Robin ECO2 User Manual

8. TROUBLE SHOOTING
For a gasoline engine to start and run satisfactorily, the following three requirements must be met:
1) The cylinder filled with a proper fuel-air mixture.
2) An appropriate compression in the cylinder.
3) Good spark at correct time to ignite the mixture.
If all the three requirements are not met simultaneously, an engine can not be started. There are also other factors
such as
heavy load at starting and
too long an exhaust pipe causing a high back pressure, which contribute to hard starting. The
most common causes of engine troubles are given below.
8-1 STARTING DIFFICULTIES
Cause
Defects
in spark plug
Defects in contact
cable
Defects in contact
breaker
Defects in magneto
Other defects in
electric system
Gas leak from
combustion chamber
Defects in piston
assembly
Defects in fuel tank
system
Remedy
1) If contaminated, wash in gasoline, remove
2) If spark plug is broken and lost insulation,
3) Adjust spark gap to 0.6-0.7mm
(.024-
foreign material and dry.
replace plug.
,027").
If cable is burnt, replace cable along with coil.
1) If breaker points are rough, smooth out
surface with emery paper
(#400).
2) If breaker point gap is incorrect, adjust it to
specified 0.35t0.05mm by loosening con-
tact support plate lock screws.
3)
If spark timing is incorrect, adjust it to
23" - 27' before TDC.
4) If breaker is defective in insulation, replace
breaker.
5) If condenser is defective, replace.
1) If wire or insulation is broken, replace
2) If magnetism is weak, re-magnetize (at the
magneto.
magneto maker)
or replace.
1) If kill switch is faulty, (short circuiting)
replace or repair.
2) If primary wire is grounded to the engine
body, insulate
it with insulating adhesive
tape.
1) If spark plugs are loose, tighten.
2) If spark plugs are defective, replace.
1) If piston is worn, replace.
2) If piston rings are worn, replace.
31 If piston rings are stuck, clean or replace
rings.
1) Clean clogged tank outlet.
2) Clean clogged fuel strainer.
3) If incorrect fuel is poured into tank or
water is mixed, drain tank completely and
fill
it with correct fuel.
4) When fuel pipe is locked with air, expel1 air.
5) If there is any crack or damage in the
rubber components of fuel line system,
due
to their deteroriation, replace.
- 13 -
Preventive measure
1) Use spark plugs of specified heat range. Do
not
use poor grade oil. Clean air cleaner and
avoid dust entry.
2) When spark gap is adjusted, if center elec-
trode
is hit or bent, insulator may get
damaged.
1 ) Keep air cleaner always clean.
2) Do not use poor grade oil. Change oil
regularly.
1) Be sure to use a filter when adding fuel.
2) Use mixture (gasoline 20 - 25 : oil 1 I as fuel

Robin ECO2 Specifications

General

Brand	Robin
Model	ECO2
Category	Engine
Language	English