Checking The Radiator - Yamaha YZF-R1 1998 Service Manual

RADIATOR
EB500010

CHECKING THE RADIATOR

1. Check:
• radiator fins
Obstruction → Clean.
Apply compressed air to the rear of the
radiator.
Damage → Repair or replace.
NOTE:
Straighten any flattened fins with a thin,
flat-head screwdriver.
2. Check:
• radiator hoses
Cracks/damage → Replace.
3. Measure:
• radiator cap opening pressure
Below the
Replace the radiator cap.
Radiator cap opening pressure
95 ~ 125 kPa
(0.95 ~ 1.25 kg/cm
1.25 bar)
a. Install the radiator cap tester 1 and
adapter 2 onto the radiator cap 3 .
Radiator cap tester
90890-01325
Adapter
90890-01352
b. Apply the specified pressure for ten
seconds and make sure that there is
no drop in pressure.
4. Check:
• radiator fan
Damage → Replace.
Malfunction → Check and repair.
Refer to "COOLING SYSTEM" in chap-
ter 8.
5 - 3
COOL
specified pressure
2
, 0.95 ~
→