Hey, Ive just had my 1999 R6 in the garage to have some work done and when I went to collect it, the mechanic told me that he has done the work I had requested, however when the bikes engine temperature reaches about 70 degree's it cuts out. I was already annoyed at the fact that it took him 2 weeks to balance the carbs and change the fork seals, let alone the £350 he charged me, so I took it home.
Before I left he told me he thinks its something to do with the thermostat, he said it looks as if the owner before me had fiddled about with it, as instead of the fan automatically coming on when the bike got hot, there is a switch which you have to maually operate in order to switch the fan on. I didnt want to take his word for it because he'd already bullsh*tted me and ripped me off, so when I got home I checked the oil levels and coolent. I completely drained the oil and put in fresh and the coolent was already near enough bone dry, so I cleaned the coolent system and filled with fresh. I then started the bike and it was running fine, it got to around 90 degree's and then cut out. To me it sounds more like fuel starvation, as it stutters and I can put on full revs and it only goes to around 2000rpm while still stuttering, if I let go of the revs it cuts out. Also when I was bringing it home from the garage and it cut out, it cut out at 55 degrees not 70, and its cutting out at random temperatures which leads me to think its not the thermostat. Has anybody had any problems like this, or have a good idea what it could be? I'd be very appreciative.