Stator problem ???

This is my first post after 1 year on web site & this site Rocks !
1998 vfr with 17K miles. always in garage. purchased with 12k on it & had to put in new battery @ that time. I did the CPU cooling fan also after reading about this weak link on such a great bike ! O.K. now my issue. I stopped to get gas & bike would not restart. Nothing , my son came to my help with jumpers cables but no luck ! BTW putting jumpers on my battery only caused my main fuse 30A to blow. I have not started to disassemble the bike ( to hot out) so tonight I have somthing to do. Based upon everything posted on this issue it seams to me my stator died. Please post thoughts & I will report back after everything is apart.Thanks

 

Yes all wires appear in good shape no burnt ends etc. My son ( honda car teck.) is coming over tonight to help solve issue. BTW stator checked out ok for resistance ( unless I did the test wrong ) I will update

 

Just a warning, the stator can test fine for resistance but be bad. You have to check how many volts it is putting out. Should be around 70-75V around 5,000 rpms. Check your manual to be sure. I just went through this and had to put in a new stator.

BZ

 

I second that Bubba,

New stator installed 3 weeks ago...
Ohm readings checked out within range.
Voltage reading were poop... almost nothing!

Should be within the range Bubba stated above.
Steadily increasing through out rpm range up to 5000rpm/ 70-75V.

-Steve

 

Another note:

download the electrosport fault finding PDF from their website.
Between this and a multimeter you should come out victorious in this fight with your bike!

 

O.K. I thought about this and replaced the blown main fuse ( blew when I pressed starter button with jumpers on battery ) & the bike starts up !!!
What gives ? If it was a weak battery ( new last spring & always on battery tender ) why would fuse blow?

 

Was the car/truck's engine running when you got a jump from your son? If yes, then you are lucky the fuses are all that was burned up in the process.

Just in case no one else knows this information, if you get a jump from a car/ truck, whatever, you only need to use their battery, so the car/ truck engine should not be running! It can fry and destroy expensive MC electrical components.

BZ

 

The truck was not running when the fuse blew. What is the testing procedure for the stator to see what DC volts it is putting out ?

 

See above post....

Download the Electrosport Fault Finding PDF.
http://www.electrosport.com/electrosport_fault_finding.html

This will give you a step by step procedure on narrowing down your electrical problem. (ex. stator, battery, R/R)
In most cases it will PIN POINT YOUR PROBLEM EXACTLY.

Hope this helps
-Steve

 

O.K. I tryed to download fault chart & got error ! I called electrosport to order new stator & had to leave my phone number for a call back. Has anyone ordered from this company ? & is there anyone else to order a stator from? Thanks

 

You can get a stator from Ricks Motorsport Electrics as well as r/r's for reasonable prices.

 

Wait on the stator purchase. Just do the testing first and find out what is really going on. No need to go blowing tons of cash on something you may not need.

I recently bought a 99 VFR from a guy that simply didn't want to deal with the charging issues anymore. He put literally thousands of dollars into this bike. I got it home, did some research, found out he was using an AFTERMARKET rectifier. Got a genuine Honda unit, ran a couple extra wires to the battery...voila fixed.

The stator should be putting out 17v at idle, about 80 when revved. This is coming out of the yellow wires at the rectifier. If you get the bike running again, check the battery voltage at idle and revved again, should be no less than 13 at idle and around 14.2. Even if your battery is going south, you should still have those readings.

BTW a factory rectifier runs about $200 at the dealer. Don't try to go cheap, just get one.

 

As you may or may not know, I have been going through a headache of a charging system problem(see the thread "Another R/R problem..") I finally decided to buy a new stator anyway even though it seemed to check out. The ohms were OK on the old one and put out about 70 volts at 5K RPM's, what the hell its only money right?? riiiiiiiight. So now I put in my brand new electrosport "heavy duty" stator, the thing only puts out about 45-48 volts at 5K RPM's or more. With the new stator, the new R/R, running new wiring, and the fan mod the bike will do about 14 volts with no headlights. Put the headlights on, the voltage drops waaaaaaay down. Im about to give up and buy a suzuki. Just kidding!!!!!

 

Everyone is talking about volts coming out of stator. Is the Test performed by putting volt ( DC ) meter to Yellow wire's ( out of stator ) & neg. ground ? Also is there any Test for R/R ? MY bike with new battery ( same r/r & stator ,that left me stranded ) does not show ANY increase in voltage when I rev. the bike.
This Problem is starting to get to me!!! I ordered new stator Got a new battery sooo I will do the re-wire trick when new stator is in . I just would like to understand if this R/R on my bike is/will function ? I NEVER had any issue with a 350 honda years ago & the same goes for my Guzzi V7 Sport.

 

The stator is tested on the three wires, no ground. I'm not understanding why you ordered a new stator, more than likely it's just a bad rectifier or loose wire somewhere. Likewise the battery, probably should have just been checked at the store first.

But hey, if you want to go buying all these new parts, go right ahead!

 

Just make sure when you check the voltage coming directly from the stator, before it goes to the regulator, using AC voltage on your meter. The stator puts out unregulated AC voltage and gets dropped and switched to DC by the R/R.

 

1shotkill,

Just download the Fault Finding Chart from electrosport.
This is the EASIEST way to diagnose any of your electrical problems.

I just tried again after you posted you got an error, and worked fine 4 me?
Do you have the Adobe PDF viewer or writer on your PC?
If not you'll need to download that first...
I know its silly, but had to ask...just a suggestion.

 

Another thought...

If you want, PM me with your email address. I'll send it directly to your email since your having troubles.

I thouroughly suggest using this tool, before running out and spending $$$$$ on parts.
just my 2cents....

 

Yes I have downloaded before from other site's . Thanks for the offer I can be reached @ V11Cadoo@yahoo.com . Thank You