Echo HCA-2500 - Manual (Page 10)

SERVICE INFORMATION HCA-2500
10
2-3 Adjusting carburettor (Continued)
8. After adjusting carburettor, put new limiter cap on
the other side of limiter cap tool as shown, and press
the limiter caps to the bottoms on L and H mixture
needles respectively.
NOTE : Align the limiter cap’s tabs (A) with locating
slots (B) in extended housing of carburettor.
IMPORTANT : The limiter caps must be installed
L and H mixture needles to comply with
Emission Directive.
9. Start engine again and make sure engine runs
at idle speed in the range of 2,400 to 3,200 r/min
and at WOT engine speed in the range of 9,000 to
10,500 r/min. Also make sure blade would not move
at engine idle speed and suitable acceleration.
NOTE : Initial carburettor setting (Idle adjust screw,
L and H mixture needles) shown on page 3 and 8 is
to start the engine after restoration or carburettor
change. Idle adjust screw, L and H needles turn for
designated engine revolution through procedures
indicated here may vary. As long as idle and WOT
engine speed is set in given range, variance would
be ignorable.
H
L
(A)
(B)
(B)
(A)