The Dark Wob

I can't believe I didn't think of that, stupid twat. I'll give it a try in a bit.

Points and condenser would have been the first things I cleaned or replaced in the event of no spark.

DodgeRover wrote: ↑Sat Sep 07, 2019 12:25 pm Points and condenser would have been the first things I cleaned or replaced in the event of no spark.

The first thing I did was file the points I've also taken the coil and condenser off and checked it over with a 9v battery and it sparks ok with that, the plug is brand new.
I've just tried it with a bulb and get nothing, I also tried it on the other output from the dynamo to the lights, nothing on there either. Putting a multimeter on the output to the coil reads 1.5 ohms with the points open or closed, seems to make no difference so something can't be right. It's just odd as everything behind the flywheel looks like brand new, no signs of corrosion on any of it.
I've found a wiring diagram and it certainly is pretty simple!

How are you wiring a bulb, the usual way is via the points and a battery to see if they are opening and closing.

You'll never get it spinning fast enough to light a bulb from the generator out without it running.

I did wonder about that, ta. So how do a wire a battery into the circuit then?

I moved on from that earlier as another fucker turned up, they are breeding! This one doesn't run either and has no keys with it sadly. There's no kill switch on it so I've been working on the assumption that the key grounds out a wire to kill the spark, so I've disconnected the wiring harness, still no spark at the mo tho. The battery that came with it is very probably fucked as was made in 1989 iirc and was very low on fluid. I've added a bit of rainwater to it on the offchance it takes a bit of charge. A bit of googling suggests there's no points on this one tho. I think* it's using a PEI system from what I've found so far?

Power up the coil circuit from a battery not the magneto and it should work.

PEI - Pointless Electronic Ignition, an acronym that caused much amusement at the time.

It still does within the right circles.

I had another play with the orange one today, basically went over everything I did before. As they say, assumption is the mother of all fuckups! I'd only got the two plug caps to play with, after testing the one the other day I found it had a high resistance unless the plug was pushed very well home so I swapped it for the other. This seemed to improve matters straight away, except I still couldn't get it to fire. The spark also proved intermittent after a while. Sum of it was both caps were showing high resistance FFS. There was also a problem with the end of the lead too, I had to cut an inch off it to get a reliable reading on the multimeter.
After pouring some petrol straight into the bore, stripping the cable back and doing away with the cap the fucker fired on the second kick!!! It needs the tank taking off as it's full of rust now before going any further, I'll probably leave that for the owner to do. The kickstart is fucked too, all the splines have been smoothed off. I'll probably stick a dab of weld on it, a bit extreme maybe but I've no idea if a shaft would be available.

I wouldn't weld it, put a picture up of how fucked it is, in an extreme you can fit a small cotter pin to stop it rotating.

With only 50cc to spin over it doesn't need to be mega strong, you may get away with cleaning up the splines and making sure it is nipped up good and tight.

Great stuff. Justin's shite deserves its own thread really. I want the G Wagen