01-6
SECTION 01 - GENERAL RACING INFORMATION
15. All fuel lines must be secured to the carbure-
tor and fuel tank with clamps or zip ties. Fuel
injected engines must have approved high
pressure fuel lines. There can be no fuel leaks
of any type.
16. Flame arresters must be USCG approved and
not modified.
17. Electrical components must be properly
wired, insulated, and routed away from high
temperature components.
18. Decals that are required to be placed on the
boat by the sanctioning body, promoter, or
sponsor will also be checked.
19. You will be required to show your USCG ap-
proved flotation device and approved full face
helmet, without face shields, at this time.
20. The sponsons must not protrude beyond the
width of the hull bond flange. If it is such the
case on your watercraft, it is necessary that
the sponsons be filed or ground down to fit
within the bond flange in order to be race le-
gal.
NOTE:
The inspector will place a small decal on
your boat upon satisfactory completion of the in-
spection. If you are competing in a multi-day
event, the inspection will be valid for the entire
event.
PRERACE MAINTENANCE
The following items should always be checked
when preparing for an upcoming race:
1. Check the engine compression. If the com-
pression is low or the variance between cylin-
ders is greater than 10 PSI, determine the
cause and remedy the problem. Check the
torque on the cylinder head bolts. Put in new
spark plugs.
2. Check the ignition timing and ignition flywheel
nut torque.
3. Lubricate the electric starter gear and shaft.
Check the starter mounting bolts for tightness
and the starter electrical cable for a clean, cor-
rosion free, connection, both on the starter
and solenoid.
4. Check all rotary valve housing, intake mani-
fold, and carburetor mounting bolts for tight-
ness.
5. Check for correct oil injection pump adjust-
ment, if an injection pump is being used.
6. Check the fuel filter for debris or water, if any
abnormality is noticed, remove and clean the
fuel tank, fuel filter, fuel lines, and carburetors.
7. Carburetor diaphragm screws should be
checked and pop off pressure verified. Now is
a good time to check your low and high speed
fuel mixture screws to make sure they have
not backed out and are still set to the required
setting. Throttle cable operation should be
checked to insure maximum throttle opening
is being attained. Lubricate the throttle cable
at this time.
8. Clean or replace the flame arrester as neces-
sary.
9. Engine bed plate bolts should be checked for
tightness.
10. Check all exhaust system components for
cracks or signs of fatigue. Pay close attention
to rubber couplers, exhaust pipe, and exhaust
manifold mounting bolts.
11. Service the battery and check for clean, corro-
sion free, battery cable connections.
12. Grease the PTO flywheel and the drive shaft
seal carrier (if applicable) at their grease fit-
tings. If the seal is damaged replace it.
13. Check the hull and deck for signs of cracking,
or damage. If the bottom of the hull has been
damaged or scraped, repair should be made to
restore the configuration to it’s original shape.
14. The impeller housing should be removed to al-
low for a close inspection of the jet pump and
related parts. Impeller clearance, stator vane,
and general pump condition should also be
checked. Remove the drive shaft and inspect
the splines. Check for correct engine to pump
alignment. Grease all necessary components
during reassembly. Lubricate the steering
stem, steering support and cables. Upon com-
pletion, check for proper steering cable and
trim cable adjustments.
NOTE:
Poor engine to jet pump alignment will
cause excessive vibration and loss of horsepower!
15. Check the intake grate for damage and tight-
ness.
16. Verify that all gauges are functioning correctly.
17. Test ride the watercraft and perform any ad-
justments before leaving for the race site.
18. Flush the cooling system to insure cleanliness
and maximum cooling system efficiency.
Summary of Contents for Bombardier
Page 1: ......