I was riding home on the M6 yesterday after a weeks touring round Scotland when my rev counter went haywire them died. Shortly after, the bike backfired twice and the engine cut out leaving me to coast ( carefully) over to the hard shoulder. I had to get my breakdown company to bring me and the bike home as it would not start after this. I checked the bike again when I got home, all electrics seemed to be working (not rev counter) but the engine would not start - there was a loud clicking noise when I tried to get it going. I put the battery on charge overnight as I didnt think it could do any harm and it started first try this morning! With my limited knowledge I suspect a battery problem but I'd appriciate any thoughts as to what caused the breakdown and how I can avoid it happening again. Oh, and I had the bike fully serviced before going to Scotland to prevent this sort of thing. Bugger.
Honda Deauville 650 problem
Posts 19 | Views 4552
I recognise this from personal experience!
It sounds as though your charging system has broken. Test it by putting a voltmeter across the battery terminals and raising the revs to about 5000rpm. You should get at least 13.5 volts (DC). I suspect you'll get less. Basically you've been running on battery-only until it was exhausted.
^^^^ This ^^^
Check your regulator/rectifier as this once killed my battery on my VFR,which end in a similar outcome.
Hope you get it sorted.
Knowledge is knowing how to keep fit
Wisdom is knowing that you should train the entire body not just your keyboard fingers and gob, lest you put your back out 😉
If your alternator is working
then your reg/rec is probably had it. Not familiar with the Deau, but reg / recs seem to be a Honda weak point in general (or were anyway).
Honda Deauville 650 Year?
I to believe with the info you give its a reg/rec problem,you say the bike started after the battery charge but not the rev counter?is this still the case? is the rev counter still not working?and what year and mileage has your bike done?
the charging system to make sure it's charging correctly and also the starter motor relay and the wires going to it.
Have a look over to www.deauvilleuk.org as well and post the question over there as someone will have come across it on the DV before (the fuel pump on the DV650 is a common problem)
Hi, I've followed all advice above and cant nail down the problem. However I've just spoken to a motorcycle mechanic who belives it may be a bad connection to the ignition coil - apparently this would cause all the symptoms mentioned_. 'm no mechanic, but I'm going to try accessing the ignition coil, which I think is under the tank and tracing the wiring back. Thanks to everyone who replied and I'll get back and update on what I find._
Don't know who your mechanic is,or your telling him a different story from what you told here,but if what you say is true then there is no reason the bike would completely cut out if a wire came off a coils,see i say coils as there are two.Not only are there two coils on the NTV 650 but each coil has two HT leads and each head has two spark plugs.So if a wire came off a coil(or had a poor connection) the bike would drop a cylinder not just cut out.All the symptoms you describe say dead battery due to some kind of fault with the charging system.Unless for some bizarre reason you didn't post some other info?that you have now revealed to said motor cycle mechanic.
I hope you know a motorcycle sparky with more idea who can take voltage readings to test the battery/regulator/rectifier/alternator?
Also i cannot understand why you didn`t answer kcmc first post!
No, told him exactly the same - he seemed pressty sure it was caused by the ignition coil or a bad connection coming from it. However everyone else is of the same opinion as you re the charging system so I'm going back and testing it again. If I cant pin it down I might just order a new regulator and bang it on - cant hurt.
Also, as jaffa 90 has mentioned I should have posted this info earlier - sorry, my mistake - the bike is a 98 reg, just a shade under 40,000. Also the rev counter worked when the battery was re-charged and has been working since.
My mistake, sorry..
Your quite right jaffa I should have posted a reply - my oversight. Ive replied now with the info. I have tried testing with a multimeter as suggested but got decent readings back so confused what to think now. I'm getting a mate to bring his meter in ( mine is a little old) see if the results are the same.
"Tried testing with a multimeter
as suggested but got decent readings back".
Whats a "decent reading"?
The bike was put right with charging the battery OFF the bike,
What`s the battery voltage at the bike and not charged up for a few hours?
What`s the voltage when cranking,when on tickover and at 5,000rpm with headlights on?
Remember to answer all questions if possible.
Hi Adier - see reply to jaffa 90 below - save me writing this twice!
Hi Jaffa90 - had the battery on charge overnight as hoping to use for work today so when measured it was showing as 12.72 ( borrowed a mates shiny new Mulitimeter). However with engine running as you described at 5,000rpm voltage was 12.29. I took a reading again with engine off and came in as 12.44. Also the regulator was warm after just a few minutes of running, which from what I've learned from this forum does point to the regulator. Also thanks for the list of meters on ebay - old one has been dumped, mates has to be returned so will be ordering on today.
Your battery is not charging when on the bike,
kcmc m/c tech down under first post says reg/rec,
why honda can`t make a decent one i don`t know,
you can be sure it`s that by checking the alternator output.
"Also the regulator was warm after just a few minutes of running, which
from what I've learned from this forum does point to the regulator."
Actually temperature itself isn't a good guide because they do get very warm in normal use.
James was in there first about charging.
Problem solved - I think!
Hi, sorry have not replied in a while but I think the problem is solved. I've fitted a new regulator and that seems to have done the trick - I'm now geting a much healthier readings on the multimeter - 14.30 at 5,000rpm. I do hope this has fixed it as I'm riding to Barmouth tomorrw and dont fancy another breakdown. Thanks for all the guidance and advice from all concerned. I love riding but I have a lot to learn about the mechanics of the things.