Carburetor adjustment
Engine Break-In
New engines must be operated a minimum duration of two tanks of fuel
High Altitude Adjustment
This engine has been factory adjusted to maintain satisfactory start- ing, emission, and durability performance up to 1,000 feet above mean sea level (MSL). To maintain proper engine operation above 1,000 feet MSL the carburetor must be adjusted by an authorized Shindaiwa service dealer.
Important
If the engine is adjusted for operation above 1,000 feet MSL, the carburetor must be
Level 2.
Tools required: Screwdriver, tachometer
Parts required: None.
NOTE
Every unit is run at the factory and the carburetor is set in com- pliance with emission regulations. This carburetor does not have acceleration adjustment needle.
1.Before adjusting the carburetor, clean or replace the air filter and spark arrestor screen and install blower pipes.
2.Start engine and run for several minutes to reach operating temperature.
3.Stop engine. Turn red HI speed needle (A) CCW (counter clock- wise) to stop.
4.Idle Speed Adjustment with tachometer.
•Start engine and turn “idle” speed adjustment screw (B) to idle RPM found on page 24 “Specifications” section of this manual.
5.Accelerate to full throttle for
6.Check HI speed RPM at W.O.T. (Wide Open Throttle). HI speed
RPM should be set to specifications found on page 24 “Specifica- tions” of this manual.
7.Check idle speed and reset if necessary.
ENGLISH
A
B
21