State 3 Engine Rotation Is Unstable Or - TOHATSU MFS 25D Service Manual

O
Troubleshooting
K
State 3 Engine rotation is unstable or hunting occurs in low speed range.
Check throttle position sensor
and ISC valve connectors for
connections and resistances.
Normal?
Check throttle link and
throttle valve for play and
wear.
Normal?
Check intake manifold for
air leak.
Normal?
9-14 4st 25/30 2022