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About tui give up and dump it on a bike mechanic, but seriously doubt there are any good ones in Glasgow
I can't really help but if you go this route, try Stevie Brierton in the inductrial estate over the road from the velodrome. He's been looking after the dernies and anytime I'm over there he seems to have piles of scooters and wee bikes kicking about so presume he's a bit of an authority on them. He's done a good job on the dernies, I haven't had him do much more than a tyre change on my bike but he worked on my old mans beemer and charged him pennies.
M_V-
Cheers man, sounds about right sort of guy. Missed him today, or will have by the time I get from West to East. Rang up that one in Hillington as shop is alright, hourly rate is £70 odd per hour, wtf! Charge a min of one hour for investigations, at that rate I would be better off just buying a new stator and regulator (50+25) and wing it lol.
BrickMan
Anyone good with charging systems?
Picked up a 2007 yamaha ybr 125 injection in lieu of some money owed, but was one hell of a state. Easy the worst bike I've ever seen that's in one piece. So much corrosion!
Symptoms... Was not charging due to main earth strap not connected to anything, and positive lead coming from regular broken inside the connector. Fixed up both those, replaced battery with a yuasa if the right type as old one was struggling to take a charge even from a decent smart charger.
Then it was charging but very weakly, at idle almost nothing. Above 4000rpm it was making just 13v, and 14.2 at Red line,until today when it's making nothing.
Regulator checks out with a multi meter, all that resistance and continuity feels right. But the output is just low.
Stator coils I'm not sure how to check properly. Each of them has a similar resistance to each other and are within the range given by a Haynes, none have continuity with earth, so that's good?
But when running I am not getting any voltage between the stator wires (3), it should be as much as 70vac from each according to manual.
Did a few other tests, no shorts, no bad main cables, all nice regular low resistances, no parasitic draw (at all, when off, everything is off!).
So from my limited knowledge I'm thinking it's either a duff stator in some way, the coils are breaking down? Or the ignition switch is in some way duff, not sure if this bike has a passive stator or needs a current present to excite it?
Ignition switch itself is rough, bike came with a new one but appears to be the wrong type, or my existing ignition is buy and the new one is just showing a difference because that's how it's meant to be.
About tui give up and dump it on a bike mechanic, but seriously doubt there are any good ones in Glasgow