (with high beams on) it jumped to 10.3 or so. Shutoff the headlights, and it goes back to 6.4 amps. I did this back and forth a few times, with consistent results.



I assume this confirms it is a series R/R, just not OEM?

Glen

Well not knowing what meter, what R/R and having to correct the units Amps RMS(so the meter setting is in doubt) it appears to follow what you expect from a Series.

 

[Guest]

Just experienced the same symptoms

Just experienced the same symptoms

I know this is an old thread, but thought I should respond.

I too installed the EB fuse panel and system relay mod. It's been working fine for almost 2 years now. Saturday both the fuse and relay blew and I lost all power. I didn't even have the option of running off of battery as was mentioned in one of the posts. It was just an immediate shut off of the bike.

I've replaced the relay and fuse and have not had any issue as of yet. I'm still running the factory R/R and need to run through the charging health tests and see if maybe there could have been a voltage surge. I also need to replace the R/R. Time to start looking for one.

 

[posplayr]

I know this is an old thread, but thought I should respond.

I too installed the EB fuse panel and system relay mod. It's been working fine for almost 2 years now. Saturday both the fuse and relay blew and I lost all power. I didn't even have the option of running off of battery as was mentioned in one of the posts. It was just an immediate shut off of the bike.

I've replaced the relay and fuse and have not had any issue as of yet. I'm still running the factory R/R and need to run through the charging health tests and see if maybe there could have been a voltage surge. I also need to replace the R/R. Time to start looking for one.

You said relay blew; what does that mean? Coil or contact side?

If the relay is protected (which it shoudl be) there is no way to blow the contacts. The coil can only be blow with too much voltage which would imply your charging system is going open loop.

You need to get a voltmeter and do the quick test ; make sure you are not overcharging.

Also could be your R/R is going out and blowing your main fuse.

It would be a good time to change out the R/R. There is a firesale going on on Compufire R/Rs. You could be a guinea pig and test one out.

 

[Redman]

/////////////////QUOTE
There is a firesale going on on Compufire R/Rs.
//////////////////ENDQUOTE

Do tell more....

 

[posplayr]

/////////////////QUOTE
There is a firesale going on on Compufire R/Rs.
//////////////////ENDQUOTE

Do tell more....

https://www.thegsresources.com/_for...-Compu-Fire-40A-55402-3-Phase-Charging-System

 

[Guest]

Thanks Posplayr. Measuring between the 85 and 86 terminals show open instead of the 80 ohms that a new relay measures.

I'll look into the Compufires.