Suzuki Boulevard M50, Service Manual, Page: 34 / 454

2-18 PERIODIC MAINTENANCE
AIR BLEEDING THE COOLING CIRCUIT
• Add engine coolant up to the radiator inlet.
• Support the motorcycle upright.
• Slowly swing the motorcycle, right and left, to bleed the air
trapped in the cooling circuit.
• Add engine coolant up to the radiator inlet.
• Start up the engine and bleed air from the radiator inlet com-
pletely.
• Add engine coolant up to the radiator inlet.
• Repeat the above procedure until bleed no air from the radia-
tor inlet.
• Close the radiator cap securely.
• After warming up and cooling down the engine several times,
add the engine coolant up to the full level of the reservoir.
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Engine coolant capacity
Reverse tank side: 250 ml (0.26/0.22 US/Imp qt)
Engine side:
1 500 ml (1.59/1.32 US/Imp qt)
RADIATOR HOSES
• Check to see the radiator hoses for crack, damage or engine
coolant leakage.
• If any defects are found, replace the radiator hoses with new
ones.
Repeat the above procedure several times and make
sure that the radiator is filled with engine coolant up to
the reserve tank full level.
SA
MP
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