18
EXHAUST
SYSTEM
Spark Arrestor Screen
Level 2.
Tools required: 3 mm Allen wrench, Cross Head Screwdriver,
Soft metal brush
Parts Required: Screen P/N 14586240630, Gasket Lid P/N 14586642031
1. Remove engine cover. See “Cleaning Cooling System” pages
16 & 17 for step by step instructions.
2. Place piston at Top Dead Center (TDC) to prevent carbon/dirt
from entering cylinder.
3. Remove spark arrestor screen cover (A), gasket (B), gasket (C) and
screen (D) from muffler body.
4. Clean carbon deposits from screen and muffler components.
NOTE
When cleaning carbon deposits, be careful not to damage the
catalytic body.
5. Replace screen if it is cracked, plugged or has holes burned through.
6. Assemble components in reverse order.
NOTE
When installing the cylinder cover, be certain the muffler gasket
tabs are locked into the muffler grill slots and the stop switch lead
is routed through the relief slot.
CARBURETOR
ADJUSTMENT
Engine Break-In
New engines must be operated a minimum duration of two tanks of fuel
break-in before carburetor adjustments can be made. During the break-
in period your engine performance will increase and exhaust emissions
will stabilize. Idle speed can be adjusted as required.
High Altitude Adjustment
High altitude adjustment is not required for proper operation of this
engine.
Level 2.
Tools required: Screwdriver, Tachometer (ECHO P/N 99051130017).
Parts required: None.
A
B
C
D
