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Wierd problem with 5th gen VFR
Rode fine for about 8km, got to a red light, died. Tried to start and only got a click from under the seat. Pushed it off the road onto the sidewalk, waited a few minutes, clicked the starter again and it started idled and revved fine. As soon as I moved it about 5 feet and got ready to get on the road it died again. MotoLimo towed it home for me, when I got home I hooked it up to a multimeter which read 17.5-18.3v with the bike turned off. While cranking the starter it would drop to 15 then go back up to 17.5-18.3v. Hoping that my multimeter is not broken, ideas?
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
silverbullet132
Rode fine for about 8km, got to a red light, died. Tried to start and only got a click from under the seat. Pushed it off the road onto the sidewalk, waited a few minutes, clicked the starter again and it started idled and revved fine. As soon as I moved it about 5 feet and got ready to get on the road it died again. MotoLimo towed it home for me, when I got home I hooked it up to a multimeter which read 17.5-18.3v with the bike turned off. While cranking the starter it would drop to 15 then go back up to 17.5-18.3v. Hoping that my multimeter is not broken, ideas?
your multi-meter must be busted - cause 15 volts while cranking is not right (neither is 18 when bike is off).
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Re: Wierd problem with 5th gen VFR
Common problem with all VFR's....Regulator/rectifier...
Read this thread. It will help you out.
http://www.gtamotorcycle.com/vbforum...rical-Problems
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
gamma1
Thanks, will check that out. Will also try multiple multi-meters. Any chance it is the tipover sensor? As it did start again after sitting for a few minutes. What about the dying after moving a few feet? Would that all be the rectifier?
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Re: Wierd problem with 5th gen VFR
Replace the battery in your meter. Low battery could potentially give high readings.
IIRC the '99 VFR got a bigger heat sink, for the reg/rec.
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
Rob MacLennan
Replace the battery in your meter. Low battery could potentially give high readings.
IIRC the '99 VFR got a bigger heat sink, for the reg/rec.
Sounds like a good idea...tried another meter and it read 19.5-20.5v. How much does a R/R typically go for? $150?
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Re: Wierd problem with 5th gen VFR
R/R problems are not uncommon on the VFR. There are all sorts of solutions out there; OEM replacement, OEM upgrade, new wiring harness, R/R upgrade.
I went with the R/R upgrade and removed the connectors from the wiring harness.
I used the SHINDENGEN FH0122AA R/R. It's still a shunt type regulator, but the MOSFET switching means it generates much less heat in the R/R. It also has much improved regulation.
If you're handy with a soldering iron, you can install one of these for a little under $150.
I had the over-Voltage issue on one of my bikes, batteries are quickly damaged by overcharging.
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
VFR.CBR
I used the SHINDENGEN FH0122AA R/R. It's still a shunt type regulator,
You know this for certain? I have one for my XX but have been hesitant to install it as nobody was able to answer that question with any certainty and I was worried about high transient voltages in the alternator windings.
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
VFR.CBR
R/R problems are not uncommon on the VFR. There are all sorts of solutions out there; OEM replacement, OEM upgrade, new wiring harness, R/R upgrade.
I went with the R/R upgrade and removed the connectors from the wiring harness.
I used the SHINDENGEN FH0122AA R/R. It's still a shunt type regulator, but the MOSFET switching means it generates much less heat in the R/R. It also has much improved regulation.
If you're handy with a soldering iron, you can install one of these for a little under $150.
I had the over-Voltage issue on one of my bikes, batteries are quickly damaged by overcharging.
Was reading about that one.
Would a dead reg cause it to die then be fine a few mins later? Or start then die very shortly after I get moving?
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Re: Wierd problem with 5th gen VFR
Yes, the regulator can be the root cause of the bike dying, then restart a few minutes later. Unfortunately, it means the battery is probably cooked. The computer will have shut-down on over Voltage. The cool down period allowed the battery Voltage to drop a bit, the restart pulled it down a bit more, allowing the bike to run. But, probably only for a short time till the problem arose again.
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
shewie
You know this for certain? I have one for my XX but have been hesitant to install it as nobody was able to answer that question with any certainty and I was worried about high transient voltages in the alternator windings.
The FH0122AA is a shunt type regulator, as opposed to a series style regulator. You will not see high Voltages on the windings; 15 Volts max.
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
VFR.CBR
The FH0122AA is a shunt type regulator, as opposed to a series style regulator. You will not see high Voltages on the windings; 15 Volts max.
Where can I get one? Is it possible to buy it local?
Quote:
Originally Posted by
VFR.CBR
Yes, the regulator can be the root cause of the bike dying, then restart a few minutes later. Unfortunately, it means the battery is probably cooked.
**** the battery is a week old...
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
silverbullet132
Where can I get one? Is it possible to buy it local?
I have one kit left. I brought them in from the US. There maybe shops here selling them, but I couldn't find any when I was looking for them.
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Re: Wierd problem with 5th gen VFR
Sounds like you replaced a battery before figuring out why the last one went bad.
Quote:
Originally Posted by
silverbullet132
Where can I get one? Is it possible to buy it local?
**** the battery is a week old...
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
toastman
Sounds like you replaced a battery before figuring out why the last one went bad.
My mechanic did that, hopefully he covers it under warranty. Problem is the bike was/is my only mode of transport :( hopefully a new battery + R/R will fix this problem.
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Re: Wierd problem with 5th gen VFR
For all your upgraded Eletrical needs:
http://www.wiremybike.com/index.php?...eb1b760a2ae2aa
I got an upgraded Reg/Rec and VFR harness (VFRness) for my 5th gen. Good mod for our bikes.
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Re: Wierd problem with 5th gen VFR
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
silverbullet132
Is this the wiring you have now? Did you remove any tape or covering to expose the char & corrosion?
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Re: Wierd problem with 5th gen VFR
yeah removed some tape on all of it
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Re: Wierd problem with 5th gen VFR
Another common problem. I would recommend a vfrness from tightwad over on vfrdiscussion. By all accounts it works and no more issues with burnt out wires. Tell him Gary sent ya :-)
oops sorry slowbird lol
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
gcrouse
Another common problem. I would recommend a vfrness from tightwad over on vfrdiscussion. By all accounts it works and no more issues with burnt out wires. Tell him Gary sent ya :-)
oops sorry slowbird lol
Ahh! Should I still look at replacing the stator and or R/R or just get a vfrness?
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
VFR.CBR
The FH0122AA is a shunt type regulator,
That was what I was looking for. I haven't been able to find a schematic. Thanks.
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Re: Wierd problem with 5th gen VFR
so..need to know what to order
stator and vfrness or reg/rec and vfrness?
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Re: Wierd problem with 5th gen VFR
Update: Re-soldered the connections and replaced a blown fuse, now I only get a click from under the seat when I hit the starter. New battery time?
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
silverbullet132
Update: Re-soldered the connections and replaced a blown fuse, now I only get a click from under the seat when I hit the starter. New battery time?
Throw the battery on a trickle charger first and see if it's recoverable, once it's charged up try starting it.
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Re: Wierd problem with 5th gen VFR
Battery is reading 17.6v sitting on my desk, swapped for one that reads 14.5v and the clicking noise is still there
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Re: Wierd problem with 5th gen VFR
Whereabouts are you located? I've got something that might help you; a 1998-2000 VFR800 service manual.
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
Rob MacLennan
Whereabouts are you located? I've got something that might help you; a 1998-2000 VFR800 service manual.
PM'd
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Re: Wierd problem with 5th gen VFR
Need someone to have a look at it...I am having absolutely 0 luck. Going to try to get a new battery tomorrow.
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Re: Wierd problem with 5th gen VFR
Does anything turn on when the key is ON? Lights?
Have you attempted a Bump start? All fuses are ok?
Quote:
Originally Posted by
silverbullet132
so..need to know what to order
stator and vfrness or reg/rec and vfrness?
Get the Reg/Rec and the harness.
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
silverbullet132
Going to try to get a new battery tomorrow.
The bike will start with the new battery. Keep a Voltmeter on the battery, when the Voltage gets over 15 Volts, turn off the engine. The Voltage may stay below 15 Volts at idle, take the engine to 4~5000 RPM.
Disconnect the R/R at the red/black connector. Start the engine. Note the battery Voltage.
Your R/R has burned out one or more of the SCRs and can no longer regulate the output.
http://www.wdgah.net/VFR_RRFail.htm
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
slowbird
Does anything turn on when the key is ON? Lights?
Have you attempted a Bump start? All fuses are ok?
Get the Reg/Rec and the harness.
All lights turn on signals work etc. Have not tried bump starting, and all fuses look ok.
Quote:
Originally Posted by
VFR.CBR
The bike will start with the new battery. Keep a Voltmeter on the battery, when the Voltage gets over 15 Volts, turn off the engine. The Voltage may stay below 15 Volts at idle, take the engine to 4~5000 RPM.
Disconnect the R/R at the red/black connector. Start the engine. Note the battery Voltage.
Your R/R has burned out one or more of the SCRs and can no longer regulate the output.
http://www.wdgah.net/VFR_RRFail.htm
Ah. So new battery R/R and vfrness? Anywhere more local then wiremybike that would have a vfrness?
I should also note that jump starting it did not work.
Edit: Just ordered VFRness, stator hardwire kit, and new R/R connectors (the one on my harness side was melted)
EditEdit: Swapped the battery with the one from my v45 sabre (same voltage readings, starts the sabre fine) and still only get the click.
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Re: Wierd problem with 5th gen VFR
Changed the battery in my multimeter, it now reads 0.7-0.8 ohms on the 3 wires coming from the stator and 0 continuity on all 3. Battery also reads 12.5v now instead of the 17.5v it was reading before.
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Re: Wierd problem with 5th gen VFR
your still just getting the click?
Quote:
Originally Posted by
silverbullet132
Changed the battery in my multimeter, it now reads 0.7-0.8 ohms on the 3 wires coming from the stator and 0 continuity on all 3. Battery also reads 12.5v now instead of the 17.5v it was reading before.
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
gcrouse
your still just getting the click?
Have not hooked the R/R back up had to undo the soldering to do some testing:
-Battery reads 12.75v
-Leak tested, meter reads 0.8mA
-The harness side of the R/R connector positives read 12.75v (positive lead on the red/white and common lead on the frame)
-Continuity between the harness side of the R/R connector negatives and grounded on the frame
This at least shows me the stator is ok for now, and the harness is ok. New R/R time while I wait for my vfrness and other parts to arrive
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Re: Wierd problem with 5th gen VFR
Installed the FH0122AA with VFR.CBR's help, and diagnosed a bad starter motor (has a dead spot) so now on the hunt for a new one!
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Re: Wierd problem with 5th gen VFR
Bad started motor or starter clutch?
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
slowbird
Bad started motor or starter clutch?
Starter motor, we would put bike into a high gear and rock the rear wheel back and forth until we felt the crank turn over then put it into neutral and try starting it. Sometimes it would work, sometimes would not.
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Re: Wierd problem with 5th gen VFR
Quote:
Originally Posted by
silverbullet132
Starter motor, we would put bike into a high gear and rock the rear wheel back and forth until we felt the crank turn over then put it into neutral and try starting it. Sometimes it would work, sometimes would not.
...and when you would try starting it would it go: *clack clack clack* ?
Or just a single click?
A common starting issue is caused by the starter Clutch and not the motor itself.
http://vfrworld.com/forums/mechanics...-pictures.html
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Re: Wierd problem with 5th gen VFR