Honda XL350R 1984 Shop Manual page 231

10. Remove oil level gauge and
check oil level and for dirty
oil
CORRECT
!
11. Remove cylinder head cover
and inspect lubrication
12,
VALVE TRAIN LUBRICATED
PROPERLY
!
r-'--'""
13. Accelerate or run at high speed
ENGINE DOES NOT KNOCK
TROUB L ESHOOTIN G
Oil lEVEL INCORRECT' - - - - -• • (1) 011 level too high
(2) Oi l level too low
(3) Contaminated oil
VALVE TRAIN NOT - - - - - -_. (1) Clogged oil passage
LUBRICATED PROPERLY (2) Clogged oil control orifice
OVERHEATED'- - - - - - - - - - -
0
111
Excessive
carbon build-up
combustion chamber
;n
12) Use of improper quality of fuel
13) Clutch slipping
14)
Fuel air mixture too lean
ENG INE K N O C K S - - - - - - -
0
11) Worn piston and cylinder
12) Fuel air mixture too lean
13) Use of improper grade of
fuel
14) Excessive carbon
build-up
;n
combustion chamber
IS) Ignition timing 100 advanced
(Faulty COl unit)
POOR PERFORMANCE AT LOW AND IDLE SPEEDS
"
Check ignition timing and
.... al .... e clearance
CORRECT
!
2,
Check carburetor air screw
adjustment
CORRECT
j
3, Check if air is leaking past
intake pipe
NOT LEAK ING
I
4,
Try spark test
GOOD SPARK
Probable Cause
INCOR A ECT'--------------------- -
t1)
Improper .... al .... e clearance
(2) Improper ignition tim ing (Faulty
COl unit)
INCOARECT'--------------------- - (1) Fuel-air mixture too lean
(To correct, screw in)
(2) Fuel-air mixture too rich
(To correct, screw out)
LEAKING ---------------------- - (1) Deteriorated insulator O-ring
(2) loose carburetor
WEAK OR INTERMITTENT
-----0 .
(1) Faulty, carbon or wet touled
SPARK spark plug
(2) Faulty COl unit
(3) Alternator faulty
(4) Faulty ignition coil
(5) FaUlty pulse generator
19-3