Troubleshooting; Engine Does Not Start Or Is Hard To Start - Honda 86-87 TA200 FATCAT Service Manual

18. TROUBLESHOOTING
POOR HANDLING 18-4 ENGINE DOES NOT START OR IS
HARD TO START 18- 1
18-2
UNDER CHARGE/OVER CHARGE OF THE
ENGINE LACKS POWER 8ATTERY 18-5
POOR PERFORMANCE AT LOW
AND IDLE SPEEDS
WEAK OR NO SPARK
18-3
POOR PERFORMANCE AT HIGH SPEEDS 18-4
ENGINE DOES NOT START OR IS HARD TO START
1. Check if fuel is getting
to carburetor
GETTING TO CARBURETOR
j
2. Try spark test
GOOD SPARK
3 . Test cylinder compression
COMPRESSION NORMAL
I
4. Start by following normal st arting
procedure
ENGINE DOES NOT START
I
5 . Remove spark plug
DRY
I
NO FUEL TO - - - - - -- -_
• (11
CARBURETOR 121
131
141
WEAK OR NO SPARK
• (11
121
1 31
1 41
151
161
171
1 81
191
(10)
LOW COMPRESSION - - - - - _
· 0)
ENGINE STAATS BUT
SOON STOPS
WET PLUG
•
•
121
131
141
151
161
(7)
111
121
131
1 4 1
15'
161
111
121
131
14,
151
18-6
Probable Cau se
No fuel in fuel tank
Clogged fuel hose or fue l filter
Clogged IIoa1 valve
Clogged fuel tank cap breather
tube
Faulty spark plug
Fouled spark plug
Faulty COl unit
Broken or shorted spark plug
wire
Faulty alternator
Broken or shorted ignition coil
Faulty pulse generator
Poorly connected, broken or
shorted wires
Pulse generator rotor gap incor-
rect
Faulty Ignition or engine stop
switch
low battery charge
Valve clearance too small
Valve stuck open
Worn cylinder and piston rings
Damaged cylinder head gasket
Incorrect valve seat contact
improper valve timmg
Restricted fuel tine
IncorreCt choke cable free play
Improperly adjusted air screw
Air leaking past carburetor insu-
lator
Improper ignition timing (COl unit
or pulse generator faulty)
Fuel/ aIr mixture too lean
Carburetor flooded
Choke valve stuck closed
Fuel/air mixture too rich
Air cleaner dirty
Improperly adjusted air screw
18-1
1m