Ps.That hull will never last with a qd in it, and I can guarantee it didnt even come close to 60 without flying, If you can afford to upgrade the egine to a qd or bonzi, build your own boat! Now on the other side if you want a engine upgrade buy a sikk ot a stock zen from o'neil or someone similar, at least then you dropping $300 or less. I will agree it is somewhat acceptable to get as a starter boat, only because youll be working on it all the time, and you can use it as a tool to learn to build your own boat. I can say this seing how I made the mistake of buying one before I read all the forums here, luckily I didnt make the mistake of not returning it. I just gotta no who in there right mind would stick a $750 bonzi bx4, or a $900 qd25 in this hull using that hardware? That is as intelligent as sticking a set of dub 30' rims on a freaking pinto! Hopefully this help newbies in the future Oil mixture-I'm using 4 ounces per gallon, should I use more oil? - went to 6 ouncesĪdditionally, changed the spark plug to an irridium one, must retune the boat and cut a portion of the top canopy for clearance, but well worth it. It idles perfectly for the first 5 minutes.- adjusted the carb while 'running the boat' in an igloo cooler-ran the boat for 25 minutes at different throttlesĥ. After 10 to 15 minutes, I idle engine down next to shore and it stalls. Turning radius is pretty crappy at 1/3 to 1/2 throttle-Is that normal? This is my first cat- Adjusted the radio and changed to bigger steering servos (650)Ĥ.

What height do I put the prop?- 1/8 to 1/4' higher than stock positionģ. What size prop do I use (other than stock) for a stock engine?- Prop shop 6717/3 works pretty good, need to retune engine once the prop installed due to the loadingĢ. I've got the following problems/questions for you veterans:ġ. So I just put my BJ 55 in the water yesterday. Here's an update on my problems (which are resolved):

Blackjack 55 rc boat