Pro Boat PRB3250BD User Manual

Page 6

Maneuver the Formula Hydro in an oval, turning
only to the right at slow to medium speeds. Make
certain the boat and radio system are functioning
correctly.

As you are running the Formula Hydro in an oval,
watch for water being discharged from the water
outlets on the left side of the hull. Water flowing
from the water outlet indicates the engine is being
properly cooled. If you do not notice any water
coming from the water outlet, bring the boat in and
make sure that the water cooling line or the water
pickup located near the rudder is not clogged.

If at anytime you notice the boat and/or radio
system are not functioning correctly, end the
operation of the boat immediately and do not run
the boat again until you are confident the problems
have been corrected.

Idle the boat near shore and press the kill switch
located on top of the cockpit as shown.

Section 11: Initial Launch of the Formula Hydro

Section 12: Stopping the Engine

Water Pump

The water pump is operated from crankcase
pressure. Be sure that water is exiting the 2 water
jackets mounted on the left side of the boat when
the engine is running and the boat is in the water. If
water does not stream out of either the exhaust or
cylinder head cooling ports, immediately stop engine
operation and remove obstructions in the lines or
replace broken cooling lines.

Hint: To test each cooling line
for obstructions or a leak in the
cooling system, place a piece of
tubing over the water inlet tubes
in front of the rudder and blow
into the tube. When testing for
obstructions in the cooling system,
be sure to isolate each system by
pinching the appropriate water lines.

Water-Cooled Cylinder Head and Exhaust

Manifold Cooling Jacket

The exhaust system is cooled independently from
the cylinder head. See line drawings for proper
cooling line routing. Do not alter the cooling line
routing method.

Section 13: Cooling System

Zenoah G26M Engine

Carburetor
Insulator Plate

Water-Cooled
Cylinder Head

Tuned Pipe

Manifold Cooling Plate

Water Pump

Rudder
Pick-Up
Tube

Water
Outlet