Category : engine

XT500 valves in head

Cylinder Head, Valves and Rockers

Cylinder head, valves and rockers got scrutinised before moving on to the cylinder and piston. Removing the rocker cover, inspection of the rockers and tappets and cam shaft revealed some wear but I’ve seen rockers and tappets a lot worse than this but they still showed enough wear to warrant replacement. The cam shaft shows more wear than I’d hoped and even some flaking on the edge of one of the cams. This is an expensive part to replace new […]

Engine in general

The XT500 engine is a 499 cc (30.5 cu in) 4-stroke single SOHC, with a bore / stroke of 87 mm × 84 mm (3.4 in × 3.3 in). Compression ratio of 9.0:1 and 5-speed gearbox. 27 May 2020 Before dismantling the XT500, I needed to fire her up and get the engine oil hot to drain it properly. I also wanted to see that the electrics worked and hoped there wouldn’t be a need to replace the loom. The […]