Hiya fellas,
Looking for some charging advice on my CBF and thought I'd post on this forum 'cos the CBF forum just runs round the same old crap. Reckon I'll get an impartial opinion here on a basic bike charging circuit.
The CBF1000 up until 2010 models has a well documented stator/rectifier issue which was a recall from Honda, unfortunately my bike being an '07 is outside of Honda's 7yr free fix.
The issue I have is that both the Oxford v8 heated grips and the LED spots are suffering from what appears to be a low supply voltage. The Oxfords switch off and the LEDs will only glow. The Oxfords used to work for a given period (45 mins) which gradually reduced to not operating. The spots went from running for a given period (45 mins) before they started flashing and needing turning off. The period would be shorter on the way home until the bike went onto the Optimate over night. Issue started about a week ago and went downhill pretty fast - all other electrics working fine. Both grips and spots are wired through relays of good quality which I've checked ok but replaced anyway.
The battery at standstill post Optimate measures 12.7Vdc going to 13.7Vdc at idle and running to 14.1Vdc at 5k rpm. After riding home and pre Optimate charge the voltages are the same. No problem it would appear, and these voltages are also at the Oxford terminals and the LED spot light terminals.
However, the Oxfords will only switch on for 2 seconds before flashing a "low voltage" yellow lamp and switching off. The LED spots will only glow gently and not fully power up. All the time the supply voltages are good.
Now this is basics I know but doesn't make sense - sufficient voltage = bloody work then!! However, before I splash out £300 on a new stator, rectifier/regulator and battery I'm just wondering if a poor battery can show sufficient voltage but have insufficient amps available??
Has anyone had anything similar?
I know a digital multimeter can show 240Vac with bugger all current behind it due to the low impedence (resistence) of a Digi Multi Meter.
Anyone else suspect it could just be the battery having voltage but no balls so to speak (no idea how old it is - Model YUASA YTZ10S)
As always, any advice much appreciated