DLA ENGINE OPERATING-INSTRUCTION
MANUAL
04-21-21 Copyrighted Material
Owner’s Manual All Rights Reserved 03180-10000
Page - 52 DLA 32, 58, 64, 64-I2, 116, 116-I2 & 128cc, 180c, 232cc Rev. A.05.15
1. The Mechanical Idle Adjustment Screw is simply a mechanical advancement or decrement
of the carburetor’s butterfly throttle.
2. Adjust to the Mechanical Adjustment Screw to the lowest idle that keeps the engine
running and does not cause any aircraft forward motion at idle rpm.
3. If you plan to stop the engine by completely closing the butterfly-throttle, then you will
need to remove the Mechanical Idle Adjustment Screw or back it out far enough to allow
the butterfly to completely close. Do not attempt to remove the spring that returns the
butterfly value to the low position.
NOTE: On the 116cc-I2 and the 128cc QUAD richen the high-needle on the rear cylinder/bank
carburetor by about 1/16 to 3/32 turns to help cool these cylinders, if they are running too hot; or
even more so, in the event of a particularly hot flying day.
DLA32cc Carb DLA 58cc Carb
DLA 64cc Carb DLA 116cc Carb
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