ENGINE (YP250R)
3-32
3. Start the engine, warm it up for several min-
utes, and then turn it off.
4. Check:
• Coolant level
IP
Before checking the coolant level, wait a few
minutes until it settles.
EAS21120
CHECKING THE COOLING SYSTEM
1. Remove:
• Storage box
• Bottom cover
• Footrest board
Refer to “GENERAL CHASSIS” on page 4-1.
2. Check:
• Radiator “1”
• Radiator inlet hose “2”
• Radiator outlet hose “3”
• Radiator filler hose “4”
• Coolant reservoir hose “5”
• Thermostat cover “6”
• Thermostat inlet hose “7”
Cracks/damage → Replace.
Refer to “RADIATOR (YP250R)” on page 6-8
and “THERMOSTAT (YP250R)” on page
6-10.
3. Install:
• Footrest board
• Bottom cover
• Storage box
Refer to “GENERAL CHASSIS” on page 4-1.
EAS21130
CHANGING THE COOLANT
1. Remove:
• Bottom cover
Refer to “GENERAL CHASSIS” on page 4-1.
2. Remove:
• Coolant reservoir cap “1”
3. Disconnect:
• Coolant reservoir hose “2”
4. Drain:
• Coolant
(from the coolant reservoir)
5. Remove:
• Radiator cap “1”
WARNING
EWA37P1004
A hot radiator is under pressure. Therefore,
do not remove the radiator cap when the en-
gine is hot. Scalding hot fluid and steam may
be blown out, which could cause serious in-
jury. When the engine has cooled, open the
radiator cap as follows:
Place a thick rag or a towel over the radiator
cap and slowly turn the radiator cap counter-
clockwise to allow any residual pressure to
escape. When the hissing sound has
stopped, remove the cap.
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