Idle Engine Speed Will Not Stabilize - TOHATSU MX 50D2 Service Manual

State 3

Idle engine speed will not stabilize.

• Inspection of Intake Manifold, Air Intake System, Ignition System and Fuel system.
heck operations of throttle
cable and drum.
Normal?
YES
heck ignition timing.
Is the timing out
of specification?
YES
Adjust ignition timing.
2st X50D2 2011
NO
Adjust throttle cable.
NO
Check gaskets if
secondary air is sucked
through them.
NO
Clean carburetor and/or
replace defective part(s)
with new one(s).
GB
9
9-11