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Here is the schematic,https://www.thisoldtractor.com/guzzi007/schematics/2013_V7_Series.gifIt's possibly an intermittent short in one of the lamps, most likely wiring at the rear.The V7 flashing is done by the dash (4), it doesn't have a flasher relay like the older bikes but the fast flashing is trying to alert you about a problem. I don't know if its trying to say I have a lamp out or I have a short, it would be easy to check the lamp out alarm by simply removing a bulb.Actually if you notice it again pull over and see if the lamps are flashing front and back, what happens if you select the other direction, I assume that side will be ok.-----------UpdateMy V7III flashes fast if a lamp is disconnected or burnt out.Check the lamp holders for corrosion.Electrical connections at the rear.I'm a big fan of Vaseline to prevent corrosion, wipe some over the lamp contacts, connector pins.
Ok, I'm still having the issue after putting vaseline on the bulb connectors for all 4 turn lights.Last night I noticed the following observations:- The green turn signal flashes intermittently or doesn't flash at all. The bulbs don't work if the green light isn't flashing- While this is hard to confirm, it seems like the problem happened more at higher RPM's but this could be a false positive. My observation was, if I put the signal on at idle it was working, as I sped up to over 5,000 rpm, it would start having issue. Shifting to 2nd gear caused them to work well and they would get wonky again at a higher rpm. However, this was negated later on when at idle they did act wonky for a few seconds but it does seem to happen more at higher rpm/speeds.Any other thoughts on what I can look into next?
Could be as simple as a bulb starting to go bad, a loose connection, or some corrosion on the plug connectors. I'd take them out, clean up, put some Vaseline or dielectric grease and see how things change.
Does it do this on the left and right side?Have you seen a repeat of the fast flashing, was the front and rear both working.
Does it do this on the left and right side?Have you seen a repeat of the fast flashing, was the front and rear both working.Its possible there is a loose connection opening up at higher rev range/Look at the schematic and find all the connectors it shows.
Frank, answer Kiwi_Roy's questions to get more help.Fast flashing is a feature, not a bug. It's to alert the rider that something is wrong. Typically (But not always.) it means a bad turn signal light bulb or wiring problem to a bulb. So when you see fast flashing, usually one bulb is not working. Do you see that one turn signal bulb is not working when the green light flashes rapidly? If so, which one? Is it always the same one? Have you in the past replaced any of the turn signal bulbs or turn signal assemblies?You say that sometimes you see no flashing at all. And you mentioned that the issue comes and goes (sometimes) with changes in engine speed. It could be that the vibration of the engine is affecting an intermittent connection. One easy thing to try: While the key switch is "on" but engine is not running, turn on the left turn signals and try rapping on the instrument panel with your knuckles to see if that produces or stops the issue. Repeat with the right signals.
Is it always on the right or left?If its happening on both sides I would be suspicious of common wiring like a ground open at the front or rear
It seems to happen on both sides. Once the issue starts happening, it doesn't matter if I flick the switch to the right or left signal , it won't work.Is there a chance it could be the indicator switch on the handlebars?
Yes, it could be the switch if for example its not grounded properly, that would be a common fault between left and right however I would be surprised if that made the Idiot light flash at a different rate.I don't see that you have noticed a front or rear lamp out, both ends each go to a common ground pointIt could also be the multi pin connector at the dash.Does the bike spend much time out in the weather, that's where you often see corrosion problems at connectors.Do the flashers ever start to work without the switch turned?
Roy, thanks for posting the electrical diagram. It looks like the turn signal switch (Item #10, top right) works by grounding either the left or right control wire (light blue and red wires) for the turn signal through the dark blue wire to ground. Frank (If you are comfortable with this), I would try to find the 9 pin connector (Under the tank?) for the harness that feeds the left handlebar switch. Take apart (disconnect) the connector and look at the pins for signs of corrosion. Sometimes just sliding the connector apart then together a few times is enough to make a good connection. Give a light tug on the dark blue wire at both the male and female connectors to make sure it's securely bonded to it's pin. Roy, I'm not familiar with the newer Guzzi's. Would the connector be a white Molex type similar to this? (Click on pic for full size. It shows both the female and male part of the connector.)Secondly Frank, follow the dark blue wire from the connector to it's grounding point on the frame. Assuming the wire end is terminated at a circular lug. remove the hold down screw, clean the lug and the frame with scotchbrite or sandpaper and reassemble everything.
I thought you would be well fixed by now.If you look at the direction switch you will see that the switch indicates one way or another by grounding the Red or the Blue wire.The ground must be good for this to work so you can trace out the ground pointing add a temporary jumper.On the V7III the handle bars are not grounded., they are rubber mounted but under the left hand side there are a couple of bolts that lend themselves to a jumper.
If its happening on both sides I would be suspicious of common wiring like a ground open at the front or rearhttps://www.thisoldtractor.com/guzzi007/schematics/2013_V7_Series.gifSometimes what seems like a simple system can be the hardest to troubleshoot