How do you slow down the pump speed on a rc4wd 870k?
 

https://youtu.be/ap9CvbITy_c
Watch what he says about the stock radio between 9:40 thru 10:00 mark. Is it true that the stock radio (the newer white color version) is not capable of having a variable pump speed? How does one slow down the pump speed as I've seen others do on YouTube?

Re: How do you slow down the pump speed on a rc4wd 870k?
 

Maybe this could help you out.

https://youtu.be/pXODWKR7znc

http://www.rc4wd.co.uk/product/manual/VV-JD00013.pdf

https://s7.postimg.org/uazuceuq3/670...BEBC54_DF4.jpg

Re: How do you slow down the pump speed on a rc4wd 870k?
 

Worst comes to worst you can always use your DX18 instead.

Re: How do you slow down the pump speed on a rc4wd 870k?
 

Thanks for that YouTube video! As soon as I receive my 870k I'll try that out. I thought of using my dx18 as I have a spare rx but if I can adjust the speed of the pump with the stock radio, I rather use 2 separate radios so I can let my brother use at the same time.

Re: How do you slow down the pump speed on a rc4wd 870k?
 

Yea, got the same problem as you, set all the equipment up on my DX18, not realizing that if someone else wanted to play, like my son it would be impossible unless I bought another DX-18 or DX-20 which could be a possibility some day.

David