whoops this turned into a saga
I could start anew, but here is most relevant.....yesterday, I had to fix what turned out to be a broken battery connection(red +ve earth wire
), so took advantage of this to change the polarity, as I've intended for a while...(I'm dyslexic enough, don't need to compicate things; RED +ve BLACK --ve), went ok (flashed D+F to battery +ve, battery -ve to engine casing- 'click' from dynamo..!...yup), switched battery connections, fired up ok meter registered 'D+F' = >8 V+ve. seeweet...(for non-cuzzy-bros, that's 'positive response'). so went out for a jaunt, and light entertainment, on the way back an hour or two after dark; uhoh looks a bit dark out front
Thought I must've blown a fuse or something, so fiddled about for a while to no avail 0 volts so decided to take a punt and do a runner, only a few K's from camp....made it over the bridge two to go, and a guy in a Fourby came alongside giving funny looks, so I 'waved him on' (FO) and after I made it around the corner, into the back street, he decided to come say hello, and funny enough, the lights on his wagon matched my bike scheme....red and blue...so we exchanged names and stuff...forget what station he was from....wasn't a train or fire station, but not a hard push, lucky mostly flat...I improvised
and made it home...
Back home battery volts grew by themselves seweet!, so today no work, had a look thinking how can changing polarity make things go dark- shouldn't suck light, should make it....hmmm, everything seemed ok, ~2Ω on th field coil, then 'D'+'F' with motor running =0Volts....but 'D'+'F' + grounded = good motoring....excellent motoring in fact...
, but it wasn't in gear, shouldn't do that..?..
Obviously there was an issue with the timing belt,*wink2*, so ripped off the cover and the belt was there intact, but extremely flaccid
....thought the genny must've slipped, but no, just had lost its guts(all that previous swarf) and sliding over one or both pulleys...lucky I'd picked up anothery, so whacked it in tightened by hand only and hey presto...pulley centres same as before ~130mm, but a bit less deflection ~3mm
New belt is Optibelt/polyurethane as opposed to the steel of the other one
Now I just need to deal with amp gauge reading >-+<