Yamaha 2009 Wave Runner Operator's Manual page 52

Operation
Make sure that the reverse gate goes down
completely when the shift lever is pulled up.
Also, make sure that the reverse gate goes up
completely when the shift lever is pushed
down.
EJU32651
Jet intake
Carefully check the jet intake for weeds, de-
bris, or anything else that might restrict the in-
take of water. If the jet intake is clogged, clean
it. (See page 79 for jet intake cleaning proce-
dures.)
If the watercraft is operated while the jet in-
take is clogged, cavitation could occur, reduc-
ing jet thrust, and possibly damaging the jet
pump. In some cases, the engine may over-
heat because of lack of cooling water, and
47
damage to the engine could result. Cooling
water is fed to the engine by the jet pump.
EJU32661
Engine shut-off cord (lanyard)
Check that the engine shut-off cord (lanyard)
is not frayed or broken. If the cord is dam-
aged, replace it. WARNING! Never try to re-
pair the engine shut-off cord (lanyard) or
tie it together. The engine shut-off cord
(lanyard) may not pull free when the oper-
ator falls off, allowing the watercraft to
continue to run and cause an accident.
[EWJ01220]
EJU32671
Switches
ECJ00410
NOTICE
Do not run the engine for more than 15
seconds when checking the switches on
land without supplying water, otherwise
the engine could overheat.