v4 engine novice

[pugparcels]

hi, i do hope someone out there can shed some light on this situation! after a few drinks down the pub i bought off a friend a 1990 nc30 it had been stood for about four years after a bit of work ( new battery, plugs ) she turned over was a bit smokey but i would expect that after four years.

the strange thing now is she wont start, i turned the ignition on as usual, presses the starter she tried to turn over then but wouldn't. Gave her a few seconds tried again and still nothing, then the third time i tried i just heard a click and then nothing no signs of life...i have checked all fuses, the battery voltage and looked for any lose bad connections. When i bought the bike it came with an extra loom so i have even tried that.

the battery is reading about 11 - 12 volts when i put a meter across it. Even stranger is if i connect a set of jump leads from the car to the battery ( no engines running ) just to give an extra bit of juice sometimes there will be ignition lights some times not if there is it still wont fire, even if i press the horn you can barely hear it?

does any one have any thoughts? also if anyone has any manuals etc as i am totally working blind at the mo, i have never worked on a v4 engine before. i also own a 929 blade so i know my way fairly well around honda's but this small little engine is really stumping me!

[viper_biker]

Take the regulator from the Blade, plug it into the VFR (if they are compatible, but most Honda R/R's are) and try that. The R/R's are good for shitting themselves.

[pugparcels]

i will have have a check in a mo, i dont think they are compatible between the two bikes. i have heard the regulators can be a bit lousy on these but is that likely to cause the elctrics to trip out like this?

[pugparcels]

ok looking at the one on my blade and checking ebay they should both be compatible,this i wont be able to fully check until sunday when i im next off. if this does not appear to be the problem does anything else spring to mind? i have heard the rectifiers can cook themselves as they have no fins or anything to cool them down like the one on my blade. I bought it on a bit of a wim, but have always wanted one as i have heard they are a lot of fun hopefully i will be able to find out once i can get this sorted.

[CMSMJ1]

Sounds like the battery is dead.. can you try another - not in parallel with the dead one?

Good arrows on the V4 - they are the law...

We will see it right for you matey..
Welcome to the site

[wullvfr]

fully charge the battery off the bike,then after you put it back in start the bike and see what the charge rate at the battery is @5000rpm??????

if the voltage does not rise and possibly goes down ever so slightly then it is very possible the reg/rec is faulty.

i would do this first before buying a new reg/rec or replacing it.



william

[pugparcels]

ok the battery is no more than four weeks old, it reads 11 - 12 volts when sat on or off the bike. i can't test the voltage at 5000rpm because she will not start, as i said she did run then a couple of days later nothing!

i pressed the starter and it just went 'click' and no electrics as if a fuse had blown but all fuses are present and corect. i did notice the reg/rec was warm to the touch, if it is the regulator would a faulty one cause a complete failure of all electrics? if it does then in theory a working one would get everything working again...

[matt_vfr]

Might sound silly, but i take it you cleaned out the old petrol etc before firing it up the first time?!

Matt

[pugparcels]

yep, all carbs stripped cleaned and rebuilt, fresh fuel put in when she fired 2 weeks ago, since she has not started since i have changed fuel encase that was causing a issue, but it seems more of a electrical instead of fuel issue.

[AliasOmega]

Fuel vacumn pipe fitted, and fitted to the right place on the tank (3 o'clock position).

Maybe some jump leads to a car might help with starting..

usual starting method..

1. Choke on
1a. No throttle
2. Kill switch to on
3. Press start button
4. Leave alone till warm