HONDA HS520AS - Manual (Page 25)

SERVICING YOUR HONDA SNOWTHROWER
23
FUEL RECOMMENDATIONS
Use unleaded gasoline with a pump octane rating of 86 or higher.
These engines are certified to operate on unleaded gasoline.
Unleaded gasoline produces fewer engine and spark plug deposits
and extends exhaust system life. Never use stale or contaminated
gasoline or an oil/gasoline mixture. Avoid getting dirt or water in the
fuel tank. Occasionally you may hear a light “spark knock” or “pinging”
(metallic rapping noise) while operating under heavy loads. This is no
cause for concern. If spark knock or pinging occurs at a steady engine
speed, under normal load, change brands of gasoline. If spark knock
or pinging persists, see an authorized Honda servicing dealer.
NOTICE
Running the engine with persistent spark knock or pinging can cause
engine damage. Running the engine with persistent spark knock or
pinging is misuse, and the Distributor's Limited Warranty does not
cover parts damaged by misuse.
ENGINE OIL
Oil Level Check
Check the engine oil level with the
snowthrower stopped and in a level position.
1. Remove the oil filler cap/dipstick and
wipe it clean.
2. Insert and remove the dipstick without
screwing it into the filler neck.
3. If the level is low, fill to the edge of the oil
filler hole with the recommended oil
(page25).
4. Reinstall the oil filler cap/dipstick.
NOTICE
Running the engine with a low oil level can cause engine damage.
UPPER LIMIT
HS520.book Page 23 Monday, May 14, 2001 12:36 PM