AquaCraft Miss Vegas User Manual
Page 9

The U-18 Miss Vegas Hydroplane is best suited for operation
on calm water. Wind creates waves which present challenges
to running a hydroplane. An increase in wind will create
choppy water conditions, allowing the possibility of
“blowing” the boat off when running into the wind.
With extensive testing, we at AquaCraft have found setting
the FRP Y535 prop depth at 27mm [1-1/16"] below the
transom provides optimum performance. 27mm [1-1/16"] is
to the C/L (centerline) of the prop shaft. Negative 1° to 2°
prop thrust is also essential.
Performance Tip! The GrimRacer turn fin (available
separately) is designed specifically for .18-size hydros. This
fin will help your hydro turn faster with more stability both
left, right and in the straights. Blue Finish (AQUB9515),
Polished Aluminum Finish (AQUB9516).
When you are through operating your boat for the day, be
sure to perform these basic maintenance procedures. This will
prolong the life of the U-18 Miss Vegas Hydroplane and help
to ensure trouble-free running.
ENGINE MAINTENANCE
• Drain any remaining fuel from the tank.
• Remove the glow plug.
• Place a few drops of Hobbico After Run oil (HCAP3000)
into the carburetor and in the cylinder head.
HULL MAINTENANCE
• Remove the hatch cover.
• Open the radio box.
• Soak up any excess water with a paper towel.
• Remove the driveshaft and wipe away as much grease as
you can. Spray the driveshaft down with WD-40 and place
it in a plastic bag until you are ready to operate the boat
again (See the Driveshaft Maintenance section below).
• Wipe down the entire boat with spray-on glass cleaner
and a paper towel.
DRIVESHAFT MAINTENANCE
IT IS CRUCIAL that you remove the flexible driveshaft and
lubricate it with AquaCraft Speed Grease cable lubricant
(AQUB9500) or some type of heavy-duty marine grade cable
grease at the beginning of each daily session and again every 2-3
tanks. This exercise will require a 10mm and 15mm wrench.
❏
1. Remove the canopy.
❏
2. Use the 10mm wrench to hold the flywheel nut in place
while loosening the collet assembly with the 15mm wrench
as shown.
❏
3. Gently pull the driveshaft out and wipe off any old grease.
❏
4. Apply AquaCraft Speed Grease cable lubricant (AQUB9500)
or heavy-duty marine grade cable grease to the driveshaft and
reinsert it into the stuffing box. Slowly rotate the driveshaft while
gently pushing it back into place. Be sure to leave about a 3mm
[1/8"] gap minimum between the drive dog and the stuffing box
as shown.
❏
5. Use the 10mm wrench to hold the flywheel steady while
tightening the collet assembly with the 15mm wrench as
shown. Make sure there is still a 3mm [1/8"] gap between the
drive dog and the stuffing box.
MAINTENANCE
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