Poor Performance At Low (And High Speeds) - Honda 86-87 TA200 FATCAT Service Manual

9. Check ignition timing
CORRECT
I
10. Test cylinder compression using
a compression gauge
NORMAL
I
11 . Check carburetor for clogging
12.
13.
NOT CLOGGED
I
Check valve clearance
CORRECT
I
Remove cylinder head cover and
inspect lubrication
VALVE TRAIN LUBRICATED
PROPERLY
TROUBLESHOOTING
INCORRECT - - - - - - - - -_. (11 Faulty COl unit
(2) Faulty pulse generator
(3) Improper flywheel installation
TOO LOW - - - - - - - - - - -•• 11) Low battery charg e
12) Valve clearance to o small
(3) Valve stuck open
(4) Worn cylinder and piston rings
(5) Damaged cylinder head gasket
(6) Incorrect valve seat contact
(7) Improper valve timing
CLOGGED - - - - - - - - - -- ... Carburetor not serviced frequently
enough
INCORRECT - - -- - -- - - -_ .. (1) Improper valve adjustment
(21 Worn valve seat
VALVE TRAIN NOT LUBRICATED _ (1)
PROPERLY (2)
Clogged oil passage
Clogged oil strainer
POOR PERFORMANCE AT LOW AND IDLE SPEEDS
1. Check carburetor air screw adjust-
ment
CORRECT
2. Ch\ Ck jf air is leaking past
carburetor insulator
NOT LEAKING
I
3. Try spark test
GOOD SPARK
I
4 . Test cylinder compression using
a compression gauge
COMPRESS ION NORMAL
I
5 . Check ignition timing and valve
clearance
CORRECT
Probable Cause
INCORRECT - - - - - - - - - - _ . Improperly adjusted air screw
LEAKING - - - - -- - -- - -_. (1) Deteriorated insulator O-ring
(2) Loose carburetor
W EAK OR INTERMITTENT--- - -•• (1) Faulty, carbon or we I fouled spark
SPARK plug
(2) Faulty COl unit
(3) Alternator faulty
(4) Faulty Ignition coil
(5) Faulty pulse generator
LOW COMPRESSION
-------.~
11) Low battery charge
(2) Valve clearance too small
13) Valve stuck open
(4) Worn cylinder and piston rings
(5) Damaged cylinder head gasket
16) Incorrect valve seat contact
(7) Improper valve timing
INCORRECT -----------.~ 11) Improper valve clearance
(2) Improper ignition timing IFaulty
COl unit or pulse generator)
18-3