Honda TRX70 Fourtrax 1986 User Manual

TROUBLESHOOTING
ENGINE LACKS POWER
•
ProbalbM c.u ..
1. Raise wheels off ground and
WHEELS 00 NOT SP1N
• (1)
Brake dragging
•
spin by hand
FREELY (21 Worn or damaged wheel bearing
(31 Wheel bearing needs lubri catio n
WHEELS SPIN FREELY 141
Dri ve chain too tight
I
2. Check tire pressure with the gauge
PRESSURE TOO lOW
- (1)
Punctured tire
(21 Faulty tire valve
•
PRESSURE NORMAL
I
3. Check clutch slippi ng
CLUTCH SUPS
. m
Weak clutch spring
•
(21 Worn clutch disc/p late
NORMAL
(31 Warped c lu tch disc / plate
I
•
4. Ughtly accelerate engine ENGINE SPEED NOT
• (1 )
Fuellair mixture too rich or lean
IN CREASED SUFFICIENTLY (21 Clogged air cleaner
ENGINE SPEED INCREASED (31 Restricted air ve nt tube
I
(41
Clogged fuel tank cap breather
hoi.
(51 Clogged muffler
5. Check ignition timing INCORRE CT
• (1)
Faulty COl unit
•
121
Faulty pulse generator
CORRECT (31 Im proper flywhee l installation
+
6. Test cylinder compression TOO LOW • (1)
Velve stuck ope n
using a
compression gauge
121
Worn cylinder and piston rings
(31 Le aking head gasket
NORMAL
141
Improper valve timing
l
151
Incorrect velve seat contact
7. Check valve clearance
INCORRECT
• (1)
I mproper valve adjustment
121
Worn val ve seat
CORRECT
I
B. Check carburetor for clogging CLOGGED .. Ca rbur etor not serviced frequently
enough
NOT CLOGGED
I
9. Remove spark plug FOULED OR DISCOLORED
.. (11
Plug not serv iced frequently
enough
NOT FOULED OR
121 Use of pl ug with Improper heat
DISCOLORED
range
16-2

Honda TRX70 Fourtrax 1986 Specifications

General

Brand	Honda
Model	TRX70 Fourtrax 1986
Category	Offroad Vehicle
Language	English