what causes a Burnt Harness?

like this one

is it my rr? or did the plastic just get weak and short out?

 

the rr itself seems to be in range with an ohms test.

 

Without knowing exactly what those terminals do, I'd say it's due to an overcharge condition knowing the track record of VFR's and overcharging. Either that or they were loose/corroded. One way or another they got mighty toasty and need replacement to insure a good connection in the future.

 

they are from the stator. 2 months ago all 3 from the stator were on the right voltage, now i dont know.

 

well. am i to assume that i should not be getting 25 v off of each stator wire...
does this mean bad stator then.

 

Thank You, Mr. Wstuff

 

Hey Tink, you should come out for the ride today. Could meet you in Lyons?

 

you two pricks can screw off. ill get it fixed with or without your help.

the difference is i dont care what you think. but unlike you thinkerbell, im not affraid and conform to what everyone else wants me to be. im not an animal as you so quickly compare yourself too

 

i took the wires out of the harness insulated them and hooked them back up and i am getting correct voltages from the rr.

now as far as over charging goes if the bike is doing it ill just run into more problems.

reving the engine gives me over 100vac from each stator wire. what should the voltage be. i looked in the honda manual but it doesent state what it should be at.

 

I found the cause:

 

I'm no 4th gen guru and I don't have the manual handy to check right now, but 100 volts ac or dc sounds mighty high and would certainly account for some cooked terminals that weren't meant to take much over 16volts. Are you using the HONDA manual or some Haynes garbage?

 

Most likely suspect is Corrosion causing a high resistance point in the connector (kind of turns it into a toaster). Check your wires for signs of heating as well (discoloration, bubbles in the insulation, Brittleness, etc..) If the wires look good and the damage is confined to the connector it's probably corrosion of the connector. If the wires are also damaged, other than adjacent to the connector, you may have a high current passing through that harness. Could be caused by a short to ground or from the RR.
This is all just general electronics troubleshooting stuff. BTW the likelihood of the bike generating too much voltage is low, Generators/alternators usually fail to low or no voltage out. The RR is where voltage is controlled.

Dave

 

im using a clymers, i may get into honda and take a look at the honda written one and see what the output from the stator should be.

i didnt specificially look but i havent seen any damage on the wires themselvs.

ill have to get a new harness ordered and get the battery charged and checked out. then i can go on from there with the meeter as i did before.

over 100 vac does seem like quite a bit from the stator though. that was around 7k rpm i believe.

 

On the off chance the question is legit, use this chart: http://www.electrosport.com/technical-resources/library/diagnosis/pdf/fault-finding-diagram.pdf

Stator should be over 50VAC and all equal across each leg.

 

The R/R on gen 3 and 4 was a huge pile of shit and is the direct cause of failure. It is my understanding that a turtle was the head engineer on that one. Go get a CBR 600FI R/R (dirt cheap and grow on trees) and all will be good again. Hard wire it in and apply some turtle wax.

 

So put him on your ignore list and stop replying to his inane posts.

Maybe my reply helped a couple other 4g or other gen owners out there having electrical issues.