OS .21VG and Flooding

[MotoGod]

OK so I scored 2 OS .21VGs in kick ass condition. Both have great pinch and no wear and tear on them at all. One is freshly rebuilt from the factory, and the other has @ 3/4 of a gallon through it, purposely run rich for this guy's wife's buggy.

I installed the 3/4 gallon engine in my OFNA Ultra MBX this past weekend, and my bump box came in on Saturday as well, since these are both bump only engines...and I had no starter box. We after figuring out what I needed to do to start these suckers with a bump box I prepped everything and brought it outside, primed the engine without issue....Bumped it and it fired up near instantly and started to rev to the moon so I promptly killed it. I made some carb and trim adjustments to calm it down a bit...and after that point all the motor did was flood itself.

How the hell do you clear out a flooded bump only engine without having to use the bump box upside down?!?!?!?!?!?!?!? I pulled the plug and left it right side up and spun it for a good 8-10 secs and fuel sprayed all over the damn place. Put the plug back in....nothing. No dice. There was a few times that if I bumped it and let it up real quick it would idle for @ 1 sec then die. Other times where I left it pressed down on the box and it would almost fire, but not quite.

I kept picking up the car and flipping it upside down and the exhaust was spilling fuel out of it...so it was obviously flooding the hell out of itself.

Anyone have any ideas? I'm not too familiar with OS engines. What kind of car opening do they like to have? I have yet to mess with the HSN or LSN since I just wanted to get it fired up and then I could tune from there. I killed both 7.2V 3800 mah packs I had in the bump box from trying to fire it up for like 45 min. I think the bump box motors were hotter than the buggy motor when I was done!

 

[MotoGod]

I got it fired up FINALLY. It was set so GD rich I ran through a full tank in @ 5 min with fuel pissing out the pipe.....but it's running at least. lol

 

[Scrogg]

To clear a flooded engine on a bump box you loosen the gp, disconnect the fuel line and let the bump box turn the engine over for about 5 seconds.
Whenever I start a poorly tuned engine on a starter box I listen closely to it. If I hear the engine start to slow down like it is flooding I pinch the fuel line for a few seconds.

 

[MotoGod]

I'll get the hang of this bump box thing. Seems pretty damn easy actually.

 

[Scrogg]

ONLY way to go with a buggy or truggy. Good batts are the key, and good tuned engine of course.
I was giving some of my buds crap at the track. These two guys have fairly new RC8T's with Trinity X-Tech .24's on them. They both can't tune and are too lazy to put in the wrench time, but they'll will spend butloads of money to have the latest greatest stuff.
I watched them struggle all day trying to start their engines.
I walk over to my old truggy attach the ignitor, push down for 2 seconds without touching the TX, she fires right up and settles into a beautiful low idle. I just smiled and told them " That's how a truggy is suppossed to start" They agreed.

 

[MotoGod]

I liked the RotoStart setup I have on the Force 26 I just took out of my buggy. Only difference really is carrying a bump box or a starter wand. The lining up takes a few extra seconds on the wand....but I'm kinda liking the bump box at the moment. I tossed 2 Tenergy 3800s in there for the moment. I may go gel cell with it...but not sure as of yet.

 

[Scrogg]

The 3800's have more punch than a gel cell. 14.4 V vs. 12 Volts....But the gell cell lasts forever on a single charge. Lipo's are the absolute best route for powering a starter box. They have so much current they can turn a mediocre bump box into a torque monster.