Hi all. I was having problems with my starter relay on my 75 90S . My mechanic rebuilt the relay but it failed again. I noticed that Boxer2Valve was showing a replacement relay thad no moving parts. Anyone have experience with one?
Ted Cymbaly
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Re: [R90SWORLDNET] electrical troubleshooting for an R90S
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"Robert Fleischer dba Fleischer's Service"
Re: [R90SWORLDNET] electrical troubleshooting for an R90S
Not addressing your primary question…but….is the starter motor in this bike a stock Bosch?...or, is it a Valeo or other starter?
There are definite problems, not always, but relatively common, for the stock starter relay not to last long, sometimes even to fry the contacts, with the Valeo, etc….due to the larger current drain and back-voltage generated. That's addressed on my website…but, I was curious about your problem.
Snowbum
There are definite problems, not always, but relatively common, for the stock starter relay not to last long, sometimes even to fry the contacts, with the Valeo, etc….due to the larger current drain and back-voltage generated. That's addressed on my website…but, I was curious about your problem.
Snowbum
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"Mac Kirkpatrick"
electrical troubleshooting for an R90S
Reference electrics in general; these bikes are now over 45 years old and
the electric wiring gives out over time. The wires can look fine but inside
the looms it can generally not be so good.
I recommend replacing the two wires to the battery and I use thicker ones.
Burnishing ALL the connection points, grounds, bulb sockets, horn, etc.
and adding a thin coat of NO-OX-ID A Special helps to prevent corrosion and
promote conductivity; Di-Electric grease does NOT promote conductivity but
does prevent corrosion.
When I do this everything works better; the lights are brighter, the
starter spins better, the horn is loud and distinct, but it also depends on
what kind of life and what mx was performed on the bike over its life,
through how many owners?
And I am glad I replaced my wiring harness, it was just due. Everything now
works just like new.
Mac Kirkpatrick
Glenmoore, PA
"After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
the electric wiring gives out over time. The wires can look fine but inside
the looms it can generally not be so good.
I recommend replacing the two wires to the battery and I use thicker ones.
Burnishing ALL the connection points, grounds, bulb sockets, horn, etc.
and adding a thin coat of NO-OX-ID A Special helps to prevent corrosion and
promote conductivity; Di-Electric grease does NOT promote conductivity but
does prevent corrosion.
When I do this everything works better; the lights are brighter, the
starter spins better, the horn is loud and distinct, but it also depends on
what kind of life and what mx was performed on the bike over its life,
through how many owners?
And I am glad I replaced my wiring harness, it was just due. Everything now
works just like new.
Mac Kirkpatrick
Glenmoore, PA
"After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue
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"Donald Walter"
Re: [R90SWORLDNET] electrical troubleshooting for an R90S
Thanks for sharing these ideas. Hadn’t heard of No-Ox-ID A Special and just ordered some. Had heard that di-electric grease was an insulator but didn’t know there was a conductive alternative.
Interesting how many odd and hard to diagnose electrical issues relate back to insufficient grounding. It’s often the problem in what I term “the eternal curse of trailer lights”, especially on open trailers. I now run ground wires from the vehicle connector’s ground directly to the trailer lights and don’t rely on the often unreliable grounding effect from grounds near the lights back through the metal trailer components to the vehicle ground. It’s cut my curse count back significantly.
Interesting how many odd and hard to diagnose electrical issues relate back to insufficient grounding. It’s often the problem in what I term “the eternal curse of trailer lights”, especially on open trailers. I now run ground wires from the vehicle connector’s ground directly to the trailer lights and don’t rely on the often unreliable grounding effect from grounds near the lights back through the metal trailer components to the vehicle ground. It’s cut my curse count back significantly.
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"kellygramsey"
Re: electrical troubleshooting for an R90S
I've used the $17.95 relay from motoelekt.com on several airheads over the years and have never had one fail. They are on their web-site under the "chassis" section. Rick Jones is the owner and a nice guy to deal with, he is my go to guy for most airhead electrical items.
Kelly Ramsey
Kelly Ramsey