BRP 2995 Johnson - Idle Speed; Ignition Timing

IDLE SPEED
Check throttle link mechanism and carburetor
throttle valve for smooth operation.
Connect a shop tachometer to the engine.
Start and warm the engine.
Check engine
idle speed:
• 850 to 950 RPM
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IMPORTANT: Check and/or adjust idle speed
after the engine speed has
stabilized.
If idle
speed is out of specification, adjust as fol-
lows:
Turn the throttle stop screw:
• Clockwise: Engine speed increases
• Counterclockwise: Engine speed decreases.
1. Throttle stop screw
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MAINTENANCE
IDLE SPEED
IGNITION TIMING
IMPORTANT: Before checking ignition timing,
make sure idle speed is adjusted within specifica- '
tion.
Start and warm the engine.
Connect a shop tachometer and timing
light to the
engine.
Check the ignition timing
while operating the
engine at
1000 RPM.
Ignition timing:
• 5° ATDC @ 1000 RPM
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