Arrow Shark X-Hydro Instruction Manual Download Page 21

conditions. 
* When you are ready, prepare to bring your boat back to the shore. Do this before your engine 
runs out of fuel. The gas tank should give you about 20 minutes running time. 
* Check that other boats are clear before you leave the running circuit, then steer into toward the 
bank and bring the engine back toward an idle. If the clutch disengages, just open the throttle a 
bit again until the boat moves toward you ­ but keep at a low speed so that you can ease the boat 
safely near the bank before allowing it to drift to a stop before it hits the shore. 
* Stop the engine by pushing the trigger. 
* Have your friend pick up the boat and bring it back to the stand. If you do this yourself, first 
put your transmitter down in a safe place. Remember that the engine and exhaust will be hot, so 
be careful not to touch them as the boat is picked up. 
* Place the boat back on its stand, remove the engine hatch and turn off the radio. 
* Allow the engine and exhaust to cool before getting close to them. 
* Check the  interior of  your boat to see if any water has come onboard; if  so, carefully clear  it 
away. If there is a lot of water onboard, find out where it is coming from and correct the problem. 
Some water will usually get on board, especially when running in choppy conditions. 
* Generally check over the boat to see that nothing has come loose. 

Step 14: Procedure Should Your Boat Flip Over 

* Sooner or later, all high speed RC boats will flip over. You should drive to suit the conditions 
to minimize the chances of this happening, but it's almost inevitable that circumstances one day 
will result in the boat turning over despite your best efforts to avoid it. 
*  Retrieve  the  boat  with  your  rescue  method  (inflatable  dinghy,  tennis  ball  on  a  line  or  other 
method).  Note:  Be  aware  that  a  flipped  boat  could  be  full  of  water  and  consequently  be  very 
heavy. Be careful when lifting it out of the water, and allow all the water to drain out as soon as 
possible. 
* Hold the boat vertically with the bow up so that any water drains out of the exhaust pipe. Then 
put the boat back on its stand. 
* Remove the engine hatch and gently try to pull the starter cord. It's quite likely that water will 
have entered the engine and it will not pull over. Do not force it. Doing so could cause damage. 
If the engine does pull over easily, see if it will re­start. If it does, allow it to run for 30 seconds 
or so, then resume running your boat normally. 
* If the engine is hard to pull over or will not start, remove the spark plug and dry the electrode. 
*  With  the  spark  plug  still  out,  hold  your  boat  upside  down  and  pull  the  starter  cord  10  or  so 
times. This will expel most of the water from inside the engine. (Note: You may need a friend to 
help with this ­ although you can do it by yourself with practice.) 
* Put the boat back on its stand, re­install the spark plug, and gently pull the starter rope. 
* If the engine is still hard to pull over, or will not start, repeat the above 3 steps. 
* Once the engine starts, allow it to idle for 30 seconds or so to check it is okay, then stop it. 
* Check your servo box to ensure that water did not get inside, If it did, stop running the boat for 
the  day.  Clean  up  the  boat  as  usual  (see  the  next  Step)  and  take  it  home.  Remove  all  the 
electronics  from  the  servo  box  and  check  them  for  correct  operation.  If  there  is  any  problem,

Summary of Contents for X-Hydro

Page 1: ...he radio manufacturer to ensure you will be able to maintain control of your boat at your planned maximum operating distance Always fit a Fail Safe device so that your engine is stopped should the rad...

Page 2: ...rom other boats and with your more experienced driver close by to give advice and support If you don t know an experienced driver find an RC Boat Club in your area and join up Most clubs welcome new m...

Page 3: ...Servo for rudder operation 8 CNC Dual Servo Mount and Bolts 9 Prop Nut 10 Receiver Switch Cover 11 Antenna Tube with Black Cap 12 Shaft Drive Dog Tools Required You will need the following tools and...

Page 4: ...d apply CA glue or epoxy to the joints of the stand Note This boat stand is intended for displaying your boat at your home or office It is not for field use You should custom make a stronger boat stan...

Page 5: ...e on the top of the rudder blade Step 4 Turn Fin Installation And Performance Tip A curved hydro turn fin is supplied in the accessory bag along with mounting bolts and nuts On the back of the starboa...

Page 6: ...aft that comes with the package has been pre greased and pre cut to the right length to fit your boat It is best though to re grease the shaft with light weight marine grease before you insert it into...

Page 7: ...h out and draw back a bit taking the flex shaft with it If there is no free space left on the prop shaft when the clutch bell draws back it will create a strain on the flex shaft that could cause it t...

Page 8: ...pply a little Loctite to the thread on the end of the shaft and screw the prop nut onto the prop shaft Use an Allen key or similar small diameter metal rod through the hole in the nut to tighten it in...

Page 9: ...r boat in different water conditions To start with run a straight edge along the bottom of the boat projecting out the back and set the strut drive unit so the prop shaft is parallel with the straight...

Page 10: ...change the pipe length and find your engine no longer performs properly just re set the pipe to its original factory setting Step 8 Servo Installation Please note that we do not include radio systems...

Page 11: ...an experienced driver for advice if you are not sure on this point Note Before proceeding to install the servos into the boat connect them to your receiver along with a battery and switch Turn on your...

Page 12: ...box Install both servos into the CNC servo mount using the screws provided The servos must be mounted so that the spindles for the arms are in the center as shown in the above left photo and the suppl...

Page 13: ...cing up when installed into the servo box Fit the CNC servo mount and servos into the servo box remember that the 15kg metal gear servo goes at the back of the box Connect both throttle and steering p...

Page 14: ...s to the correct positions in the receiver Neatly arrange and secure the wires with a zip tie Note A 5 cell inline rechargeable battery is required for this application Check that the radio and servos...

Page 15: ...is especially beneficial during long high speed runs Fill the cup with a good quality lubricating oil you can use the same oil that you use to mix the gas Trimming Your Throttle Function Adjust the pu...

Page 16: ...er Note We recommend using the EPA function on your radio to set the rudder so that it turns about 20 25 degrees either way for both left and right turning This will give reliable and stable turns at...

Page 17: ...r outlet from the pipe out of the boat Line 7 Water outlet from the nipple on the engine cylinder under the exhaust flange to flange Line 8 Water outlet from flange out of boat Step 10 Starting The En...

Page 18: ...t when the transmitter trigger is at its neutral position You may find it best to increase the servo trim setting for a slightly faster idle when the engine is cold then return the trim to its normal...

Page 19: ...he lines and hose away from your prop although you should keep the engine revs low enough not to actuate the clutch as much as possible For more information on the engine break in procedure carburetor...

Page 20: ...alled boat and gently pull on the line to bring back the boat If in doubt about rescue methods check with your local RC Boat Club Fill the gas tank and start the engine as explained earlier Wait a few...

Page 21: ...cumstances one day will result in the boat turning over despite your best efforts to avoid it Retrieve the boat with your rescue method inflatable dinghy tennis ball on a line or other method Note Be...

Page 22: ...similar Keep the shaft out of the boat until you next run it this allows the inside of the stuffing tube to dry out Remember to re grease the shaft when preparing to next run the boat Spray all over...

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