The Place

Posting on behalf of Ste.

At Donington over the weekend, bike was running sweet, until we over cooked it going into Copice, and beached it in the gravel on the first lap of qualifying

Outfit recovered, and back in the paddock, all the gravel was cleared. Came to start the motor, to find she wouldn't start. Giles, spotted a broken wire on the plug for the crank sensor, which was stopping the plugs sparking. Plug removed, and the connection replaced, she was running sweet again. The break probably done trying to fish gravel out from behind the engine.

Whilst checking for a spark, one of the coil packs, felt like its internals were loose, so that was swapped whilst we were there.

We got out in race 1, and had a good race, problem solved.

Sunday, headed out for 2 practice laps in the morning whilst I tried something different onto the start/finish, again, motor was running well, but we weren't giving it any.

Race 1 Sunday, and we do the sighting lap, get round to Coppice, get on the power down the straight, and the motor drops to 3 cylinders the FI/F1 light came on, along with FI/F1 flashing on the dash.

Into the pits, and she starts back on 4 as we make our way through the paddock.

First thought, was perhaps the connection we repaired Saturday had come loose, but that seemed fine. Speaking with others in the paddock, it was suggested perhaps it was a coil pack. Coincidentally we'd swapped one, so returned that back to the original one that we'd run all season without fault. The end of the plug where the pack fits looks a little chewed up, so again that was swapped out.

Motor fired up, no noticeable knocks or bangs, seemed to be running fine. Everything pointed to an electrical issue, so headed out for race 3.

Bike was running well, coming along the straight, she dropped to 3 again, Ste pulled the clutch in, and the motor died, with the F1/FI light on. Making it back into the paddock, the bike wouldn't turn over, the starter motor just clicking.

First thoughts, were it's locked up. Ste's managed to get it to turn over on the starter, but not fire.

No smoke, bangs or rattles at the time. Watching some video of as we went down the straight, there's a small pop from the exhaust, on the upshifts.

Any suggestions on what things we should be checking? Perhaps it was mechanical all along?

Hi,

Do you still have a F1 error, if so locate the white I/F connector and put a shorting wire across the red/white wire connector pin and the black/white connector pin , this will then give you the error code on your clocks which you can check online.

Alan

I cured a mysterious misfire and stopping problem once in finding a pin in the removable block connector had worn/ bent if its a standard loom type connector they are not designed to be taken apart on a regular basis moving the various connectors while running highlighted the problem

As we'd turned the engine off, the fault code had cleared itself when we turned the ignition back on.

We tried the connection we'd repaired, as up until then it was right. Ste's thinking it's mechanical, engine will turn over but slower than it should.

New engine going in, connect it up and see if it starts then take a look inside and see if there's anything obvious there.

All things are currently pointing towards the power commander.

Spoken with Dynojet today, and the unit is going over to them and they're going to install a different firmware version that should solve it.