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nitrokid15

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i just got my rc10gt and i was wondering how many tanks of fuel until it runs good. Because it runs alright but stalls very often. I have a couple questions...
1.how do you stop air bubbles from getting in the fuel line

2 where can i get some other way to start my car. when it stalls the pull start takes a long time to start it up again. i am looking for some sort of roto start or somthing like that.
 
small bubbles in the line are normal and harmless

if its getting so hot that it wont start back up. your running too lean and should retune the engine.
 
CorradoPsi is right, I get small bubbles in my line from time to time and have had no problems with them. As to your other question you might have to get a starter box for your truck as not all engines are roto start capable.You might wanna look at the XTM starter boxes or the Ofna ones there not to expensive just make sure it's a 1/10 scale off road box.Your engine might also be flooded if your pull start is really hard to pull.
 
When your engine is tuned correctly, and not running too hot or too rich, it should restart with just one or two pulls. Pull starts are a REAL pain when there's an engine problem.
 
thanks ya the bubbles are harmless... but I'm gonna try to run it a little richer tomarrow. is there a sight for XTM starter boxes
 
hobbypeople.net sells them, but I would try and get your engine tuned right and then see if your pull start gets any easier for you.
 
well, since you didn't say which engine is in there, I am assuming that it's the AE.15. Generally, they say to idle in the first 2 tanks. On tanks 3 & 4, you start leaning out 1/8 of a turn. Mind you this is at the break in settings for the engine (2 1/2 out HSN, 2-21/2 out on the LSN). Also this is what AE suggests . Click HERE for the pdf file.

All that said and done, here's what I do ...

I Idle in the first 2 tanks at factory specs. Third to fifth tank I do lazy circles and figure 8's at 1/4 throttle, making sure that I hover temps at about 200-210F. 6-10th tank I'll lean out till I hit about 220, still doing lazy circles or running around at 1/4 throttle with quick blips of the throttle. Afterwards, I will reset the needles to factory settings and tune for performance. In general, don't plan to get full performance till about having about 1/2 gallon of fuel through the engine. By that time, the piston and sleeve are well seated. Try to keep your temps between 220-270F.

Every engine is different and perfomrs differently. Even those of the same brand and size may differ. Get yourself a temp gauge at the very least.
 
i got my car almost broken in,the pull start is getting easier i was starting it with the first pull today when it was warm. i can't seem to get the air fuel mixture right though... it is either running to rich or to lean I've got to find the right setting.

it is the ae.15*
 
You have to remember, the day to day settings will change on these engines. Changes in temp, humidity and barometric pressure will have an effect on the settings. I am pretty sure that you have fiddled with the settings to the point where they are all over the place. The first thing you should do is bring it back to the factory settings for break in and retune from there.

Tune the HSN first. Make adjustments in 1/4 turn incriments till you get it at a good temp (aim for 220F). If you can't get her to stay running because she bogs down on you when trying to take off, lean out the LSN 1/8 turn till she can at least get going without stalling then continue to tune the HSN till a good temp is reached.

Once everything is done with the HSN, you can tune the LSN for performance on the holeshot. If she's trying to clear her throat or stalling when taking off from a dead stop, the LSN is too rich. Lean it out a little bit. If she stalls out from a high speed pass or seems to lose performance, the HSN is too lean. SHe's starving for gas. Richen her up 1/4 turn.

Once this is all done (not as easy as I'm explaining, I know) tune for performance. If she's still asking for more give a little bit more leaning but always keep in mind that there should be a nice trail of blue smoke.

Always check the temps to make sure that you're not overheating. A good rule of thumb is to tune for midtank performance that way she's not running too lean when the gas starts getting low. You'll start rich, have a good run and temps will be negligable at the end of the tank.

If you don't have a temp gauge, do the spit test on the cooling head. If it sizzles off right away, you're too hot, richen her up a little. If it sit's there, you're too cold ... lean it out a little bit (adjustments are to be done to the HSN). If it sits for a little bit then sizzles off, you're in a good "ballpark temp."

All engines perform differently so don't just tune it according to operating temps. Tune it for performance then recheck the temps to make sure that you are not overheating (above 270F). The leaner you go, the more performance you get but the engine life will be shortened. The cooler you go, the more lubrication BUT too cold (blow 200F) and you can kill the engine just as well. A good temp for the AE .15 to shoot for is about 220-250F.
 
thanks i had to go out of town today but i will take your advice and put it to use tommarrow.
 

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