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Old 10-30-2007, 08:52 PM   #1
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Default Rc car Stops running

I was tuning my carb today(RC10GT2) and it idles fine and has good take off power, but when I go to slow down by reversing the throttle the car dies. I have tried messing with the carb but no results. Any Ideas.
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Old 10-30-2007, 08:59 PM   #2
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Are you setting the idle by using the trim on your radio or the idle stop screw on the carb? Which engine is it? Have you checked the glow plug?
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Old 10-30-2007, 09:23 PM   #3
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I am using the adjustment on the carb. I thought the plug was the problem so I replaced it but still the same problem.
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Old 10-30-2007, 09:37 PM   #4
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Make sure the throttle opening at neutral is the same when applying the brakes. If it moves, then your servo is holding the throttle open slightly and when you apply brakes, it closing and stalling the engine. The only other thing I know of is the mixture. If the engine mixture is running lean, it will try to continue to rev when you close the throttle, but you'll stall it with the brakes.
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Old 10-30-2007, 10:32 PM   #5
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that makes sense, because the took the car apart for a good cleaning and I didnt mark where the throttle mounted on the teeth. thanks
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Old 10-31-2007, 04:58 AM   #6
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Quote:
Originally Posted by newguytoRc View Post
I was tuning my carb today(RC10GT2) and it idles fine and has good take off power, but when I go to slow down by reversing the throttle the car dies. I have tried messing with the carb but no results. Any Ideas.
Thanks
..............sound like carb is closing off completely.......or is a little rich or lean.........does engine spped up before dying?.......lean.........or does it just taper off and die?............rich...........make sure carb is not closing completely when brakes are applied.........and don't use trim to adjust carb or it will throw endpoints off........
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Old 10-31-2007, 05:11 AM   #7
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If the engien is lod then it might be loose compression. I have one engine then facing this problem, running is fine but when I full throttle then let it idle the engien die itself. Have adjust max on the idle screw but no help.
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Old 10-31-2007, 11:31 AM   #8
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Originally Posted by ezveedub View Post
Make sure the throttle opening at neutral is the same when applying the brakes. If it moves, then your servo is holding the throttle open slightly and when you apply brakes, it closing and stalling the engine.
90% of the time its this one...
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Old 10-31-2007, 05:14 PM   #9
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Check the clutch springs, it sounds like the clutch it still engaged when you hit the brakes thus stopping the motor.
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Old 10-31-2007, 06:07 PM   #10
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More like check the clutch shoes. If they are soft type, they can mushroom on the ends and jam against the flywheel or clutch bell. But this is more likely to happen when accelerating on full power for a few seconds, not just short blips, unless its really worn out.
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Old 11-01-2007, 06:46 AM   #11
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how many gallons of fuel have you gone through you might need to replace some things
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Old 11-01-2007, 06:47 AM   #12
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how many gallons of fuel have you gone through you might need to replace some things
this is for you new guy to rc
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Old 11-01-2007, 09:05 PM   #13
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I havent even gone thru a whole gallon. I first bought a gallon of trinity fuel and used about half. I was away from my house but needed fuel so went to the local hobby shop and bought a small bottle of the odonnell racing gas and I still have some of that left. My only worry is that also when it idles it makes a clicking noise. It only did this after I replaced the pull start.
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Old 11-02-2007, 05:38 PM   #14
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thankz for the answer to a problem that was going to asked
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