Diagnostic Information And Procedures; Engine Lubrication Symptom Diagnosis; Oil Pressure Check - Suzuki GSX1300R Manual

1E-5 Engine Lubrication System:

Engine Lubrication Symptom Diagnosis

Condition
Engine overheats
Exhaust smoke is dirty or
thick
Engine lacks power

Oil Pressure Check

Check the engine oil pressure periodically. This will give
a good indication of the condition of the moving parts.
NOTE
Before checking the oil pressure, check the
following.
• Oil level (Refer to "Engine Oil and Filter
Replacement in Section 0B (Page 0B-10)".)
• Oil leaks (If leak is found, repair it.)
• Oil quality (If oil is discolored or
deteriorated, replace it.)
1) Remove the right side cowling. Refer to "Exterior
Parts Removal and Installation in Section 9D
(Page 9D-14)".
2) Start the engine and check if the oil pressure
indicator light is turned on. If the light stays on, check
the oil pressure indicator light circuit. If the circuit is
OK, check the oil pressure in the following manner.
3) Remove the main oil gallery plug (1).

Diagnostic Information and Procedures

Possible cause
Insufficient amount of engine oil.
Defective oil pump.
Clogged oil circuit.
Clogged oil cooler.
Incorrect engine oil.
Excessive amount of engine oil.
Excessive amount of engine oil.
B815H21504002
1
I815H1150001-01
Correction / Reference Item
Check level and add.
Replace.
Clean.
Clean or replace.
Change.
Check level and drain.
Check level and drain.
4) Install the oil pressure gauge and attachment to the
main oil gallery.
Special tool
(A): 09915–74521 (Oil pressure gauge hose)
(B): 09915–74540 (Oil pressure gauge
attachment)
(C): 09915–77331 (Meter (for high
pressure))
(B)
(A)
5) Warm up the engine as follows:
Summer: 10 min. at 2 000 r/min
Winter: 20 min. at 2 000 r/min
6) After warming up, increase the engine speed to 3
000 r/min (Observe the tachometer), and read the oil
pressure gauge.
If the oil pressure is lower or higher than the
specification, the following causes may be
considered.
Oil pressure specification
200 – 500 kPa (2.0 – 5.0 kgf/cm
at 3 000 r/min, Oil temp. at 60 °C (140 °F)
High oil pressure
• Engine oil viscosity is too
high
• Clogged oil passage
• Combination of the
above items
B815H21504001
(C)
I815H1150002-01
2
, 28.4 – 71.1 psi)
Low oil pressure
• Clogged oil filter
• Oil leakage from the oil
passage
• Damaged O-ring
• Defective oil pump
• Combination of the
above items