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Automatic decompressor for valve-controlled internal combustion engines — Harley-Davidson patent US5687683A (1997)

PatentUS5687683A
TypeUtility patent
Filed1996-11-12
Granted1997-11-18
InventorRichard Knoblauch
SystemEngine

“An automatic decompressor for valve-controlled internal combustion engines consists of a decompression lever mounted pivotably on the camshaft and cooperating with a charge changing valve on the internal combustion engine. The decompression lever is mounted on the camshaft in such fashion that its…”

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Drawings (2 sheets)

Automatic decompressor for valve-controlled internal combustion engines — sheet 1Automatic decompressor for valve-controlled internal combustion engines — sheet 2

Parts for this system

32-0064
Magneto to Crankcase Oil Seal Ring and Gasket Kit
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Handlebar Master Cylinder Piston Cup
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Check fitment first — add your bike and we flag what fits.

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Drawing from the US patent record (via Google Patents). A patent shows the invention as filed, not necessarily the production part on your motorcycle — confirm fitment for your model and year. Independent aftermarket retailer, not affiliated with Harley-Davidson, Inc.