I wonder if anyone can help diagnose my high(?) oil consumption. My bike is a 2004 950 with 90,000 km (about 56,000 miles). During it's early life, oil consumption was acceptable - I mean, it needed topping up with <1 litre between 6-7000 km oil changes. So about 2 litres per 14,000 km (8700 mile) season. (0.14 litres/1000 km). Over time the oil consumption became worse: 4 litres over 12,000 km, so 1 litre/3000 km (0.34 litres/1000 km). At 74,000 km, I had to strip the engine in order to replace the selector drum. While the engine was apart I replaced the (serviceable) piston rings and honed the bores lightly. After honing the ring end-gaps were all around <0.32 mm (limit 0.5 mm). I did not have the correct tools to measure the bore and piston accurately. I also changed the oil seal in the ignition casing (the balancer shaft oil seal). I ran-in on semi-synthetic oil for over 1500 km on twisty roads not being too gentle - using plenty of acceleration and engine breaking - but oil consumption remains high. 16,000 km after the rebuild, I measured compression and found 16.5 BAR (240 PSI). And carried out a leak-down test and found around 30% leakage, front and rear. KTM state: 0.3 - 0.6 litres/1000 km: normal. >1.0 litres/1000 km: there MUST be a serious technical defect! My bike is ridden hard, but 0.34 litres/1000 km does seem a bit steep! Is it, despite what KTM say? Looking at the leak-down and compression test results, could it be that the bore/piston/rings are at fault, or should I be look for another reason for the oil loss? Any info will be gratefully received. Thank you.