Question about ECHO, Inc. PB-251C Handheld Blower

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Hi. How many wires come out off the handles

Hi. How many wires come out off the handles on/off switch. My blower turns on if I plug one wire but once I put the ground on the blower it shuts off. its a echo pb-231 LN

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There are 2 wires. 1) ground and 1) to switch. It sounds like you have a bad switch.

Posted on Apr 10, 2009

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Stalled out does not seem to get spark


First, you must find out if your getting spark or not. Remove plug, and ground it to the motor and pull cord, see if your getting spark. If you are, then your problem is your not getting fuel. If your not getting spark there are a couple of things that can cause this. !st, defective spark plug, Second, cable from control handle to engine may have stretched and is not releasing the kill switch. Disconnect the kill switch wire and check to see if you have spark, if you have spark, replace engine control cable. If with kill switch wire disconnected you still have no spark, you would have a defective magnito coil, which is rare, but does happen. This engine control cable kills the spark when you release the handle and also is the engine brake, It serves two functions.

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1 Answer

It will not start and has no spark. I pulled the plug and let it hang and had no spark. I did the same thing with a spark plug and still no change. Can anyone help me


First of all- your methods of testing spark are ... unsatisfactory.
You need a spark tester and a good unit ground to determine the condition of the module.
For preliminary tests the spark plug needs to be grounded. Insert the plug into the spark plug boot and make sure there is a good connection and make sure the plug is grounded by touching the threaded part of the spark plug to a solid engine component. Usually the cooling fins of the cylinder or head. Once the plug is grounded proplerly then pull the rope and check for fire.
Once you are satisfied that there is no spark then unplug the ground wire from the module and check for spark again. If you have spark then its a switch or bad wire problem. If still no spark then replace the module.

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1 Answer

Idle good on ground but pick it up and it stops


Therory #1
Electrical short or ground
You might have a wire to the coil for 'kill switch' in the handle assembly that is connected to the Off-On switch and is being pinched by something when you pick the unit up. If you pick it up by the body or base, does it die, or is this only when you pick it up by the handle.

If you pick it up by the handle(only), I suspect a pinched wire:
Therory #1

If you pick it up by the base, I suspect it is fuel related:
thus therory #2

Theroy #2
Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
Chain Saws:
5) check impulse tube and intake boot for cracks or leaks
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside

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358.794920, 200mph, won't start, no fire to spark plug, craftsman leaf blower


if you have no fire to the plug of course you have replaced the plug but now find the kill switch wire disconect it then see if it fires if it doesnot fire it is the ign coil

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I have a Pulan Pro 25 gas air blower. The rope


hi there the wire sounds like it goes to the chasis of the machine (earth) but it could also go onto the coil but if it comes off the kill switch then it will go onto the chasis earth (metal casing) hope this helps ben

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Attach ground wire


assuming its an electric blower----- plastic blowers normally do not require an earth wire, check your plug to see how many wires in it,if it has only 2 wires in it[live and neutral] then the blower has no earth wire.if you dont feel safe in using blower add a safety trip switch to the socket and then plug in to the safety switch.this protects you.. you can buy the t/s in any good electrical store.

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4 Answers

Poulan Pro 200 Leaf Blower won't start. I have installed a carb kit with no results. The spark plug was wet before the new kit---it continues to be wet. I have tried a replacement spark plug with no...


Alright, remember that 2-Stroke motors are meant to do 2 things:
Break down, then Frustrate you.

So, here we go: (Electrical)

Rotor Magnets, Magneto (ignition coil), Spark Plug Wire, Spark Plug, Spark Plug Ground (Cylinder Head).

In that order!

Check your "fire" from the Magneto:

1. Check your Kill Switch. In other words, leave everything normal, and unhook it. Did she start? Kill Switch it is! Kill Switch/Wire comes from the Magneto (single wire/ground) to the Switch itself. So check that wire AT the Magneto (Is it loose and grounding out? Is the Kill Switch grounding you out where it is, because of crud, junk, or because it is touching the block when it is not supposed to?)

2. Check your Spark Plug Wire. Easy, unook it from the plug, stick your finger in, give it a crank (non-MultiMeter way). Did you get shocked? Then it ain't your Plug Wire and Magneto!

With a Multi-/Volt Meter, simply hook her up, and check for juice WHEN you pull the rope. If you got juice, it ain't your Plug Wire or Magneto!

Checking Spark the "normal" way: Grab the Plug with a pair of insulated pliers, hold the plug end against the cylinder head, and pull your rope. Any Spark? What color?

3. STILL no fire. It leaves: Magneto and Plug Wire.
Luckily, they are both in the same place! Tear your blower down, and check to see if the Magneto has slipped out of place (gap is WAY out), or if the Plug Wire has worn to the point it is grounding you out. While you are there, check your Kill Switch wire, to see if she is grounding you out then and there.

4. STILL no fire. That means: Magneto Failing, or Magneto JUNK.
Buy another one, replace it! (Or steal one from another junk Blower/Weedeater. These things are fairly standard, and easy!)
Or, Bad Plug Wire. Meaning she has failed out on you.
Wait......that means: Replace your Magneto! Lucky the things are built together right?

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1 Answer

Leaf blower


One suggestion, unscrew the spark plug and reconnect the high voltage wire. In a very dark area move the plug so that the plug thread touches some metal on the engine. Pull the starter cord. If you don't see a spark, remove the two screws on the handle and see if two wires are attached to the Stop Engine Switch. Remove one wire and bend it away from metal and try to see spark when pulling the start cord. If spark occurs, the Switch is shorted and needs replacing.

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