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RPMs increase and decrease with blinker?
- Thread starter Kentman7
- Start date
Yes. The engine does throttle up with either the front or rear brake engaged.
I’ve been combing through the service manuals for any type of wiring diagram. Not too much luck. I don’t know what I’m looking for, so it’s difficult.
that’s the thing. All the wiring is in great shape. Nothing has stuck out to me. Obviously I’m missing something.
can you post videos to this forum? Or just pictures?
Yes. When I engage any of the brakes, blinkers, high beams etc. the engine RPMs go up without engaging the throttle. As far as the blinkers ago, when the blinker flashes on the RPMs go up, I’m with the blinker flashes off the RPMs decrease.
At no point does the throttle on this bike work. At no point does the throttle increase the RPMs, No matter if the brake system is engaged or not.
The bike will idle perfectly.
^^^^^^
Me Too! .
Looking forward to seeing your results.
Is the charging system all stock still? Maybe any load on the electrical system causes the voltage regulator to let too much current through overloading the system. It is common for the regulatorsto fail, but usually results in a cooked stator and overcharged battery, not what you're describing.
Find the grounds and clean them. pg 224 of the FSM Wires amy also be damaged. There's a section in some harnesses used on GS bikes that have several wires spliced roughly with steel ( by now rusted ) clips.
Also is the airbox filter and exhaust installed? not directly related to the weird electrical issue but a much needed reality.
manual is here https://gsarchive.bwringer.com/
the wiring diagram is inside and yes they are had to follow but it seems the bike is using the signals presumably sufficient ground when the circuit is closed.
How about if you press the horn button
Do the engine RPMs go up?
(The black and white wiring diagram makes my eyes hurt,
but I think we are chasing two separate issues.)
Why is there what I would call a "jumper wire" between the headlight ground wire and the front turn signal lights ground wire, since those two ground circuits already meet up after they pick up the ground side of the horn switch?
Interestingly enough the R/R and the Ignitor box are spliced into this same ground wire!
AND this ground wire is spliced into a wire, of which EACH end goes to a ground!
I gotta rest my eyes, but one more question:
What is the difference between a ground symbol where the little dash lines of the ground signal form a triangle and those that form a rectangle?
Luckily, when I purchased the bike, the previous owner had an extra one laying around and gave it to me. It was in the bag with the tile and registration.
You were right!
thank you for your help.
I really appreciate everyone’s help in this issue. Thank you all!
So glad you got it running!!
I think what was happening was when I tried to throttle up the bike, the coils and spark plugs weren’t receiving enough voltage to increase the RPMs. But, at the same time, the bike was still getting adequate fuel and air through the carb.
When I engaged the brakes or the blinkers the voltage would increase to my coils and spark plugs and cause RPMs to increase and the engine to rev up ( or in case of the blinkers, rev up and down).
But it wasn’t just the coils and spark plugs receiving the extra voltage that increased my RPMs, it was also because my carb throttle valves were adjusted to idle in high RPMs.
so, when the voltage increased, the system had enough fuel and air mixture to increase the RPMs.
does that make sense?
No.................
