Leaf Blower-NEW ignition coil & still won't start?

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Is the crankshaft keyed to ensure the flywheel can go on one way only?

Have you checked all of the associated wiring to ensure everything has continuity?

As mentioned above, find the proper spec for magneto clearance and ensure the new ignition module is properly secured. Be careful when tightening the fasteners for the ignition module to ensure you don't lose proper clearance.

Is there anyway to confirm the new ignition module is working properly?
 
With the plug in and you pull the starter you should feel some compression? good enough?

It is either spark or lack of fuel. Pull the spark plug, insert it in the wire and in the dark evening pull the cord fast. If you see a spark it is good enough.

Fuel ...you hit the priming bulb a few times and pull starter and its not firing? pull the plug it is wet? An old 2 stroke trick is to not use the priming bulb but shoot wd-50 either thru the spark plug hole or into the carb. WD will fire a 2 stroker right up if the spark is good. Fist make it run on priming fuel then move on the fuel tank or hose

My old echo the fuel line right where it went thru the fuel tank had micro cracks so the carb could not draw fuel.
 
The strips of paper method is a very accurate way to set the coil gap. I just had a similar issue on my Robin mower engine. It runs now but lean. I cleaned the carb out twice. There is probably something in a passage or the main jet tube. Before I properly set the coil gap and put a new plug in, it was dead like yours. My gap spec is .008-.016" so I set at .012". A coil is $150 on my engine, and parts are very hard to get. I am going to put new head to carb gaskets on next in case there is a small air leak. Have to get the specs, guessing won't work.
 
Primer bulb(good pressure) works fine and returns fuel to the gas tank. Cylinder and spark plug are getting fuel. After too many pulls of the starter rope, the plug is wet. Could be too many primes and may be getting flooded?
 
Originally Posted By: Kamele0N
Try also to "re-align" your flywheel...could be that it has moved a little bit...or check timing...


Hmmm, these are all things that I am not knowledgeable of. I can on a car but, funny thing, I don't know on an OPE.
 
Originally Posted By: andyd
Sounds like you flooded it. Take the plug out. Pull the rope a few times leave plug out and try it in the morning.


Thanks, I have been doing that. I have just never had this much trouble trying to get this blower started.

3 weeks ago, the blower was on full throttle while cleaning up grass clippings. The engine quit immediately at WOT. After inspection, I noticed that the wire broke off of the spark plug so I mended it. Started up again and finished the job around the yard. Used the blower again the next week and it ran GREAT!

Since then, it hasn't started and I narrowed it down to NO SPARK...This is when I ordered a coil.

Now, I am stumped. Could it be the ignition timing was thrown off at the sudden STOP?
 
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Can you re-make the connection on the old coil? You know it worked once upon a time. You don't necessarily get that from new parts these days.
grin2.gif
 
Well, the old coil wasn't allowing the engine to start either(w or w/o the ignition kill switch connected). And I do accept that the old coil may not have been the issue since I can't get the engine started now either(w or w/o ig kill switch)!

Who knows, it could be the carb or ig timing. I could keep throwing parts at it and still not have it start. And since I am not a small engine repair guy and don't have some of the proper testing eqip & full knowledge/understanding of these small engines, I may just buy another new leaf blower.

Keep in mind that this leaf blower is a Craftsman $89-$99 on sale special 7-8+ yrs ago. This time, I may invest in a better brand of leaf blower since I use the snot out of it especially in the FALL(2+ hrs/week) as I live in a wooded area and the foliage is unbelievable. In the SUMMER months, it gets used regularly(20 minutes) but, only to remove grass clippings from driveway & patio and such after my own lawn cutting.

Could be time for a new blower?
Any recommendations?
 
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Kamele0N and I both told you what to do. IMO either the spark arrestor or exhaust port is carboned-up, or the piston/cylinder is scored (in which case, the blower is toast). First, clean or remove the spark arrestor screen. Try to start it. If it still doesn't start then pull the muffler and look in the engine's exhaust port for carbon buildup and scoring on the piston.
 
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Go get a new one. Last summer my wife wanted to weed wack and our 15 yr Husqavarna 322L fuel lines turned to mush. She got mad and ordered a slightly smaller Husqavarna. The parts came in a few days later and now I have 2 fine running weed wackers. But some of the smaller off name stuff has a very short life. Getting the old one going wasn't hard,all you need is a 4mm 5/32 Allen wrench to get the housing and carb off. I ran the Mantis today. It is kind of a pain to use,because the manual suggests draining the tank and running the carb dry. So I filled it. It popped on the 3rd pull and caught on the 5th. Tilled a 25 sq ft bed in about 5 minutes. Drained the tank and ran it till dry. It was real close to getting tossed this spring, when ,lo and behold it fired once to give me hope.
 
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Originally Posted By: wag123
Kamele0N and I both told you what to do. IMO either the spark arrestor or exhaust port is carboned-up, or the piston/cylinder is scored (in which case, the blower is toast). First, clean or remove the spark arrestor screen. Try to start it. If it still doesn't start then pull the muffler and look in the engine's exhaust port for carbon buildup and scoring on the piston.


Yes, I remember. Here's a question.

If I am getting an exhaust(puff-puff-puff) each time I am pulling the rope to start, does this tell you anything?

Not a puff of smoke mind you, but if I put my hand in front of the muffler while pulling the rope to start, I can feel the puff.
 
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Originally Posted By: Char Baby
Originally Posted By: wag123
Kamele0N and I both told you what to do. IMO either the spark arrestor or exhaust port is carboned-up, or the piston/cylinder is scored (in which case, the blower is toast). First, clean or remove the spark arrestor screen. Try to start it. If it still doesn't start then pull the muffler and look in the engine's exhaust port for carbon buildup and scoring on the piston.


Yes, I remember. Here's a question.

If I am getting an exhaust(puff-puff-puff) each time I am pulling the rope to start, does this tell you anything?

Not a puff of smoke mind you, but if I put my hand in front of the muffler while pulling the rope to start, I can feel the puff.

The exhaust doesn't have to be completely clogged with carbon to have enough back pressure to keep it from running.
If you have scoring on the piston or cylinder it will still give you a puff-puff from the exhaust and it can even seem like the compression is good, but compression on a 2-cycle engine is a two way street, the combustion chamber compresses on the up stroke and the crankcase compresses on the down stroke, so even a slight loss of compression can cause it to not run.
The engine could also have a crankcase air leak that would cause it to not run, which is a common problem on that engine.
 
I removed the muffler. The exhaust port is clear, the spark arrestor is clean but I cleaned both anyway. And I don't see any piston/cylinder wall scoring. The last time I used the blower(2 wks ago) it started quickly, ran perfect & strong...One week later, it wouldn't start and hasn't since. I had used the blowers weekly.
 
Originally Posted By: WobblyElvis
Hold your thumb over the plug hole and pull the cord. Should blow your thumb off

Don't forget to make a video!
 
I can tell you of my Stihl chainsaw recently. Had good spark and fuel but made no effort to start. The timing was off enough to prevent it from starting. When I pulled the flywheel, the "built in" key was half sheared, shifting the flywheel slightly. It started right up after changing the flywheel with its well thought of integrated key, which is another story.
 
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