Radio System .......................................................................JR AM 75MHz Python
Page 2
Introduction
Congratulations on the purchase of your Pro Boat™ 1/12 Miss Budweiser Unlimited Hydroplane. You are
just minutes from one of the most thrilling experiences that the radio control hobby has to offer.
The Pro Boat Miss Budweiser is a professionally built, ready-to-run 1/12-scale fiberglass model of one of the
most competitive teams on the Unlimited Hydroplane tour. Powered by the potent Dynamite® .15S marine
engine, you will be able to race across the water at scale speeds in excess of 300mph!
Read this owner’s manual thoroughly. You also need to read the included Dynamite .15S engine
manual, along with the JR® Python radio system manual.
It is very important that you operate this boat responsibly. With proper care and maintenance, you will be
able to enjoy your Miss Budweiser for many years to come.
Carefully unpack Miss Budweiser and examine the boat and its contents. The contents contain the Miss
Budweiser RTR with radio installed, a boat stand, and the JR Python radio transmitter If you are missing any
of these items or notice any damage, immediately contact the place of purchase.
Warning
Before operating your model, make sure your frequency is clear. If someone else is operating on the same
frequency, both models could go out of control, possibly causing damage to the models, as well as to others.
Be certain to check all of the hardware, exhaust system, and propeller, making sure that all are secure before
and after each run. Always keep clear of the propeller when the engine is running!
When you first begin to run your Miss Budweiser, place in water with engine running at approximately 1⁄4
throttle. Slowly increase throttle until boat accelerates onto plane. Gradually increase throttle to no more
than 1⁄2 until you become more familiar with the boat. Remember, this boat makes right turns only!
When operating this model, stay clear of people, full-sized boats, stationary objects, and wildlife. Also, watch
out for fishing lines that could get tangled in the propeller. It is preferable to operate the Pro Boat™ Miss
Budweiser in low wake, low wind conditions and in areas free of people, objects, and wildlife. We also suggest
that you do not run the Miss Budweiser in salt water.
If at any time while operating your Miss Budweiser you sense any abnormal function, end your operation
immediately. Do not operate your Miss Budweiser again until you are certain the problem has been
corrected.
Because this is a scale high-performance model, the Miss Budweiser has been set up to turn to the right
only! Do not attempt left turns or you will flip the boat. If you need to turn left, reduce throttle
and turn in a very large diameter oval.
Service Center Information
If you have any questions regarding the Pro Boat Miss Budweiser, please contact:
Horizon Service Center
4105 Fieldstone Rd.
Champaign, IL 61822
1-877-504-0233
22
Page 3
Table of Contents
Introduction �2
Warning ......�2
Table of Contents ....................................................................................................................... 3
Replacement Parts ................................................................................................................... 14
Additional Required Items
Although the Miss Budweiser comes fully assembled and ready for action, you will need a few tools to get
your boat ready to run:
Blue Thunder 20% Fuel (quart) (DYN2320) Glow Plug Wrench (DYN2510)
500cc Fuel Bottle (DYN2003) or Ni-Cd Glow Driver (DYN1925)
Fast Tap Quart Bottle Spout (DYN2009) Clear 3M tape to seal radio box
12 “AA” alkaline batteries (8 for the transmitter and 4 for the receiver)
Suggested Field Equipment and Supplies
In addition to the items needed to run the Miss Budweiser, we recommend that you carry the following in
your field box:
Engine Tuning Screwdriver (DYN2775) Replacement Glow Plugs (DYN2508 or DYN2500)
Hex driver/Allen wrench (1.5mm and 2.5mm) Cable grease to lubricate drive shaft
Clean towels and rags 12 – “AA” alkaline batteries
Adjustable wrench (small) 10mm wrench
Extra propellers
3
Page 4
Warranty Information
Pro Boat™ guarantees this kit to be free from defects in both material and workmanship at the date of
purchase. This warranty does not cover any parts damaged by use or modification. In no case shall Horizon
Hobby’s liability exceed the original cost of the purchased kit. Further, Horizon Hobby reserves the right to
change or modify this warranty without notice.
In that Horizon Hobby has no control over the final assembly, or material used for the final assembly, no
liability shall be assumed or accepted for any damage of the final user-assembled product. By the act of using
the product, the user accepts all resulting liability.
All warranty questions should be directed to Horizon Hobby, Inc. Please do not contact your local hobby
shop regarding warranty issues, even if purchased from there. This will enable Horizon to better answer your
questions and provide service if assistance is needed.
If not prepared to accept the liability associated with the use of this product, the buyer is advised to return
this kit immediately, in new and unused condition, to the place of purchase.
Horizon Hobby
4105 Fieldstone Road
Champaign, Illinois 61822
(877) 504-0233
www.horizonhobby.com
• Assembled Miss Budweiser 1/12-Scale RTR
• JR® Python radio transmitter
• Prebuilt boat stand
Contents
44
Page 5
Section 1: Receiver and Transmitter Battery Installation
Receiver Batteries
1. Remove the two knurled aluminum nuts that
secure the cockpit as shown. Pull the cockpit off
the boat.
2. Carefully note how the exhaust system
is assembled.
5. Remove the clear lid that covers the
radio box.
3. Use a 2.5mm hex wrench to remove the
tuned pipe mount as shown.
4. Carefully remove the tuned pipe by sliding the
silicone coupler apart from the exhaust header
6. Remove the dry cell battery holder from the
radio box and unwrap the foam around the
dry cell battery holder. Install 4 “AA” alkaline
batteries into it as shown. Note the proper
polarity. Wrap the battery box in foam.
5
Page 6
Section 1: Receiver and Transmitter Battery Installation (cont.)
9. Re-install the tuned pipe mount.
Transmitter Batteries
1. Remove the transmitter from the box
7. Re-install the battery holder back into the
radio box and properly seal the radio box with
clear tape. Failure to properly seal the radio box
could result in damage to your radio equipment.
8. Re-attach the tuned pipe and coupler to the
exhaust manifold.
2. Remove the battery cover on the bottom of
the transmitter.
3. Note the proper polarity and insert 8 “AA”
batteries into the transmitter.
4. Turn on the radio to ensure the batteries have
been installed correctly.
5. Turn the radio off.
6
Page 7
Section 2: Turn Fin
The Miss Budweiser comes with the turn fin
installed on the right sponson. You will want you run
the Miss Budweiser in an oval and in an area that
will allow you to make right turns (clockwise).
Section 3: Filling the Fuel Tank
We recommend that you use Blue Thunder™ 20%
fuel. For maximum performance, we recommend
Blue Thunder Race Formula. Blue Thunder fuels
are specifically formulated for excellent power and
engine protection.
Locate the fuel tank inside the cockpit area and
unscrew the lid. Use either the DYN2009 Fast Tap™
quart bottle spout that has been attached to the
quart of fuel or the DYN2003 Fuel Bottle to fill the
Do not attempt to make tight left hand turns
(counterclockwise), or you could easily flip
the boat. If you need to make a left turn, do so in
a large diameter turn at slow speeds.
fuel tank with your selection of Blue Thunder fuel.
After you have filled the fuel tank and re-installed
the lid, wipe away any excess fuel that may have
been spilled inside the hull or elsewhere on the
boat. Immediately seal the fuel container by putting
the lid back on after refueling in order to protect
the fuel from moisture.
Section 4: Range Checking the JR Python Radio System
Before the first run of the Miss Budweiser, range
check the radio for proper operation and to ensure
proper control movement of the rudder and
throttle. Also ensure that the antenna on the boat
is extended properly and that all batteries are in
working condition.
1. With the radio system turned on (transmitter
and receiver) and the transmitter antenna down
(engine off), walk off 40 to 50 paces from the
Miss Budweiser.
2. Have an assistant remain with the boat to
check for proper control movement of the
rudder from your transmitter input.
3. If everything appears to be operating correctly,
raise the antenna and start the engine (refer
to Section 5 of this manual and to the separate
DYN .15 engine manual). Place the boat in the
water and run it (at about 1⁄3 throttle) close to
the shore- line. If the radio system is operating
properly, you can begin to run the boat faster
and further away from the shoreline.
Note: It is a good idea to range
check prior to operating your boat
after any repair, installation of new
batteries, or at the beginning of
each boating season.
7
Page 8
Section 5: The Dynamite .15S Marine Engine
Water-Cooled Engine
Because the Dynamite® 15S engine is water-cooled
and not aircooled, make sure that you do not run
the engine for an extended amount of time outside
of the water. Continuously monitor the water
outlet when the boat is running to make sure that
the water is reaching the engine head. If the water
does not reach the head to cool it, the engine
will overheat and fail. This could cause permanent
damage to the engine.
Pro Mix Carburetor
Richer
High-Speed
Needle Valve
Higher Idle
Idle
Adjustment
Screw
Low-Speed
Needle Valve
Leaner
The Dynamite .15S engine comes equipped with
the Dynamite Pro Mix Carburetor. Each Pro Mix
Carburetor is pre-adjusted at the factory. This
setting should be approximately 31⁄2 turns
open for the high-speed and 21⁄2 turns open
for the low-speed needle. This should give you
a slightly "rich" mixture of fuel to the engine. This
setting is the safest way to break in your engine.
For further details regarding the Pro Mix
Carburetor, please consult Section 2 of the
Dynamite .15S instruction manual.
Note: When using the pull-starter,
never pull the rope out to its
full length as doing so can cause
damage and the rope may not
retract. Quick, short pulls of the
starter rope are the best technique
to use with the pull-starter.
If the pull-starter becomes very difficult to pull, the
engine may be hydro-locked. Excessive fuel between
the head and piston will not let the piston travel
to TDC (Top Dead Center). Loosen the glow plug
one turn and try to start the engine. If the engine
starts, re-tighten the glow plug with the attached
glow driver while the engine is running. If you are
still unable to get your engine to start, refer to the
Troubleshooting Guide (page 8) in this manual.
You may have to "blip" the throttle on the
transmitter (applying throttle on/off) while trying
to start the engine. New engines are harder to start
because of the tight piston/sleeve fit.
Never start an engine at 1⁄2 to full throttle, as
this will cause over-revving which may cause
premature wear and breakage.
During the first tank of fuel, advance the idle
via the idle adjustment screw more than normal
to prevent stalling at idle due to the rich fuel
mixture for break-in.
8
Page 9
Section 5: The Dynamite .15S Marine Engine (cont.)
Breaking in Your Engine
The first start-up of the engine is the most critical
moment of the engine’s life, dictating how the engine
will perform from that time forward. Turn on your
radio system and attach a fully charged glow igniter
(DYN1925) to the glow plug. Start the engine with
therecoil (pull-start) on the engine.
During break-in, the low-speed needle should be
slightly rich and the high speed needle should be
very rich. After a few tanks of fuel, begin to lean
the engine out. Adjust the high-speed needle 1⁄16
of a turn at a time. It generally takes about five to
six tanks of fuel before you want to lean out the
engine until it supplies good power. Do not skip
this process of break-in. Failure to follow this
procedure could damage your new engine. For
further details on breaking in your engine, please see
Section 3 of the Dynamite® .15S instruction manual.
Note: It is common for an ABC
engine to go through a glow plug or
two during break-in.
Needle Settings
When adjusting the settings, always adjust the
needles in small increments, about 1⁄16 of a full
turn at a time. Do not set the engine too lean, as it
shortens the reliability of the engine. Please refer to
Section 4 of the Dynamite .15S instruction manual
to learn more about setting the needle valves.
After you have attained the correct needle settings,
the engine will have a strong sounding, high-pitched
whine at full speed, and a thin trail of blue/white
smoke will come from the exhaust.
Idle Adjustment
The last setting is to set the idle screw. To obtain a
higher idle, turn the idle screw clockwise; for lower
idle, turn the idle screw counterclockwise.
Replacement Parts
There is a complete parts listing in the
Dynamite .15S instruction manual in the event that
you need to replace an engine part. Exploded views
will help you to select the correct parts and make
minor repairs.
9
Page 10
Section 6: Engine Troubleshooting Guide
Problem Possible Solution
Engine will not start Check needles and make changes back to factory
settings if necessary
Improper needle setting
Out of fuel
Improper fuel
Improper glow plug
Glow igniter not charged
Dead glow plug
Flooded engine
Engine starts, then dies Pressure line blocked or unhooked
Reset needles to baseline setting
Improper needle settings
Engine starts and runs for Bad glow plug
several minutes, then dies Idle speed set too low
Improper needle settings
Overheated engine
Glow plug failed due to lean engine setting
The Pro Boat™ Miss Budweiser should provide
many hours of exciting high-speed racing fun with
just minor maintenance. Preventative maintenance is
very important. Taking the time to ensure that all the
set screws and bolts are tight before each operation
of the boat will prevent many problems.
Before operating Miss Budweiser
Check that all screws and hardware are securely
in place. This is very important, as the manifold
screws will occasionally vibrate loose during the
first initial runs.
Check the propeller for damage in the form of
chipping or cracking. If you find any damage,
replace the propeller, as the damage will effect
the performance of the boat and could also cause
safety concerns.
When refueling, always wipe away any excess fuel
that may have spilled into or on the boat.
After operating the Miss Budweiser
Wipe off any exhaust residue from the boat. If you
have operated Miss Budweiser in salt water, it is
suggested that you thoroughly rinse the deck, hull,
and all the metal hardware with fresh water, then
dry them with a clean rag or towel. This will help
to prevent rust from occurring.
Ensure that the radio box and equipment
inside is dry.
10
Page 11
Section 7: Maintainance
Lubrication
It is important to lubricate the flex shaft of
the Miss Budweiser with cable grease after
every two hours of operation. Do not forget to
do this. You can purchase this grease at your local
hobby store. To lubricate the drive shaft, follow
these simple instructions.
1. Carefully note how the drive shaft and prop
are presently installed. This is important so that
when you have finished lubricating the drive
shaft, you can correctly re-install the drive shaft.
2. Loosen the ferrule screw that holds the
propeller shaft. Remove the propeller and shaft
from the aluminum strut.
3. Use a 10mm wrench to hold the collet and
another 10mm wrench to loosen the collet nut.
11
Page 12
Section 7: Maintainance (cont.)
4. Carefully pull the ferrule away from the
stuffing tube. You will need to pull at an angle to
clear the aluminum strut.
6. Carefully re-install the flex shaft and nylon
bushing, making certain that you correctly tighten
the collet nut. Next, re-install the drive shaft and
propeller and tighten set screws on the flats of
the drive shaft.
5. Liberally lubricate the entire length of the flex
shaft with cable grease as shown.
12
Page 13
Appendix
Glow Plug
Carburetor
Water-Cooling Line
Water Pick-Up
Photo 1
Exhaust Manifold
Photo 2
Pull Starter
Water-Cooled Head
Photo 3
Fuel Tank
Turn Fin
Photo 4
Rudder
Propeller
2.5mm Manifold Bolts
13
Page 14
Replacement Parts
In the event that you need to purchase replacement parts for your engine or the Miss Budweiser, please see
your local hobby store.
You can also purchase them from Horizon Hobby by calling 1-800-338-4639 or
shop online @ www.horizonhobby.com