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61 mga excessive fuel leaks I set the jets up the car idles great when checking the front carb does nothing when I lift the piston the back carb does react when I lift it, I check both with a uni sync

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  • Cars & Trucks Master
  • 2,870 Answers

Before adjusting check the piston needle for ware then make the float is set to the correct level then tune them , the float level is most important .

Posted on May 03, 2019

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6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Benimur
  • 6966 Answers

SOURCE: I have a 2002 Yamaha

Hi and welcome to FixYa,

Based on your description, bike will start if you spray fuel into the carb, then the carb is not getting fuel. A couple of ideas you may want to explore/check/clean:

  • fuel valve;
  • some fuel valve have 3 positions, OFF, ON, PRI where the ON would only allow fuel to flow if there is sufficient vacuum from the intake manifold; the PRI allows fuel to flow unrestricted;
  • float settings of the carb;
  • fuel filter. Some tanks have built-in strainer/filter right before or part of the fuel valve.
Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Posted on Nov 27, 2008

  • 86 Answers

SOURCE: 2005 ktm 520 won't idle, cleaned carb new diaphram

did you try adjusting the air fuel mix screw?

Posted on May 21, 2009

Benimur
  • 6966 Answers

SOURCE: My 50cc 2 stroke engine won't start, it has fuel

Hi and welcome to FixYa,

A couple of ideas:

  • fuel to the carbs - as you posted checks good;
  • fuel inside the carbs - loosen the drain screw at the bottom/bowl. Check for quality / quantity of fuel;
  • fuel into the combustion chamber - check the plug (would be wet).
For a no start 2 stroke engine with your described condition, a possibility to consider is too much / unburned 2T oil in the lower combustion chamber; remove sparkplug, air dry (or use compressed air).

Good luck and thank you for asking FixYa.

Posted on Sep 09, 2009

  • 274 Answers

SOURCE: Honda generator ei3000. Will run only a few mins

Tank filter not blocked? (Take tap off tank) Enough oil in motor? Try overfilling it slightly

Posted on Oct 23, 2009

elstretchie
  • 140 Answers

SOURCE: 2001 honda shadow vlx 600 idles fine will not take

G'day mate 1st there will be a small gauze filter in the fuel tap ,may also be little gauze at needle and seat in carbs 2nd have you got an air leak , check this by letting the motor idle and spray around the carb where it goes onto the head with WD40/CRC/RP7 style lubricant if it revs up , you got a leak, 3rd remember that a coil will take much more power to rev an engine up than to let it idle . hope this helps

Posted on Mar 31, 2010

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Hi I just want to how much easier is it to tune an edelbrock carb then a quadrajet carb


Edelbrock cars are square bore and Quadrajets are spreadbore make sure you have either an adaptor plate if running stock manifold or you'll have vacuum leaks, as far as tuning Edelbrocks are EZ. 2 air/fuels screws that only effect idle, turn in till runs rough then back out 1/4 to 1/2 turn on both, that will set it for economy, for performance engines, turn out or counter clockwise till runs rough then turn back in clockwise 1/2 to full turn, set idle ***** and your good to go, the two vacuum ports in front are distributor advance, the right side closest to manifold is full time vacuum hook there for performance or left side for economy.. if you buy a new edelbrock carb it will run great right out of the box, also has a set/up DVD, for novice Mechanics, ez to change metering rods too, hope this helps, and in my opinion Quadrapuke carbs are junk.
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88 Suzuki Samurai idles fine but wont take gas?


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I have a 2002 yamaha kodiak 400. It wil idle, but when you give it throttle it dies, you can hold your hand partially over the intake and it will take the gas fine. What do I do?


Hi Rick

If old gas has may have always kept in the carb over the winter or over time gas turns to a varnish like gooing,, when not Eng not running for a long time,,, and it may have plugged you Idle jet inside under the bow... whats happening its starving for fuel and that jet is not letting enough fuel through the Idling circuit of your Carb,, and wont Idle so putting your hand over the carb you are getter more fuel through cold start jets and circuits or you may even have water and dirt in the jets and bowl check you fuel tank if it fresh fuel check your fuel filter replace it if you going to clean out carb always use fuel stabilizer in your fuel tank just incase you dont get to fire it up some seasons , one other thing look for any vacuum lines off or loose carb bolts and screws. Bottom line time to blow out the carb and even sock t carb cleaner if real bad but you need to remove all rubber parts from Carb I would leave it just take bowl off remove jet and look for small passage ways in the jets u need a real thin stiff wire like they use for weldig torch tips find one that fits.

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My jeep will idle fine but when I give it gas it just bogs down. When I let off the gas it cathes back up. I have replaced the mapp sensor, throttle control sensor, checked te exhaust to see if the...


1988 model? Does it have a carb or an injector? If carb then please clean the fuel jet/needle. When this is blocked you have a problem like yours. The fuel is coming for idling but when you need more fuel to run the vehicle, it fails to supply.

Mar 03, 2011 | 1988 Jeep Cherokee

1 Answer

Have to keep engine choked for car to run


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Feb 01, 2010 | 1984 Mazda RX-7

2 Answers

Chevy


Try adjusting your air/fuel mixture screws. Turn them all the way in and turn them back out 1 and a half turns. This will base line you. Double check for vacuum leaks at the carb. and intake. Spray some WD 40 along the intake where it meets the heads and see if your engine idle changes. If it does, replace you intake gaskets with a good set. Replace carb. mounting gasket. Check for any unplugged vacuum ports. Once you're able to idle it down to 1000 rpm's, turn your mixture screws in until the engine stumbles and turn screws back out until the engine achieves the highest rpm and turn in again only at a 40 rpm drop.

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