Greetings,
I am looking for a replacement cdi ignition unit, either to borrow for testing
or to buy.
My bike started with an intermittent loss of power, not really misfiring, after running constantly at about 50 mph then going up a hill, change down a gear and although not happy it would keep going, close the throttle for a little while and then the problem would seam to clear. Eventually this condition has got worse and despite all bench testing I have not found the cause. The bike starts and idles just fine, pulls away and runs at low speeds fine, but eventually up the rev range it starts to stutter and then loose power. The fuel system has been totally stripped and cleaned with nothing found, inlet manifold replaced as the original was age cracking, so I must conclude that the fault is electrical.
I suspect that the fault is most likely with the CDI unit, (it could even be the coil), unless you might have experienced the same problem and know of a different answer.
TTFN
Hugh.