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Echo cs-370 chain saw will not start. Plug is wet, there is spark at plug, switch is on. Plug, air filter and fuel filter are new. Plug gap is correct.

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: what is correct fuel mixture for Echo CS 6701

"Echo Power Blend Universal 2-Stroke Oil can be used in all of our 2-cycle air-cooled equipment ever made. You may also use this oil in any other brand of 2-cycle air cooled equipment, but it should always be mixed at the 50:1 ratio whether or not it was a 32:1 or 16:1 etc. machine. This oil is the highest quality 2-cycle oil on the market today. There is no need to have more than 1 tank of fuel for your 2-cycle equipment any more."
The above excerpt is from the Echo FAQs (6) here:

Oil Mix Ratio:
The following ratios have been recommended for the last 10-15 years.
Dolmar, Echo, Efco, Homelite, Husqvarna, Jonsered, Makita, Oleo-Mac, Red Max, Ryobi, Shindaiwa, Solo, Spear & Jackson, Stihl & Tanaka; all recommend 50:1.
1 gallon of premium fuel to 2.6 ounces of quality 2-cycle oil.
4 liters of premium fuel to 80 milliliters of quality 2-cycle oil.
McCulloch, Poulan & Wen; recommend 40:1.
1 gallon of premium fuel to 3.2 ounces of quality 2-cycle oil.
4 liters of premium fuel to 100 milliliters of quality 2-cycle oil.
Chinese chainsaws recommend 25:1.

If you have more questions or need additional help please reply below and I will get back to you. HTH & Good Luck.
Thank You for using FixYa.

Posted on May 08, 2010

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SOURCE: what is the spark plug gap setting for small ECHO

0.020" should work well. Check the quality of the spark--it should be blue and snappy with the new plug. Hope this helps!

Posted on Dec 10, 2010

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SOURCE: need the spark plug gap

0.020" should get it running. Good luck!

Posted on Jan 19, 2011

  • 784 Answers

SOURCE: echo cs-370 chainsaw wont start.

Check air filter- is it clean?
Some plugs are without cilinder ok but if in place dont work. cahange the spark plug.

Posted on Mar 17, 2011

  • 479 Answers

SOURCE: Brand new Echo cs-400 chain

The manual is available here:

The idle speed of the negine may be too high.
Page 26 of the manual gives instructions for adjusting the speed with the "T" screw on the carburettor.

Posted on May 12, 2011

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Need plug gap for echo cs 351 vl

Recommended plug is NGK BM-6A gap .024" to .028"

Apr 05, 2013 | Echo Cs-351vl Chainsaw Parts Manual Chain...

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Doesn't start has spark @ plug fuel @

try starting meaning pull the rope 6 times and then check the spark plug if its wet clean it or try a new plug, if its dry your not getting fuel in the cylinder which means carb problems. if you have a seringe or something to put some gas into the spark plug hole then install spark plug and try it. if it runs for a couple of seconds then you need to focus on the carb. only put a small amount of fuel in the plug hole if you try it otherwise youll be pulling on the rope for awhile before it will start. hope this helps.

Jul 06, 2011 | Echo CS400 18" Chain Saw

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First use since last year. can't get to start. ran out of fuel before storing, oil is full.. help ! arm getting sore pulling cord..

First you should get a new spark plug which might solve the problem. If it still won't start what I normally do with chainsaws, lawnmowers etc is to remove the spark plug and pour about 5ml (one teaspoonful) of fuel into the opening. Dip the spark end of the plug into fuel so the spark gap is wet and replace the plug in the saw. Try starting it now. The fuel you poured in should ignite and may be enough to start the saw. You may have to repeat the process 2 to 3 times. Don't be tempted to use more than 5 ml of fuel or you'll flood the saw.

I hope this solves your problem.

May 28, 2011 | Homelite ZR10926 16" Chain Saw

1 Answer

Echo cs-370 chainsaw wont start. running fine the day before. good spark. fuel wet at muffler. plug always wet.

Check air filter- is it clean?
Some plugs are without cilinder ok but if in place dont work. cahange the spark plug.

Mar 17, 2011 | Echo Garden

2 Answers

Echo cs-3400 wont start . no spark. what are the primary and secondary coil readings?

if you have no spark

check for faulty plug 1st, then pull kill wire off at kill switch, then check for grounding ht lead ,
then pull kill wire off at armature , if still no spark most likley faulty ignition armature
i suspect the part number you need if its type 1 is 15662639130
replace it and set air gap and reassemble and test

here is web site for parts

or you could try , go to echo saws , then find your model

cheers hope it helps

pauly 46

Jan 28, 2011 | Echo 30.1CC Chainsaw With a 14 and...

1 Answer

I've replace the spark plug, put in fresh gas and tested it for spark. My CS 100 chain saw will not start. Any help would be appreciated.

The spark at the plug (gapped 0.020") should be blue and snappy. If ok, pour a little fuel mix into the plug hole and try for start. If pops several times, then you have fuel delivery problems. Check the fuel filter, air cleaner, and muffler for plugging. Check the fuel lines for decay or other damage. Make sure the primer bulb fills with fuel when pumped several times. If nothing, either the primer is damaged or the carburetor needs cleaning inside. While in the carburetor, inspect the lower chamber diaphragm for hardness or cracking. Go to: for a 12 page article on Walbro brand carburetor theory and troubleshooting. Hope that some of this helps!

Oct 23, 2010 | Echo CS400 18" Chain Saw

1 Answer

I would like some advice on how to tune a cs 3400 echo chain saw

Hi, you can't tune these, so if its not running smoothly, check air filter, clean and replace. Check spark plug, clean if necessary and replace. If problem persists it could be dirt in the carbretta, so flush this out with clean fuel, after this, drain fuel tank and replace with fresh fuel, ensure you have the correct mix of fuel.
Hope this helps

Aug 19, 2010 | Echo 30.1CC Chainsaw With a 14 and...

1 Answer

CS-670 . Cleaned fuel tank , lines , carb. New

Check for blue, snappy spark at the plug (gapped at 0.020"). If weak or nothing, remove the flywheel cover to expose the ignition module. Check the module gap with a thin business card--turn the flywheel magnets under the module poles, insert the card into the gap, loosen the module screws, and allow the module to contact the magnets, then tighten the screws. Turn the flywheel somewhat to remove the card. Recheck for spark--if ok, try for engine start. If still no spark, remove the ignition switch wire from the module and retry for spark. If still nothing, replace the module. Install per the above instructions. Hope this helps!

Jul 06, 2010 | Echo Garden

1 Answer

Saw was running great ,then just stopped and would not start again

Always keep in mind that you need 4 things to make combustion happen: Fuel, Spark, Oxygen (Air), and compression. One or more of these is missing and we need to figure out who is missing the party.
Let’s start with the basics:
Does it have gas? (Fuel)
Is the kill switch on? (Spark)
When you pull the cord slow does it give intermittent firm resistance? (Compression)
Is the air filter clean (Air)
Now you need to look at a few details:
Pull the spark plug out and checked for spark. This requires you to hook the spark plug up and let the plug lean up against the metal part of the head. Pull the cord, should be easy (no compression) and check for spark. Don’t hold plug with fingers as you may get a jolt. If no spark, try a new plug, still no spark check the switch and wiggle it around. Even if you have spark I like to install a new spark plug for this next test. With new plug in, pull at least 10 times, pull the plug and see if it looks wet. If it is wet, it is getting fuel.
Hope this helps.

Apr 01, 2010 | Poulan Wild Thing 2375 18" Gas Chain Saw...

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