TOHATSU BFT75A Service Manual page 590

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CAM CHAIN TENSION ADJUSTMENT SYSTEM & LUBRICATION
MECHANISM
OUTLINE
The BF75D/BF80A/BF90D/BF100A are equipped with a cam chain tensioner and a cam chain tensioner slider to constantly
maintain the cam chain tension at the proper level.
The oil injected from the oil pipe drips down from the ribs located in the chain case, then lubricates the cam chain driven sprocket,
cam chain drive sprocket, cam chain, cam chain tensioner, and the cam chain tensioner slider.
STRUCTURE
OIL SPLASH
PREVENTION RIB
(CYLINDER HEAD
COVER)
OIL DRIPPING RIBS
(CHAIN CASE)
OIL SPLASH
PREVENTION RIB
(CHAIN CASE)
CAM CHAIN TENSIONER
SLIDER
CAM CHAIN GUIDE
OIL PIPE
CAM CHAIN TENSIONER
TECHNICAL FEATURES
OIL SPLASH
PREVENTION LIB
(CHAIN CASE)
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