Subaru Robin EX13 - Manual (Page 105)

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Check engine
spark
ENGINE WILL NOT START
Spark plug improperly
gapped, dirty or fouled
or defective
Wiring damaged
Clean, regap or replace
as necessary
Repair of replace
Leaking gaskets at
throttle body or spacer
(insulator)
Poor fuel quality or water
in system
Replace
Flush and/or refill
Compression or
core component
problems
Engine does not start
Good
Loose spark plug
Worn piston, rings or
cylinder head
Repair
None
Tighten
None or Weak
Ignition coil - wrong gap
to flywheel or defective
Repair of replace
None or Weak
None or Weak
Fuel system
problems
Hoses for fuel supply, return
or pump pulse restricted
or leaking
Clean or replace
Throttle body clogged or
damaged
Clean or replace
Possible
Possible
Possible
Possible
Leaking at cylinder head
Retorque Loose head bolts
Bad head gasket Replace
Leaking at valves
Repair Improper contact
at valve and seat
Valve stuck in
guide
Repair
Check or reset
valve clearances
Check for condition of cam,
chain and rockers
Repair as required