xivlia's thread of nc30 problems and questions

[Le_Blur]

http://www.ebay.co.uk/itm/YAMAHA-R6-98- ... 2c60c90901

Probably the best £47 you'll spend on the bike right now.

[iDemonix]

For fucks sake I'm starting to think you don't have a VFR and you're just slowly trolling us all.

Why would you go to all the effort of (attempting) to fix the electrical system, finally getting somewhere, then slapping a chinese shitty reg/reg in there? If that fucks up it can do some big damage to your electrical system, yet you're going to entrust that in to a chinese knock off?

At least do some research. IIRC something like 2005 CBR125 reg/rec's fit fine, I think Rick knows the year/model. I picked one up off the bay for CBR125 and it's right as rain.

Is there an RSPCA for old Honda's?

[Cammo]

Is there an RSPCA for old Honda's?

Yes there is mate.

It's usually an old hand that comes along, sees how all of these issues can be easily rectified, then snaps it up for sod all and gives it some time and affection....

[magg]

Have you now got a fully charged good battery or are you still using the old unknown many times jump started battery. As I have said in an earlier post, if the battery is a dud you will get wacko battery voltage readings that have little to do with the condition of the charging system. 7 volts across the battery at idle says the battery is stuffed, no charging system is going to support a battery that drops to 7 volts under load.

[Neosophist]

:D woooops it was actually set to dc....LOL my bad. i tried again set to AC and im getting welll over 50v if i give throttle....at 5k rpm im getting 45v.... any more than 5k rpm im getting like 50+ and thats on all 3 terminals...so im guessing my alternator and stator are working?...one thing ive noticed is that my regulator isnt even getting hot when the bike is running...left it running for about 5mins or so. and its cold to the touch....i think my regulator is fucked along with my battery... what do you guys think?

Stupid question but is your regulator plugged in?

Is the 3 yellow wires from the altenator CONNECTED to the reg/reg?

Wihtout it it won't be getting any current.

DO NOT buy a chinese reg/rec. It'll destroy your electrical system eventually, more likely sooner than later.

also REPLACE the battery as it's fucked... do NOT put a new reg/rec onto an old battery thats dead.

Fully charge the new battery properly with a motorcycle charger before installing it.

Old bikes cost money... it can cost thousands to properly restore an old bike to factory finish, even getting one up and running can easily run into 500gbp+ if you do it propely.

typical example.. old nc30, 800gbp from ebay.. looks ok.

However, it needs:

tyres, - 200
chain and sprokets, - 100
rear wheel bearings, - 80
full charging system, -150
head bearings - 25

already over 500gbp for things that are essential to ride safely.

400's are popular 'entry level' bikes and are getting old now, theres millions of knackered and neglected ones about as the owners either skimp or can't afford to fix things properly so they bodge and bodge until it's falling apart and then sell it.

If you want cheap hassle free riding, save up and buy a new bike and chop it in every year or two and let the 2nd hand owners worry about problems.

If you can't aford that and are just after a starter bike, much better off buying something newer, mostly likely a 600 class bike these days, but theres less chance of it being destroyed.

You'll get the bike working, just don't try and save on importanat parts.

[xivlia]

hmm. i suppose your right....the regulator is connected and so is the alternator plugs. ive got my new battery. but i never knew it was a dry battery, so i ordered a trickle charger from ebay. i think it was the oxford 600 something.. cant remember its exact name. when it arrives im gonna fill the electrolyte and charge it for i think its 6 hours at 600mAh charge rate for a 6Ah battery? correct me if im wrong. i had already bought the cheepy alternator, but i WILL replace it as soon as i get pay from my job...my job requires me to travel around the Highlands. so on my first pay slip, i will buy a heavy duty r6 regulator. i know yous must think im a total idiot...but i honestly have NO money at the miment and im on a deadline

[Le_Blur]

600mA = 0.6A
0.6 x 6 = 3.6Ah
In theory this is only enough to just over half charge the battery. I think you'll need closer to 10 hours. Most chargers will switch to a maintenance charge when the battery has reached full capacity, so it's pretty safe to just leave it overnight to charge.

[CMSMJ1]

nahh..when you fill a battery it can be used straight away.

a 6Ah battery is too small for the bike though? You want a YTX7 or YTX9 in there - at least 7Ah and more like 9Ah is better

[Neosophist]

600mA = 0.6A
0.6 x 6 = 3.6Ah
In theory this is only enough to just over half charge the battery. I think you'll need closer to 10 hours. Most chargers will switch to a maintenance charge when the battery has reached full capacity, so it's pretty safe to just leave it overnight to charge.

Yep 10 hours sounda about right.

Old bikes always cost a fortune.

Dont' skip the properly charging it part, it will work right away but you'll cause damage and it'll never be able to 'fully' charge if you don't fully charge it before using it (most batteries i've ever brought have always said in the instructions that the battery will last a lot longer if your fully charge it first and how long to charge it for)

Basically they arrive dry with around 80% formed plates.. after adding the acid, the slow charge forms the rest of the plates properly, this needs to be done over a set time at a set current, read the instructions that come with it.

I had this out with a shop mechanic a few years ago who said he'd worked on bikes for years and that he never did that just filled and went.

Even when I showed him the Yuasa or Varta (can't remember which) leaflet that clearly said in big letters if you don't slow charge the battery it'll never be able to obtain max capacity he didn't take it in.

In contrast, my local Honda dealer knew all about that and fully charge all their batteries in advance.

Read the instructions and see what it says.


It's strange your reg/rec is completley dead, thats usually the case of something not being connected.

-- Edit --

I believe it was VARTA, just been on their website.

http://www.varta-automotive.com/index.php?id=311

IMPORTANT: Please note that after filling your VARTA Funstart AGM battery, we recommend that you let the battery stand for at least 30 minutes. Then, before installation you should ensure your battery is fully charged.

CHARGING

To ensure that the battery can supply the performance, starting power and voltage you need, it first needs to be fully charged. The recommended charging current is 10 % of the indicated capacity in amperes (e.g. 4 Ah battery = 0.4 A charging current).
We recommend that you ensure your battery is fully charged before fitment to ensure a long service life.

There is a big technical explanation on the plate forming by one of the MFG's somehwere i'll try and dig up.

But by skipping that phase you'll loose some of the batteries potential

[xivlia]

ahh thanks!. i just got my trickle charger so il charge it at a rate of 600mA/h for 10 hours.