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@BrickMan
07 ybr 125 injection
Bastard electrical gremlins again
Got a bad tank of fuel, mostly water, removed tank and fuel pump to drain it, was very bad. Then wouldn't start, must have bumped the coil with tank and killed it, had gone "open" state.
Today got new coil (pattern part with suspicious thin ht lead, but resistances checked out), new cap and hey presto (old coil and new cap was also a no start) started and idled like a boss, low rev response was better than normal etc.
10 mins later....
Cuts out as change down gear, and randomly when warm at maintenance throttle or overrun.
Let bike cool and your fine for 10 mins then it does it again. The hotter the bike gets the more frequent it cuts out.
To restart have to turn key off and back on, just bumping it won't restart (no spark)
Ecu gives fault code 33 = ignition coil (code cleared before new coil fitted and it gave this code when it broke last time). Resistance on the coil still checks out (cold on the bench)
So will put a fresh plug on it in the morning, but tbh I think it's either a duff new coil (changed between various spare caps (resistor and non resistor) and all had same result) or more £££ a cdi/ecu.
Any thoughts?
Also voltage drop tested all earth's and feeds, were healthy, no wiggly connection or broken wires evident (poked the shit out if them).