What now?...electrics

[Binky]

Would a new wiring loom be easy to fit??? How long would it take??? They're not TO expensive IIRC.

[flymo]

Would a new wiring loom be easy to fit??? How long would it take??? They're not TO expensive IIRC.

I bought one from ebay cost me about £25. Fairly easy to replace one but removing bodywork can be a pain.

[Dave20046]

on a naked probably not too big a job but I'm scared of electrics so wouldn't fancy trying it.

[Dave20046]

Right it's quite apparent I don't know what I'm doing Ive tried testing from the red wire pin on the relay to the red wires pin on to block connector under the head stock and I'm not getting a beep between them, should I? The ignition doesn't need to be on does it?

argh lol

[flymo]

Right it's quite apparent I don't know what I'm doing Ive tried testing from the red wire pin on the relay to the red wires pin on to block connector under the head stock and I'm not getting a beep between them, should I? The ignition doesn't need to be on does it?

argh lol

are the two points joined together on a wiring diagram? If so then yes :-)

[yorkie_chris]

Remember to test the loom side of both connectors, yes you should be getting a beep, and yes this could explain your issues...

[Dave20046]

Erm I seem to be lacking a wiring diagram. To be honest I thought the lights wouldn't come on at all if there was no beep between the red pin on that block and the red pin on the fusebox thing. The red wires the main power right?

I tested the loom side of the (disconnected) block at the red wire's pin and then stuck a probe in the back of the fuse box to contact the red wire there.

[Binky]

on a naked probably not too big a job but I'm scared of electrics so wouldn't fancy trying it.

I was like that when changing the oil and filter and taking the front wheel off my bike. Once you've done it you wonder what you were worried about. Even easier if you have a Haynes manual.

Is the problem definately with the wiring within the loom???

[Dave20046]

I was like that when changing the oil and filter and taking the front wheel off my bike. Once you've done it you wonder what you were worried about. Even easier if you have a Haynes manual.

Is the problem definately with the wiring within the loom???
Yeah suppose, I'm sick of spending time on this bike though practically rebuilt it.

Erm not entirely 100%. Reg recs appear to be working (kind of) but the electrics spaz out every so often.

[Dave20046]

What a pile of ****e. I just tried measuring across the battery while off - 13v, just started her up and measured at 5krpm 13v which then slipped to 12v.

I hate this monging bike.

Anyone know how much an SV is worth in bits?

[21QUEST]

Dave any joy?

By the way, I've errr updated my thread...not good news though :D


Ben

[Dave20046]

Dave any joy?

By the way, I've errr updated my thread...not good news though :D


Ben
no, no joy at all :(

[RatchetJob]

Dave, if the battery is measuring 13v when its not charging / off that is the baseline voltage. It should not drop below this unless you are cranking the engine. (obviously it will gradually fall if the rec reg is not charging it, but it wouldn't just flip from 13v to 12v)

When you say that the voltage dropped to 12v when the battery is holding a charge of 13v that would indicate to me that there is a short circuit causing a 1v voltage drop.

Try connecting the multi meter permanently across the battery in a secure way (crocodile clips, clothes pegs, etc). Have the bike running and try to shake all the wiring you can. Keep one eye on the voltage reading, if it goes up and down by a significant amount while you are shaking a certain piece of wiring you should be able to narrow down where the short lies.

Look for melting, corrosion, missing insulation, places where the wire has been rubbing against anything metal, etc.

[Dave20046]

Cheers ratchet job, I just crocodile clipped the multimeter to the battery so I could pay better attention to it. I've got a video if anyones interested but I won't post it unless someone has 50seconds of their life they want to waste watching a multimeter and listening to a bike rev. But basically the battery when off is measuring 13v-12v-13v-12v and then settling on 12v so I start the engine and it just stays the same no matter what revs.

[21QUEST]

Dave, just a quickie to let you know my situation.

Changed the rectifier to the Honda one I had(see other threads) in box of bits. That was only charging battery at about 13.2 volts. Not good...though I wasn't too sure on if the rectifier was a good'un or not.


Anyhoos, decided to run the output from Rectifier straight to battery (with 30Amp fuse inline). I got idea from a thread on SVRider, that someone posted). Now charging at over 14V

Got to shoot now but good luck fella.



Ben

[Dave20046]

Dave, just a quickie to let you know my situation.

Changed the rectifier to the Honda one I had(see other threads) in box of bits. That was only charging battery at about 13.2 volts. Not good...though I wasn't too sure on if the rectifier was a good'un or not.


Anyhoos, decided to run the output from Rectifier straight to battery (with 30Amp fuse inline). I got idea from a thread on SVRider, that someone posted). Now charging at over 14V

Got to shoot now but good luck fella.



Ben
Thanks ben, which output did you run the wire from? Would this give me a better indication on whether it's the regrec or not. I just can't understand why it's not charging :confused: It is a new reg/rec could it be something else? Or is the reg/rec likely to be duff? Could a dodgy cable be causing it?

[21QUEST]

Dave,

I meant the output from the Rectifier. That would be the plug with two wires. Straight to battery instead of plugging in into loom.



Ben

[Dave20046]

Dave,

I meant the output from the Rectifier. That would be the plug with two wires. Straight to battery instead of plugging in into loom.



Ben
aha I see, but I'd need to fuse the line?
hmm might nip to the local shop and get some. Just rang them, they have a cbr reg/rec in at £70 but they're always funny about me returning stuff if it doesn't solve the problem.

[Dave20046]

Infact ben, that is a good Idea as I've got 0v showing between the reg/rec output and the battery. Might nip and go get some fuses and wire.

[Dave20046]

Soo just tried it again with the bike on it flicks from 12v to 11v, 12v to 11v etc. If I put the indicators on and pull the brake it stays at 11 volts.
Tried it with the reg/rec output hooked directly upto the battery but it was the same.

[Dave20046]

Any ideas where the starter relay is?

[RatchetJob]

Any ideas where the starter relay is?

Starter relay = solenoid

As YC said:

Starter solenoid, under the RHS seat infil panel where the main fuse lives.

[Dave20046]

Ah right cheers, I've checked the connections to that, they look ok.

[Dave20046]

Right hmm recap. The bike cuts out after a while and all the electrics are feeble. When the bike does cut out the clocks go mental. The bike isn't charging but I've swapped the reg/rec and still the same.
Any ideas anyone?

I'm going mad :(

[Bibio]

ermmmm ... how about the obvious... your battery is goosed m8..

if the plates are failing in the battery it wont charge properly and give a false reading..

[Dave20046]

ermmmm ... how about the obvious... your battery is goosed m8..

if the plates are failing in the battery it wont charge properly and give a false reading..
You reckon? Would that cause the sudden cutting out and no power for a few minutes after it has?

[Bibio]

yup .. not enough power for ECU to run properly...

[Dave20046]

yup .. not enough power for ECU to run properly...
Cheers bibio. Might be worth trying a new battery then :) Really hope this sorts it it's really getting me down.

Any idea what's best to ask for for a curvy's battery? Done a search but couldn't find anything. Might be able to get one today and maybe have a ride later! (if it works :()

[21QUEST]

...SNIP...
Any idea what's best to ask for for a curvy's battery? Done a search but couldn't find anything. Might be able to get one today and maybe have a ride later! (if it works :()
Dave, bugger, you stil not sorted.

Re battery, get the Yuasa YTZ14S*(have to double check that). You have to loose the fuse tray for it to fit but it's worth it. A few Hondas use it as standard and are actually not that expensive , even from a Honda dealer. I shall double check the correct name for you later. Mind cost me £50 or less froma Honda Dealer...can't quite remember how much.

Ps I'm not convinced the battery is the real issue myself. Even if the battery is goosed, the rectifier should still output 13.5V/charge the battery at that Voltage, as far as I know.

*Edit


Ben

[Dave20046]

cheers 21quest I've not a clue why the outputs 0. maybe it is a dodgy new reg/rec? I'm going to the shop now before it closes might see if they'll let me borrow a reg/rec too

[noob-saibot]

when ya get your new battery try the 'direct wiring' technique the others have mentioned with the newer reg/rec ;)

ive had charging woes the past 3months. did all the tests/bought new reg/rec. nothing worked untill i did the new wiring, but problem was i did it to the old reg/rec. was then gettin what i thought were okayish figures eg. 14 at idle with no lights and 12.8 to battery with headlights at 5,000rpm. barely enough to maintain the battery and eventually after a few weeks the battery would need a good charging.
got ****ed off as the bike wouldnt start the other day and after revisiting my old threads/figures decided to do the wiring to the newer reg/rec. stuck it in and now im getting a healthy 14.2 with headlights at 5,000rpm :D
it appears now i had two problems going on at once...faulty wiring AND a reg/rec which was failing under load..:rolleyes:

[Dave20046]

Cheers noob, the shop wouldn't sell me a battery because he didn't think it was the issue. If I can get off work earl enough on monday I'm going to ride it round and he said he'd try it with one of his reg/recs on.

I've tried wiring it directly to the battery but it made no difference :(

[21QUEST]

Cheers noob, the shop wouldn't sell me a battery because he didn't think it was the issue. If I can get off work earl enough on monday I'm going to ride it round and he said he'd try it with one of his reg/recs on.

I've tried wiring it directly to the battery but it made no difference :(
Sounds like you have a good shop there :)


Ben

[Dave20046]

Sounds like you have a good shop there :)


Ben
This one's my second choice (hence why I didn't bother going until now :roll:) the better one's shut all week for easter grrr . They are ok though, just a bit funny.
Hope it is the reg rec and I can get it all sorted then and there lol been such a nightmare.

[Dave20046]

Right well I rode all the way to the shop today (no rear plastics, numberplate/indicators/undertray bungee'd in place) without a headlight indicators or front brake but when I got there I was welcomed by someone with a working multimeter and a fair idea of the difference between an árse and an elbow. Basically he's not a clue what my bike was doing but it seems to be chargin according to his multimeter.
engine off 12.9v I think, engine reving 13.2-13.5v. Thing he did note though was that my battery was a bit higher voltage when off (but I had charged it) and that the yellow wires to the regrec were hitting between 75v-85v ac around 5krpm but at about 8krpm it was hitting 160v - said he'd never seen one so high but as it was ac shouldn't do any harm.

Rode round after for about an hour and a half with lights on and using all my electrics to their fullest and it was ok.

[Dave20046]

..bump while yc's online....... :-dd :-dd :-dd




Thoughts?

[yorkie_chris]

Appears to be charging but not much, so something is either draining it, or preventing it from charging fully.
Weak reg rec maybe. Or the battery.

Hard to troubleshoot electrics from tother end of county! It's hard enough in person lol.

[Dave20046]

Appears to be charging but not much, so something is either draining it, or preventing it from charging fully.
Weak reg rec maybe. Or the battery.

Hard to troubleshoot electrics from tother end of county! It's hard enough in person lol.
lol yeah, probably weak reg/rec. That's with a brand new tormax aftermarket one. I said that to him but he said they were decent aftermarket (I didn't buy it from him). May aswell just use it til it goes bang then use a cbr one. I'll see how it goes and think about a battery upgrade too.
Annoying how it looks like my multimeter must be ****ed though! it was showing 11/12v 11/12v whatever I did. Could have been riding it :mad:

Going to give it a proper run tonight see what it thinks.

Cheers, hoping it isn't something draining it as I wouldn't know where to start looking....

[Dave20046]

Better keep it in the upper rev range just to be safe, eh. :razz: