Jet Pump - Yamaha WaveRunner FX140 Service Manual

JET PUMP

A large jet pump with a 155 mm (6.1 in) diameter, three-blade, stainless steel impeller provides
more power and thrust.
With the jet pump mounted on the vertical plane of the hull, servicing is made easier.
A cooling water strainer is incorporated into the jet pump, which prevents the cooling water pas-
sages from clogging.
The jet thrust nozzle has a 5° trimmed up angle, which allows higher straight line cruising perfor-
mance.
A newly designed reverse gate raises efficiency of water flow in the reverse position for easier han-
dling when operating the watercraft in reverse.
Fig. 11
11