Subaru EX13 Service Manual page 107

8-5 INSPECTION AND MAINTENANCE EVERY 300 HOURS
MAINTENACE ITEMS
(1) Inspect the intake and exhaust valve clearance .
Adjust if necessary .
8-6 INSPECTION AND MAINTENANCE EVERY 500 TO 600 HOURS (EVERY 6 MONTHS)
MAINTENACE ITEMS
(1) Remove the cylinder head and remove any carbon .
(2) Disassemble and clean the carburetor .
8-7 MAINTENANCE EVERY 1,000 HOURS (ANNUAL MAINTENANCE)
MAINTENACE ITEMS
(1) Overhaul the engine . Clean and correct the engine
parts, replacing if necessary .
(2) Replace the piston rings .
(3) Replace the fuel hose .
8-8 ENGINE STORAGE
(1) Carry out the maintenance jobs described in step 8-1 above .
(2) Drain fuel from the fuel tank and carburetor float chamber .
(3) To prevent rust in the cylinder bore, inject oil through the spark plug hole, pull the recoil starter
knob gently 2 or 3 times and then put back the spark plug .
(4) Pull the recoil starter knob until the resistance is heavy . Leave it in that position .
(5) Clean the exterior of the engine with an oiled cloth . Place a plastic cover or similar over the
engine, and store the engine in a dry place .
REASON / REMARKS
(1) Incorrect clearance can cause low power output
and engine malfunction .
REASON / REMARKS
(1) Carbon deposits can cause engine malfunction .
(2) A faulty carburetor can cause engine malfunction .
REASON / REMARKS
(1) Dirty, misaligned or worn parts can cause low power
output and engine malfunction .
(2) Faulty piston rings can cause low output power and
engine malfunction .
(3) To prevent fuel leakage and attendant dangers .
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