Filter
Top Products
10-5.
ROUGH
IDLING
Possible
causes
I
Remedy
~
I
I
I
I
1)
Low
idling speed
I
Adjust
I
I
2)
Carburetor slow system passage clogged
I
Check and clean
2.
Intake
svstem svstem
1)
Air mixing from connecting portion
of
air intake
Check
,
tighten or replace gasket
3.
Cylinder
I
head
I
1)
Cylinder head gasket faulty (blow-by)
I
Replace
1)
Improper valve clearance
Adjust valve seat contact
2)
Leakage from valve seat
4.
Valve system
Adjust
3)
Excessive clearance between valve stem and guide
Replace
1
1)
Weak ignition spark
system
1
Check and replace spark plug
10-6.
HtGH
ENGINE
OIL
CONSUMPTION
Phenomenon
I
Possible
causes
I
Remedy
I
1.
Oil leakage
2.
Oil dilution
I
1)
Loosen drain plug
I
Tighten
I
I
2)
Drain plug gasket damaged
I
Replace
I
3)
Incorrect oil filter frtting
Tighten
4)
Loosen
main
bearing cover bolts
Repair
Repair
or
replace
6)
Breather faulty
Adjust oil level
5)
High
oil
level
Replace
4)
Excessive wear
of
valve stem
Replace
3)
Excessive wear
of
piston and cylinder
Replace
2)
Piston
rings
seizure, wear
or
poor
contact
Replace
1)
Piston oil ring faulty
Replace
6)
Crankshaft oil seal damaged
Replace
5)
Main bearing cover gasket damaged
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