Inspection Of Low Pressure Fuel Filter; Inspection Of Air Compressor Air Filter; Inspection Of Air Pressure - TOHATSU MD 70-90C2 Service Manual

3) Inspection of Low Pressure Fuel Filter

· If red float 1 is floating in the filter,
water is in the cup.
· Remove the cup and drain the water.
Check fuel filter 2 for contamination, and fuel filter cup 3
for invasion of foreign matter and cracks. Clean fuel filter
cup with gasoline, and replace fuel filter 2 if necessary.
Since the high pressure fuel filter is disposable,
replace it periodically.

4) Inspection of Air Compressor Air Filter

Continuing engine operation with the air
filter clogged will lead to severe trouble of
engine speed and power.
1. Replace the air filter if it is severely clogged.
· The paper strainer of air filter turns brownish
when it is clogged. Replace the part if it is
brownish.
· Be sure to attach the filter air inlet pipe 1,
because it is for prevention of noise.

5) Inspection of Air Pressure

When attaching the pressure gauge ass'y,
screw in carefully until it is set securely.
Remove cap 1.
1.
Attach pressure gauge ass'y 2 to air pressure inspection
2.
valve 3.
Pressure gauge ass'y:
P/N. 3T5-72880-0
Set the lever of pressure gauge ass'y to position a.
3.
4. Measure air pressure while idling the engine or cranking
for 15 seconds.
The air pressure reduces gradually after stopping
the engine or cranking.
Air Pressure : Specified Value
0.61 - 0.70 MPa （88.47 - 101.53 psi） [6.1 - 7.0 kgf/cm
TLDI 75/90C2 2010
CAUTION
CAUTION
CAUTION
2
3
4 O Ring
Do not reuse.
2
2 ]
4
1
1
a
b b
3
1 1 1
3
3-7