Maintenance and care
If the reverse gate does not make contact with the stopper, have a Yamaha dealer service it.
EJU34360
Checking and adjusting the throttle cableCheck that the throttle cable moves back to the set position smoothly and that the throttle lever free play is within specification.
(1)Squeeze and release the throttle lever. If the throttle lever does not return smooth- ly, have a Yamaha dealer service it.
(2)Adjust the free play by loosening the lock- nut and turning the adjuster.
1Locknut
2Adjuster
3Throttle lever free play
Throttle lever free play:
EJU34391
Cleaning and adjusting the spark plugsThe spark plug is an important engine component and is easy to inspect. The condition of the spark plug can indicate something about the condition of the engine. For example, if one spark plug has a distinctly different color, the engine could require servicing. Do not attempt to diagnose any problems yourself. Have a Yamaha dealer service the watercraft. Remove and inspect the spark plugs periodi- cally; heat and deposits will cause the spark
plugs to slowly break down and erode. If electrode erosion becomes excessive, or if carbon and other deposits are excessive, replace the spark plug with the specified plug.
Specified spark plug:
CR9EB
To remove a spark plug:
(1)Remove the seat. (See page 28 for seat removal and installation procedures.)
(2)Remove the spark plug cap.
ECJ00210
CAUTION:
Do not use any tools to remove or install the spark plug cap, otherwise the ignition coil coupler could be damaged. The spark plug cap may be difficult to remove because the rubber seal on the end of the cap fits tightly. To remove the spark plug cap, simply twist it back and forth while pulling it up; to install it, twist it back and forth while pushing it down.
(3)Remove the spark plug.
Measure the spark plug gap with a wire thickness gauge. Replace the spark plug or adjust the gap to specification if neces- sary.
1Spark plug gap
Spark plug gap:
77