Air Bleeding - Yamaha YT175J 1982 Service Manual

NOTE: ______________________ __
When inserting the thickness gauge between
the adjusting plate and the adjusting pulley,
be careful so that either the plate or the pulley
is not moved. In other words, do not force
the thickness gauge into the gap.
Minimum pump stroke:
0.20 - 0.25 mm (0.008 - 0.010 in)
4. If clearance is not correct, remove the
adjust plate lock nut and the adjust
plate.
5. Remove or add an adjust shim as re-
quired.
1. Adjust shim
NOTE: ________________________ _
Thicken shims increase pump stroke and out-
put, thinner shims decrease pump stroke and
output.
Air bleeding
The Autolube Pump and delivery lines must
be bled on the following occasions:
• Whenever the Autolube tank has run
dry.
• Whenever any portion of the Autolube
system is disconnected.
• If the machine lies on its side after falling
over.
2-5
1. Remove the pump cover and remove
the bleed screw.
1. Bleed screw
2. Keep the oil running out until air bubbles
disappear~
NOTE: ________________________ _
Check the bleed screw gasket, and if damag-
ed, replace with a new one.
3. When air bubbles are expelled complete-
ly, tighten the bleed screw and install
the pump cover.
4. Start the engine, pull the pump wire all
the way out to set the pump stroke to a
maximum.
NOTE: ________________________ _
It is difficult to bleed the distributor complete-
ly with the pump stroke at a minimum, and
therefore the pump stroke should be set to a
maximum.
5.
Keep the engine running at about
2,000
r/min for two minutes or so, and both
distributor and delivery pipe can be com-
pletely bled.