Check Spark Plug; Inspect Muffler Assembly; Clean Cylinder Fins - Echo QV-8000 Instruction Manual

Check spark plug

(As Needed)
1. Check plug gap.
2. Inspect electrode for wear.
3. Inspect insulator for oil or other deposits.
4. Replace plug if needed and torque to 15 - 17
N m (130 to 145 in. lb.).
•
Fuel vapors are extremely flammable and
may cause fire and/or explosion. Never test
for ignition spark by grounding spark plug
near cylinder plug hole, otherwise serious
personal injury may result.

Inspect muffler assembly

(As Needed)
• Remove air cleaner cover and remove spark plug
lead.
• Remove muffler lid, spark arrestor screen cover
and screen from muffler body.
• Clean carbon deposits from muffler components.
• Replace screen if it is cracked, or has holes
burned through.
• Assemble components in reverse order.

Clean cylinder fins

(As Needed)
1. Check periodically.
2. Clogged fins will result in poor engine cooling.
3. Remove dirt and dust from between fins to let
cooling air pass easily.
MAINTENANCE
DANGER
NOTE
Proper gap is 0.6 to 0.7 mm (0.024 to 0.028 in.)
0.6 to 0.7 mm
(0.024 to 0.028 in.)
NOTE
• Carbon deposits in muffler will cause drop in
engine output. Spark arrestor screen must be
checked periodically.
Muffler lid
Screen cover
Spark arrestor screen
NOTE
Clogged fins will cause poor engine cooling.
23
Muffler
QV-8000 TYPE1-E