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4Strokes.com - Honda Tech: Pictures of XR400R Engine Work - By ThumperTDC
4Strokes.com Honda Technical: Pictures of XR400R Engine Work By ThumperTDC
Engine with valve cover removed
Engine with valve cover removed.
Valve cover and all screws on work bench
Valve cover and all screws on work bench.
Underside of valve cover
Underside of valve cover.
Camshaft and cam gear
Camshaft and cam gear.
Cylinder head on engine
Cylinder head on engine.
Cylinder head removed
Cylinder head removed.
Cylinder head and valves after cleanup
Cylinder head and valves after cleanup.
Close-up of auto decompression mechanism
Close-up of auto decompression mechanism.
After porting
After porting. Sorry no before picture.
Piston after cleaning
Piston after cleaning.
Exhaust header with excessive weld removed
Exhaust header with excessive weld removed.
Homemade press to remove auto decompression mechanism (a vise and a piece of pipe)
Vise and pipe to remove auto decompression mechanism.
Camshaft with auto decompression mechanism removed
Camshaft with auto decompression mechanism removed.
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