Hi i have a blast 10 boat w/ brushless motor an mystery esc. w/ battery pack. everything works except motor runs in the right direction but only works when transmitter is in reverse. motor wont run w/ trans. is foward. thank you vinny

In reverse, the propellor is pulling the motor away from the boat, this is the same direction as the motion you get when you tilt the motor up for transport. Check the motor mount, especially the motor tilt mechanism to make sure nothing is excessively worn, bent or loose. Maybe the latch that's supposed to hold the motor in the run position isn't working right - that could be bad news if it lets the motor drop down while the boat is on the trailer.

could be esc or motor it self

there are only 3 combinations on connecting esc to brushless motor. if nothing indicated on wires you can try each combinations of 3 wire by keeping 1 wire choosen and trying rest 2 wires. dont worry you wont burn anything. only motor runs on other way.or it wont move but makes noise.

For lipo you need a specific charger and you can use lipo two cells dont go on three cells you push it to hard.

Check your TX throtle stick is completly down. ESC beep if they detect signal from throtle channel on start.
Other cause could be you plug ESC in wrong channel in your RX

If the two motors are the same model, or are at least designed to run at the same rpm, then yes it will work. Achieving a very close alignment of the two shafts will be the hard part. I assume the motors have an exposed shaft at both ends and that you will use some kind of collar to connect the left end of the shaft of one motor to the right end of the other. You will need to mount both motors to a block or bracket of some kind. Use rubber grommets or something similar to mount the motors to the block pretty loosely so that you don't exert misaligning pressure on the two shafts. You should get nearly double the torque and power that you would get from one motor. If it runs slowly or obviously has low torque, the alignment is not good enough. Good luck.

Hi there
I have the same electronics on hsp rally monster pro. 3300kv - but 75A ESC, i upgrade it to 6000kv with 5000A lipo without any programing to the ESC . it worked fine for couple of runs but i faced wires over heating problems after that something wrong went to the ESC !!! . .
Am going back to 3300kv, but need advice of what is the higher ampers/voltage battery can i use?

Lower throttle trim all the way. It will arm like a charm.
Cliff

Hi All,
Thanks for your reply.

Finally, I've solved the problem. The battery that I've got previously produced 42 volts each and I connected two in series configuration. So the voltage add up together become 84 V for ESC.
That's why I can only fly for twice and it didn't last for long. The batteries were bubble up and really hot, basically, I busty it. Besides, the ESC is cooked.

So, I bought two brand new battery packs ( 3C 11.1V 3300mAh) and an ESC. The ESC has built in switching mode.One of the socket from ESC is connected to the switch with black and red wires were wrong way around. After I've swap it everything works. By using this way, there is no needed the extra 9V batter pack for receiver.

Your Sincerely,
Joe

You should never run the boat out of water! The shafts heat up in the shaft tube and freeze up. Then your done.
I own a company "H2O Hobbies"
We sell ready to run Riva boats such as yours. Many other people sell these same boats from the same manufacturer in vietnam. BUT - These are display all models.
My company works with the manufacturer to create each model with removable covers to access the motor etc... inside. The models are made waterproof by lining the inside of the hull with fiberglass. We use high quality brushless motors (1) with hardened steel u-joint coupling to the shaft which is 4mm stainless steel and attach a beril-copper balanced propeller. This setup is bulletproof. It took about a year of testing several different components to find the right set of matched components to get the best performance and reliability.
We use 2 7.2v battery packs in series = 14.4v.
See youtube videos - search scalemodelpowderful.
My suggestion is to put your boat on a shelf because that is what is was made for and buy one from us which is waterproof and accessable to work on if necessary. Go to H2OHobbies.com or call me 612-325-2345 - Mark I am the Director of product development. I build the RC boats myself.