Drained the oil and other than it smelling of fuel there is no contamination. I tried looking into the spark plug hole and under the rocker cover but cannot see anything from there. When I have time will take the engine out and remove the head. It sounds like the piston rings have gone and they are scraping the barrel.

Are there any guides around for stripping the XT engine? I heard Kev had done one but cannot find it.

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Now have a 2017 S1000XR Sport SE

2006 XT660X - Cat D write off due to someone pulling out on me - Pipewerx carbon fibre exhausts - Snorkel removed and airbox drilled - DNA stage 1 + 2 air filters - Kevs fuel controller mod - Scottoiler V system - Oxford heated grips - HEL braided brake hoses - Wilbers 540 rear shock - Brembo brake pads - AFAM chain and sprockets - Michelin Pilot Street Radial's - Denali DX Xtreme dual intensity spotlights