Publicité
6'. ADJUSTMEN. AND MAINTENANCE
Engine
Symptom
o
Poor starting
Poor operation
Poor output pDWllr
Tiller
Shift mechanism comes our
during operation
V·belt rotates along with
or slips
Oil leaks from the side of
gear case
Probable Causes
Incorrect starting procedures
Insufficient fuel
Excessive fuel
Poor fuel
Poor compression
Poor ignition
Poor adjustment of carburetor
Irregular engine rotation or
over-heating
Poor compression
Poor adjustment of carburetor
Defective air cleaner
Weakening of shifter spring
Improper location of engine
Improper adjustment of belt
stopper
Improper adjustment of main
dutch
Sticking of oil on belt face
Excessive oiling
Wear'lng out of Q-ring or
oil seal at each section
-
100heures).
•
Vidanger I'huile de
toutes les 100 heure,).
(3) Entretien
marche.
•
Effectuer les operations d'e'ntretien ex-
pliquees plus haut en
les 100 heures).
•
Nettoyer I'element dLi filtre
• Nettoyer les bougies.
How to correct
• Follow correct starting procedures.
• Check the oil Jevel of the tank
• Check the fuel channel from the fuel tank to the carburetor, E1nd
clean the channel if it is clogged.
• See
the choke valve is closed, and open
if
• See H the air cleaner is clogged, and clean it
• Use specified fuel.
• See if dust or water is mingled in fuel, and remove it if mingled.
• Retighten cylinder head retaining bolts.
• See if- spark plug packings or gasket are broken, and replace them
if nay.
• If valve seat is deformed, have it repaired at a work shop.
• If piston ring is worn out or stuck, have it repaired or replaced
at a work shop.
• If
spark plug insulation is not good due to carbon or dirt, clean it.
• Adjust the electrode clearance to be 0.6 - 0.7 mm,
If the electrode of spark plug is burnt down or broken, replace it.
the contact breaker; ,points ,are smeared with ,oiL,or ,dir.t,' clean
• If
them.
• If the contact breaker points are burnt down, have them repaired
or replaced at a work shop.
• Adjust the contact breaker clearance to be 0.3 '" 0.5 mm.
• If condenser or high voltage cord is defective. replace it.
• Slow jet adjusting screw should
KC-350
&
KC-35DF and 6/8 turn for KC450
fully closed position. If it is not correctly adjusted, readjust it.
• Careless adjustment may cause trouble. Adjust it at a repair shop.
• See if cylinder head and spiral case are blocked with dirt, clean it
if any.
• See if carburetor is improperly adjusted. and adjust it properly jf
found any.
• See if jgnition system is functior:ing poorly. and readjust it if so.
• See if compression is poor, and correct it if so,
• Take measures to correct poor compression.
• Take measures to correct poor adjustment of carburetor.
• If air cleaner is clogged, clean it.
• Replace it with a new one,
• Replace it with a new one.
• Adjust engine location by loosening four engine fitting bolts.
• Adjust it'by loosening belt stopper fitting bolt.
• Adjust wire as specified.
• Wipe oil with dry cloth.
• Drain oil until its level appears at the inlet at the side of gear case.
• Replace it with a new one.
lUU l",,,""n:::::>
(apres,
toutes les 100 heures de
(1).
(Apres, toutes
carburant.
-
&
add fuel
if it
is insufficient.
is closed.
it if it
it is clogged,
if
adjusted to 7/8 turn for
be
&
KC-450F from
Publicité
