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f2cafe racer
yozzer74:
Started making my wiring harness .with the help of Bryan drawing a diagram for me. [ Guests cannot view attachments ] [ Guests cannot view attachments ] [ Guests cannot view attachments ]
yozzer74:
Need a little help with my wiring got all lights working starter motor turns engine over but I have no spark wired yellow& blue wires from points to coils then black&white to switch .but there's no spark any ideas what to look for .Cheers
K2-K6:
You should have a constant 12v supply to the coils with ignition switched on and the coils earthed through the points only when they are closed.
When you rotate the crank, the wires through the points should lose continuity to earth as the points open. If not, then you'd suspect the insulator washers where the wires and condensers connect to the points as if they are assembled wrongly the wire tracks to earth before it even gets to the contact face to be switched by the points.
yozzer74:
I'm getting 12 volts to coils when ignition is on and I haven't touched the points as the bike was running before I stripped it .Will check tomorrow
K2-K6:
Easy way to check the points is disconnect the blue\yellow wires and open the points then put a piece of card in the gap, then continuity check down each wire to the points across to earth and you should have no continuity. Pull the card out and continuity should be there with the points closed.
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