Second session at a beautifully sunny Snetterton yesterday - third lap, engine started running mega rough with no power. In the pits: rear cylinder exhaust pipe was completely cold and orange engine light was on. Checked sparks: OK Checked injectors: rear not OK. Over the course of the next couple of hours: checked all fuses, pulled off battery box and wiggled wires to ECU, injectors, PC111 and basically everything. Still only ran on front cylinder with the orange light on. RH fan was running at one point even though the engine wasn't hot. Decided to call it a day and start packing up. After another hour or so, hit the starter and it fired up just fine, no orange light. Thought to myself - hey, I can get out on track again. Let it warm up for a while just to check and when it got to 78-80degC: tons of nasty smoke from the exhaust! Let it cool for a b it, tried again and then at the same temperature the smoke started again. Gave up. Bike now at MD Racing for investigation. Initial thoughts when I dropped it off and without checking fault codes etc are maybe a head gasket (based on smoke symptoms) but not sure about why the engine light was on and not running on rear cylinder. Fun way to spend a sunny Sunday, 6 hours travel and £129 trackday fee!
Not black, not white..somewhere in between really. Grey-ish. Didn't smell particularly of oil or petrol...tricky to work out exactly what. It basically smelt like exhaust gas..hot and of burnt hydrocarbons.
:smile:Sorry about your spoilt day mate.... but I'm sure Andy B.............olux will be along soon, to cheer you up !:biggrin:
Looking on the bright side...I managed to get quite a nice tan while I was fiddling about in the open air!
Sorry to hear that, rear cylinder pipe being cold is puzzling? Obvious external oil leaks and blue smoke if the oil is making it into the cylinder(s). White smoke, could be coolant burning in the cylinder (blown head gasket). White/greyish smoke can also mean that the valves or piston tops/combustion chamber surfaces are burning (Highly unlikely as the things that cause that take a while to screw things up and there would be sudden catastrophic engine failure when they went) Hope it's a simple fix.
I had the same problem with my 999 once. Turned out to be the ecu and a bad earth in the loom. Hope you don't have as much drama as I did!!
I think it could be something to do with those pea shooters stuck in you rexhaust! Seriously, always a bummer when you loose at sunny day in the track. Had a 'problem' with my Aprilia RS250 a couple of weeks ago and lost a full day. After a seemingly full strip down by the track I took it home to find, a week later, a bloody ignition plug undone! Plugged the bugger back it a away she went. Doh!
Yeah, they are real anti-noise-nazi's at Snetterton! Maybe the turnips in the adjacent field have complained?? The pea-shooters really mess up the throttle response however...not quite as much as I suffered on Sunday!
Just got a call from MD Racing about my bike: they have done some investigation and found that there were a lot of cruddy connections to the ecu/injector loom. This is the likely explanation for the erratic firing and injector issues. The smoke was due to the ecu getting confused by the erratic feedback from the cruddy connections and flooding the cylinder with fuel. They say there are no mechanical issues (head gasket, valves, pistons etc) - good news basically. It should be sorted by next week when I get back from sunny Spain - bueno!
