Yamaha YW50P Service Manual page 48

A U T O L U B E P U M P AIR BLEEDING
I INSP
A U T O L U B E P U M P AIR BLEEDING
1. Remove
• Lower cowling
• A i r shroud 1 (~
2. Air bleeding:
• Pump case and / or oil hose.
* * * * * * * * * * * * * * * * * * * * ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
Air bleeding steps:
• Place a rag under the autolube p u m p t o catch
the oil.
• Remove the bleed screw (~.
• Keepthe oil running out until air bubbles dis-
appear.
• When air bubbles are expelled completely,
tighten the bleed screw.
NOTE:
Check the bleed screw gasket. If damaged, re-
place w i t h a new one.
Place a oil pan under the autolube p u m p to
catch oil.
3. Air bleeding:
• Pump d i s t r i b u t o r and/or delivery hose
Air bleeding steps:
• Start the engine.
• Run the engine for 2-3 minutes at 2000 r / m i n .
This will c o m p l e t e l y r e m o v e autolube p u m p
system of air.
3-8