davi99

hi, i have a tamiya r/c car and i dont know y but my car is running on lean and not on neutral can any1 help me with this

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iTrader: (13)

do you mean the engine is running too lean?

davi99

yea its wont stop it would just keep running on lean and it seem to sometimes i cant pump gas into engine

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iTrader: (13)

Umm, could you provide me with a more clear description is what is happening?

Because i am thinking that you got a couple of terms mixed up

DOMOisCOOL

I think he means that his car is not idling well.

To fix this, you adjust the idle screw which is located next to the carb intake, depending on what engine you have. Make sure the carb opening is 0.5mm.

davi99

i try adjusting it and it wont idle...im gonna see if i can put it on video on what going on

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iTrader: (13)

is there anyone (LHS, for example) that can check it out personally for you?

That would be a bit better for it is harder to help you out without even seeing or hearing the sound of the engine.

V-One S

If you can't pump fuel into the engine by opening the throttle fully and giving a few pulls with the exhaust blocked, then it sounds like you need to adjust mixtures...

Turn your high and low end needles anti clockwise at LEAST 1/2 a turn, if not 1 full turn...

An engine will run at nearly double the amount of fuel as an optimum setting, but you can drop out very quickly by going lean...


Can you even get the engine to start?

davi99

i can get it to run sometimes

V-One S

Starts on really hot, humid or high barometric pressure days?


Just go and turn your high and low speed needle anticlockwise about 1/2 a turn... and try priming again, if it doesn't prime, turn another 1/2 turn anticlockwise... (richen the mixture)

davi99

well when i prime the fuel i dont see it moving when i prime the fuel i see that it goes bak down and not into the engine something cloged i think ......when i pull the needle out i can see fuel pumping into engine

davi99

well i adjusted it and it wont idle.......guess i have to let a pro look at it

DOMOisCOOL

Sounds like you have an air leak somewhere.

V-One S

It sounds like your running LEAN majorly... put the needle in, screw it IN all the way, then turn it anti clockwise, about 2 1/2 turns, ON BOTH needles...

Getting it to idle is a matter of getting the low end tuned...

But yes it may be a case of an air leak...
It really is hard to diagnose and fix a problem...
Most of the time we can help and give a few reasons, sometimes we can fix, but usually you can't fix properly unless you see the car...