AquaCraft Rio 51Z - Manual (Page 4)

4
STANDARD REPAIR SERVICE
After the 90-day warranty has run out, you can still have your Rio
51Z repaired for a service fee by the experts at AquaCraft. To speed
up the repair process, please follow these fi ve simple steps:
1. It is best (recommended) to return the ENTIRE system, boat,
radio and engine.
2. Make sure batteries are removed from the transmitter and receiver.
Also make sure any gas and oil is drained from the tanks.
3. Send written instructions which include a list of all items returned
and a THOROUGH explanation of the problem or problems needing
service. Be sure to include your return address and daytime phone
number. If you have access to e-mail please provide us with your
e-mail address to help speed communication.
4. Send to Hobby Services at the address above. When shipping
your item(s) to us, we recommend that you insure it and use a
company that offers a tracking service (such as Federal Express
Ground or UPS Ground). Our staff will carefully inspect your item
and notify you of their fi ndings, at which time you will be notifi ed
of your options for return, repair, or replacement. Please note that
items sent back unrepaired will still carry a service charge and
return shipping.
NOTE: Hobby Services accepts Visa ® , Mastercard ® , or personal
check. We can return the item C.O.D., but additional charges apply.
PREPARE TO RUN
SPARK PLUG
The recommended spark plug is a EMR7H (ZENG7151). The plug
gap should be .027" [or .7mm]. If the plug gap is incorrect, adjust it
with a spark plug gapping tool. This spark plug uses a 5/8" [16mm]
spark plug wrench to remove and install the plug.
GASOLINE
Your Zenoah G260PUM engine requires a 16:1 gasoline to 2-cycle
oil mix ratio for best engine performance and sustained engine life.
• Follow the mixing direction on the oil container. Always use high-
quality oil intended for 2-cycle engines. Prepare only the amount
needed. Aged gasoline could damage the engine and cause it to
overheat. We fi nd that gasoline mix over 3 months should be
discarded and replaced.
• Use only low octane, alcohol-free gasoline. The carburetor diaphragm
will gradually deteriorate if you use gasoline with alcohol.
• Gasoline can go bad. Store your gasoline out of the sunlight and in
a cool place. Bad gasoline is one of the most diffi cult problems to
diagnose in engines. If you have tried everything you can think of
to remedy an engine that is not running correctly, try using some
fresh gas/oil mix.
ENGINE BREAK-IN
• Make sure that the engine has adequate cooling. When the boat
is in motion, look at the port side for water spraying out the water
cooling exit.
• During engine break-in it’s best to use non synthetic oil like LawnBoy
ashless oil. Mix 6 oz of oil to 1/2 gallon of gasoline. Run the boat in
8 minute intervals, allowing the engine to fully cool between runs.
Use caution not to run the tank dry during the break-in process.
• Take your time breaking in your new engine. When having fun it
can be hard to make short break-in runs but your patience will be
rewarded with long engine life and great performance!
• NOTE: Be certain you have the high speed needle set for a slightly rich
mixture setting. It is also good to keep in mind that no matter how
much oil you mix with your gasoline, a lean mixture setting on the
carburetor can ruin a good running motor during break-in or after.
• After the fi rst tank break-in is complete and the motor has cooled,
run the rest of the break-in gas through the engine. Allow the
engine to fully cool between tanks. Do not run the tank dry.
• When it’s time to make your next run, switch to a good quality
synthetic oil like Klotz KL-200 (KSFP0200) mixing to a ratio of 8oz
oil to one gallon of gasoline. This is the operating mixture and is
recommended for the life of your engine.
HOW TO CHECK FOR A PROPER NEEDLE ADJUSTMENT:
If your boat does not seem to be running clearly or smoothly, the
best way to check for a proper needle setting is by reading (looking
at) the spark plug. Remove the spark plug and look at the insulator
fi ring nose. When new, the nose color is bright white. This bright
white should become a light to medium tan color when the engine
is performing at its best. If the nose insulator is a dark, wet black or
black, the engine is overly rich and/or the spark plug gap is to large.