Adjusting Engine Speed (Kohler Efi Units [Ech-730]) - Miller TRAILBLAZER 275 DC Owner's Manual

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A complete Parts List is available at www.MillerWelds.com

8-9. Adjusting Engine Speed (Kohler EFI Units [ECH-730])

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OM-4426 Page 44
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After tuning engine, check engine
speeds with a tachometer (see
table). If necessary, adjust speeds
as follows:
2200 − 2300 rpm
Start engine and run until warm.
(36.6 − 38.3 Hz)
Turn A/V control to 10.
3675 − 3750 rpm
Remove rear panel and air cleaner
(61.3 − 62.5 Hz)
to access idle speed adjustments.
Remove top cover to access weld/
power speed adjustments.
Idle Speed Adjustment
Move Engine Control switch to
Run/Idle position.
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3
Loosen mounting screw. Adjust so-
lenoid position so engine runs at
idle speed. If necessary, back out
idle speed screw so solenoid can
be moved to correct position. Tight-
en mounting screw. Be sure sole-
noid linkage works smoothly.
Turn idle speed screw for fine
adjustments.
Weld/Power Speed Adjustment
Move Engine Control switch to Run
position.
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Loosen lock nut. Turn adjustment
nut until engine runs at weld/power
speed. Tighten lock nut.
Close and secure top cover access
panel.
!
Reinstall air cleaner, end panel, and
top cover.
Throttle Solenoid
Mounting Screw
Idle Speed Screw
Weld/Power Speed
Adjustment Nut
Lock Nut
Stop engine.
Tools Needed:
1/4, 3/8 in.
246 197-A / 246 198-A