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How to lean the filters

How to take out filters

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Fuel metering too lean why ?


A lean fuel mixture is usually caused by unmetered air entering the motor. ( vacuum leak ). Have a look for any disconnected or broken vacuum hoses. Take a look at the air intake tube from the air filter to the throttle assembly to make sure it is tight and connected properly. A weak fuel pump or a restriction in the fuel filter can also cause a lean condition. Another problem could be a MAF sensor giving false readings.

Apr 06, 2015 | Cars & Trucks

1 Answer

FUEL BANK LEAN, WHAT CAN CAUSE A LEAN FUEL BANK?


Its Lean when you have more air then gas. Its Rich when you have more gas then air. So if its too lean check your air supply, filters, etc.

Mar 08, 2015 | 1999 Dodge Intrepid

1 Answer

Cub cadet 173 cc ohv running to rich. How do I lean?


the lean on the side of carb before doing this replace air filter and plug then adjust if need most lean problems come from dirty filter or plug

Sep 04, 2013 | Garden

2 Answers

2000 Lincoln Navigator - few days ago started idling very rough when truck is at a stop or in park. Service Engine Light came right around time I noticed that it was idling rough when stopped. Following...


P1131 Lack of HO2S-11 Switch ,Sensor Lean
P1151-Lack of HO2S-21 Switch ,Sensor Lean
PO171- System to Lean (Bank 1)
PO174-Systen to Lean (Bank 2)

Fuel Filter -Plugged
Low Fuel Pressure
Evap System -Leaks
Leaks - in ducting,air filter to throttle
PCV -Leaks
Exhaust System -Leaks
O2 Sensors-worn out

Apr 06, 2011 | 2003 Lincoln Navigator

1 Answer

Says on code reader my system is to lean


I would check your air filter and fuel filter, often, if those are dirty, it can contribute to a motor running lean.

Nov 01, 2010 | 1998 Ford F150 Regular Cab

1 Answer

Model 3516 gas chain saw runs for about 10 minutes and conks out. Wait a one day and it starts up but does the same thing. Has new spark plug cleaned air filter and proper mixture of fresh gas and 2-cycle...


The engine can be running too lean (plug will show you that, very grey and dry.) crank seals leaking (lean) blocked fuel filter in the carby and pick up hose(lean) mixture setting too lean. You can try 1st by turning the H needle in the carby anti clockwise a 1/4 of a turn and try it. only the H needle. If this does'nt do anything check the others.

Jul 02, 2010 | McCulloch 16 Inch Gas Chain Saw MCC1635AK

1 Answer

2002 Kia Sedona 3.5L V6. Computer reads lean fuel mixture. Already replaced fuel filter and pump. This mixture problem has existed for over 3 years and has baffled more than 6 ASE mechanics. What are...


Fuel Filter and Pump-won't cause a lean condition,unless you don't have sufficient volume.
Air leaking in around injector O-Rings
Any kind of air leak,including intake manifold,loose O2 Sensors,Etc,Etc

6 ASE people should be able to figure it out!!!

Look at all Data on an Oscilloscope.
The fact that the computer reads lean--IS IT a lean condition.
Check tailpipe emissions to confirm,lean

Apr 29, 2010 | 2002 Kia Sedona

1 Answer

Chainsaw only runs when i take off the air filter and keep it at high revs,as soon as i take finger of the trigger it cuts out and wont idle.ive already cleaned out the carb,checked fuel,cleaned filter and...


It sounds rich to me try turning the "L" needle CW a little. CAUTION CW is leaner, to lean will destroy your saw. Adding the air cleaner leans out the mixture. Adjusting it with the air filter off can cause a run lean condition when installed.
Carburetor Adjustment by Madsens.com
http://www.madsens1.com/saw%20carb%20tune.htm
  • CW is leaner; to lean will destroy the saw. If over tightened closed (CW) the adjustment screw faces are easily marred; marred adjustments are difficult to impossible to set properly.
  • Clean the air filter; adjusting with a dirty filter can cause a run lean condition once cleaned and the saw run.
  • Clean the spark arrestor and muffler; if the saw cannot exhale it cannot inhale.
  • There are 2 wav (sound - idle & full - may not be highlighted) files that I find most helpful, I think you will too.
If you have more questions or need additional help please reply below and I will get back to you. Good Luck. HTH
Lou
Thank You for using FixYa.

Apr 24, 2010 | McCulloch Garden

2 Answers

Its running lean an feels like a miss


Check fuel filter and air filter.

Nov 20, 2009 | 1994 Mercury Cougar

2 Answers

My 97 buick stalls some time and wont start for while


remove maf sensor and check for air filter debris on it, gently blow off debris taking care not to damamge the wires on the sensor. also check forvaccum leaks as this can cause a lean condition

Nov 28, 2008 | 1997 Buick LeSabre

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