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Anonymous Posted on Mar 19, 2013

Homelite z3850b won't start.

Very difficult to pull starter rope; seems like flywheel seized; partial or no movement. fresh fuel mix; spark plugclean and spark present.

1 Answer

Kelly Buxton

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  • Expert 322 Answers
  • Posted on Mar 20, 2013
Kelly Buxton
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Joined: Jan 15, 2013
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Will it pull any easier with the spark plug out?

If you need further help, I’m available over the phone at https://www.6ya.com/expert/kelly_69a0cf1b13789df1

Testimonial: "Yes. Checked piston movement. Fine. Am able to turn flywheel easily with spark plug in or out. However, when attach starter rope, it pulls out in rough hard jerky motion. It is almost impossible to get rope pull to extend to the full length of rope. Sometimes it will only pull out a few inches. "

5 Related Answers

Anonymous

  • 4088 Answers
  • Posted on Jun 17, 2010

SOURCE: homelite ranger 33cc chainsaw will not start.

Did you check for spark when the plug was out? It should be blue and snappy. If not, you need to expose the flywheel assembly by removing the left case cover, then remove the stop switch wire from the ignition module. If now sparks, check the stop switch and connecting wire for grounding. If still no spark, replace the ignition module. Use a thin businees card for a gap gauge--turn the magnets under the module, insert the card into the gaps, then loosen the mounting screws and let the module stick to the magnets. Tighten the screws and rotate the flywheel to remove the card, then turn the flywheel one full rotation and check that the gap doesn't close up at any point. If the original test had good spark, then pour some fuel mix into the plug hole and attempt start--if you get several pops, then check the fuel system. Start with checking the fuel filter which will commonly plug up over time and check the fuel lines for decay or damage. Does the primer button pull fuel into it when pumped several times? Go to: http://www.drystacked.com for a 12 page article on Walbro brand carburetor theory and trouble shooting. Note carefully the items within the lower chamber as they are critical to proper running. Hope this helps!

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Hairyloon

  • 45 Answers
  • Posted on Oct 07, 2008

SOURCE: Husqvarna Chain Saw Rope Pulls Very Hard, what is the cause?????????

Has it always done this or has it developed?
Some saws have a decompression button to make it easier to pull over.

steve_lima

steve

  • 181 Answers
  • Posted on Jun 06, 2009

SOURCE: HUSQVARNA model 435 Difficult starting

the problem is in the ignition coil.it needs to be replaced.it is under warranty.its warranty is life time.call husqvarna and they will either send you a new one or send you to a husqvarna dealer to fix the problem.that is at no cost to you..............let me know if this helped.................

Anonymous

  • 61 Answers
  • Posted on Jul 04, 2009

SOURCE: recoil spring on homelite chain saw doesn't retract pull rope

Easy suggestion would be to get new spring coil. Is it older saw? Have had to change mine on poulan saws before.

Anonymous

  • 2220 Answers
  • Posted on Sep 17, 2009

SOURCE: starter rope will not pull. Will pull smoothly

If I understand what you are saying... The starter pulls smoothly with the starter cover removed or when installed and the plug removed (no compression or spark). If this is correct I think your saw's timing has slipped or maybe a defective decomp valve. Time to visit your neighborhood chainsaw seller/mechanic.HTH
Lou

Testimonial: "cheers"

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Related Questions:

2helpful
3answers

The motor won't start

Older Homelite's love fresh fuel. Mix up a fresh batch of gas with the recommended oil ratio. Dump out the old gas into an approved container. Remove the spark plug for inspection and make sure that you are getting a good spark. If you are getting a good spark replace the plug and pour some fresh gas mixture in to the tank and follow the manufacturer's starting instructions. Generally they have a primer bulb press that in 5-6 times until it gets firm. Engage the choke and pull on the rope until it attempts to start. Turn the choke off and it should start right up.
If you did not have a spark on inspection replace the plug and repeat the process.
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Tiller won't start

Best advice is to spray some ether in the carb, if that doesn't start it up, then check the spark plug.
Mar 17, 2013 • Mtd Garden
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Won't start ; i have spark, fuel

It takes 3 things for an internal combustion engine to run... compression, spark, and fuel.
First perform a compression test. If its under 90psi the compression is too low and it would cost more to repair than to replace.
Sidenote: A unit that is extremely flooded will give a false low compression reading. Remove the spark plug, turn unit upside down so that spark plug hole is facing down and slowly pull the starter rope. If fuel drips out then the crankcase is flooded with fuel.
Next, be sure that your fuel is fresh and free of water. If the fuel is more than 20 days old it is stale.
Also, holding the spark plug against the head is not an accurate test for spark. A failed spark plug or weak module will fire when not under a load but will not fire when in the cylinder environment under compression. A spark tester is the best way to know for sure that you have a good strong spark.
Lastly, something you can do which requires no special tools is check the condition of the cylinder/ piston. Remove the spark plug then remove the muffler and look into the cylinder. You can pull the starter rope slowly to move the piston up and down. Observe the wall of the cylinder and the side of the piston. They should be smooth and shiny. A dull grey appearence indicates debris ingestion, grooves ( also called scoring) indicate metal to metal contact caused by a break down of the oil due to heat or lack of oil. The presence of scoring means that the unit is not cost effective to repair and should be replaced. Dull grey usually means low compression too.
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ECHO PB251 BLOWER. Noticed fuel running out of muffler. Cleaned spark screen, installed new airfilter, fuel vent, fuel filter. Ran unit - engine quit while at full rpms - will not start. Clicking noise...

Your flywheel has come loose on enj., this throws the timing off so it is firing at all different times except for when it's supposed to. therefore raw fuel is running right through the cylinder and out exhaust, If you are lucky you won't have to replace the 60.00 flywheel! remove fan side of case,and remove blower wheel, then flywheel nut then flywheel, it has a built in key in it, usually this is wasted from coming loose, make sure you use loctite and an impact to tighten flywheel nut back after you repair/replace flywheel.
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The problem the pull rope on a Homelite blower UT08934D doesn;t always retract. While working on it i found that the rotor was loose on the shift. I tighten the nut but didn't seem go all the way...

The Homelite/Poulan starter mechanism is of poor engineering and design. Problems with them are constant in the industry. They seem to work sporadically at best. If you have taken it apart, you have seen the inferior workmanship. Granted, all metal construction would wear also, but would be more heavier-duty and last longer. Another reason (the main one) why they don't last if from working the starter/recoil unit so much because the engine won't start. And when it doesn't, 9 times out of 10, it is a fuel system (carburetor) problem. Pulling on the wimpy unit 50 times so it can start once greatly reduces it's life expectancy, and overuse is the main reason they fail.
Aug 12, 2011 • Garden
0helpful
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Seems to flood easily. turn choke on pull rope 1 time then set half choke and still have to pull rope 30 to 50 times to start also seems to be running lean even though ive adjusted carb several times,...

Check the fuel filter, air cleaner, and muffler for plugging. Check the fuel lines for decay or other problems. Be sure that you have fresh fuel mix in the tank. Check the quality of the spark at the plug--it should be blue and snappy (plug gapped 0.020"). If weak looking, try a fresh plug first--if no help, remove the left engine case to expose the flywheel and ignition module. Turn the flywheel magnets just under the module poles, insert a thin business card into the pole gaps, loosen the module screws to allow the module poles to contact the magnets. Tighten the screws, and rotate the flywheel slightly to remove the card. Rotate the flywheel one full turn to make sure the gaps don't close up further. Reassemble and test for spark again. If ok, try for running the engine. Be sure the engine 4-strokes when running unloaded, but immediately 2-strokes when cutting by adjusting the H jet needle. Hope this helps!
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Homelite U2T608 edger/trimmer will not start. New plug gaped properly. Dropped carb, dissembled and cleaned out all ports. Fuel is flowing and is new. Motor wont even "cough." Suggestions?

Check the magneto for spark. Remove the plug and reinsert the wire and hold it against the engine as you pull the starter. You should get a nice, blue spark. If you don't see one, the magneto to flywheel air gap may need adjusting or the coil module is bad (rare). You basically need good compression, fresh fuel, good clean air intake, and a strong spark to get it to "pop." I realize you may know these things, but, most people are unaware of the .010"-014" air gap required between the magnets on the flywheel and the legs on the coil module. Disassembly is required to get to it and you take the same steps you would if you wanted to fix the pull rope. A standard business card has about the proper clearance needed between the aformementioned parts. Post back if needed. I am here to help.
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Petrol Engine will not start. The saw is a Stilh and I have not usaed it for 18 months

Ok first off drain all fuel out of the saw replace the fuel tank filter, then clean out the air cleaner, pull the spark plug out and with some and paper sand the spark plug so that it's clean. NEXT mix some new gas mix and add to the tank try putting the choke on full and pull rope about a dozen times then put choke in partial open and try starting. If it does not start pull spark plug and pull starter rope and see if you have spark if you do add a capfull of gas mix into the spark plug hole and tighten the spark plug down and try pull starting if it fires off and dies then you have a cracked fuel line and need to replace the fuel line. When you have the plug out spray a small amount of WD 40 into the sparkplug hole and pull the rope a few times to get rings lubracated then add the gas. If it won't start post here and I will give you more directions to test for starting again. HOPE THIS HELPS AND THANKS FOR USING FIX-YA.
Mar 17, 2010 • Garden
0helpful
1answer

No spark to plugs affter long storage. Don't have

There will not be any spark to the plugs unless the engine is running, or you are manually pulling on the rope.

Go to any auto parts store and get a can of starter fluid, a new spark plug and a new air filter. Pour out the old fuel and mix up a new batch. While at the store also get a small bottle of homelite 2 cycle oil to mix with the gasoline.

Install the new plug and pour in the new fuel mix. Leave the air filter off and squirt some starter fluid into the air intake as you pull the starter rope. It helps to have this be a two person job.
3helpful
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Cannot pull the pull rope. Feels like motor is froze but when I pull the pull rope cover off the pull rope pulls freely and I can turn the fly wheel by hand easily. Put everthing back togeather it will not...

PISTON COULD BE SEIZED DUE TO LOW OR NO OIL MIXTURE,ALSO IT COULD HAVE FUEL IN THE CHAMBER,FIRST REMOVE SPARK PLUG--NOW TRY TO PULL IT--HINT,STICK A SMALL SCREWDRIVER IN THE HOLE AND SEE IF THE PISTON RAISES AND LOWERS,,IF IT WILL RAISE/LOWER BY MANUALLY TURNING THE CRANKSHAFT,THEN THE PROBLEM IS IN YOUR INNER PULL ROPE ASSY.(THERE ARE DOG EARS INSIDE THAT SPIN OUT AND GRAB THE FLYWHEEL WHEN IT TURNS)
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