Question about Quad 47 cc / 49 cc Pocket Mini Bike Scooter Atv Pull Start

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Mini bmx atv will not idle when choke is off. Runs fine when throttle is given. Purrs like a kitten when choke is on. Why?

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Take the carb off and clean the jets inside

Posted on Nov 03, 2013

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1 Answer

Why does my ATV bog down and die when I keep the throttle wide open?


If you are lucky, you might just need new fuel filter and the fuel bowl cleaned out, and maybe new air filter. If not so lucky you need carburetor rebuilt. Backfire is usaully caused by engine running too lean ( too much air for the amount of fuel present). Fuel bowls get gunk in them and the fuel needles and fuel jets get varnished up. The accelerator pump gets worn out gaskets and/or bellows and doesn't give the right amount of fuel mist when you accelerate.

Full Choke is indicative of a motor starved for fuel

Mar 04, 2015 | ATVs

1 Answer

Wont idle without choke being used


Main jet dirty. Likely Ethanol fuel fouling. Remove and clean jet. Check all rubber tubing to/from carb for cracks/deterioration and replace.

Nov 24, 2013 | Yamaha 2004 Bruin 350 Auto 4x4

1 Answer

Quad idles fine but when given throttle it chokes out dies. If you put choke on a little runs fine. Plugged jet? Stuck float?


More likely to be a leaking inlet rubber or a lack of air filter. The choke cuts air flow not fuel.

Aug 12, 2013 | Motorcycles

1 Answer

Wheres the choke on a 49cc pocket rocket


The choke is on the carb. Check if the carb set screw is set right, turn it all the way in and then back out 1 1/4 turns. then fine tune by 1/4 turn increments.

Feb 02, 2012 | Quad 47 cc / 49 cc Pocket Mini Bike...

1 Answer

1996 sportsman 400 wont idle. Had the carb cleaned by a "mechanic" after the bike took off wide open and driver was injured. He said the float stuck and he "fixed" the problem. Now...


I have NEVER heard of a float sticking and causing that issue. Sounds to me like the Electronic Throttle Control (ETC) on the right handlebar isn't or wasn't adjusted. There is a thumb nut on the throttle cable coming out of the ETC switch. Loosen the screw and turn the cable in or out to get 1/16 to 1/8 inch freeplay on the thumb throttle. Too loose and it won't idle, too tight and it will pull the throttle cable tight and rev engine. It could also be a carburetor issue if it runs with choke. Either the idle screw isn't adjusted or the pilot jet is plugged. There is a large thumb screw coming off the carburetor, turning clockwise will turn the idle up. Let me know if you need anything else, Daniel.

Sep 18, 2011 | Polaris ATV

2 Answers

Idle speed is low when put into gear, then jumps up and down; emissions light occassionally flashes. Seems to be a problem with engine timing or fuel intake ...


I would have throttle body and mass air flo cleaned and see how she runs after that.If these items get dirty they can mess with computer and make engine run erratic.if still running bad have tps sensore checked.(throttle position sensor)these are noteted for idle jumping around.

Mar 08, 2011 | 2006 Ford Fusion

1 Answer

BMX Four Wheeler is sluggish, like it isn't getting gas


check to see if your needle is stuck or seat has become dirty, possibly try changin your spark plug

Aug 01, 2009 | Quad 47 cc / 49 cc Pocket Mini Bike...

2 Answers

Engine on my 04 sportsman 400 wo'nt idle unlesss choke is partially pulled out. Runs fine when reved up but dies when I let off on the throttle. Dirty fuel filter or other ?


sounds like it is idleing too low. there is a screw with a spring on it on the side of the carb. screw it in all the way it will make it idle higher. hope this helps.

Mar 28, 2009 | Polaris ATV

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