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Tucumseh 13.5 engine backfiring when trying to start it. checked flywheel key and coil gap already.

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6ya6ya
  • 2 Answers

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: broken flywheel key

the slot on the flywheel and cranck might be worn check this allso check valve clearenc make sure flywheel is torque to spec.let me know want you find out.

Posted on Jul 24, 2009

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huffman49
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SOURCE: starts hard

check the battery. sounds like a weak charge...good luck

Posted on Apr 10, 2010

daneinwv
  • 124 Answers

SOURCE: how do you set the gap between the coil and the

Hello,
My name is Dane and I am going to help you solve your problem.
Too set the gap for the coil get a regular buisness card and use it as a feeler gauge. Loosen the bolts to the coil. Rotate the flywheel so the magnets are next to the coil. Slide the buisness card in between the coil and the flywheel magnets and make sure the coil is tight against the card.
Now tighten down your coil bolts and remove the busisness card. Turn the flywheel at least 1 complete turn and make sure it doesn't hit the coil. You're done!!!
Well, I hope I've helped. If you found this information useful, please leave me some THUMBS UP if you think I'm deserving! :-) Thank you! Dane

Posted on Dec 05, 2010

  • 24 Answers

SOURCE: what is the gap between

It is not as critical as some think. A regular playing card works great. Place in between and tighten up the bolts, piece of cake as they say.

Posted on May 08, 2011

BAMOUT
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SOURCE: briggs & stratton backfires & breaks flywheel key on starting

Be sure blades turning easy, one of spindel may have a bearing out or going out.

Posted on Nov 26, 2011

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1 Answer

Runs fine going down road but when you engage blades to mow it starts to back fire but it will keep running


Make/Model/Year/Engine size, these are helpful for a more precise answer.
However, you are describing a backfire problem that occurs when the engine is placed under a load.

The major contributors to backfire under a load (and in general) are:
1.Bad fuel
2.Weak Spark
3.Poor Timing
4.Poor seal due to valve considerations (adjustment and wear).

So here are the fixes:
  1. Check for good spark and replace the plugs. UN-burnt fuel, due to weak spark, causes backfire in the exhaust.
  2. Weak spark may be due to coil problems or bad coil gap. Check coil gap.
  3. Change fuel to the highest octane you can buy. Old fuel looses octane and does not burn as hot. Do not store fuel for more than 3 months.
  4. If your engine has a flywheel key, it may be damaged. This will throw off the timing.
  5. Check the valve adjustment. A sticky, bent, or worn valve can cause backfire. Worst case you may have to do a valve job (have the valves and seats reground).
These are your first line, mostly easy, fixes for backfire.

Mar 15, 2015 | Garden

1 Answer

I have a9hp briggs verticals shaft engine on a log splitter. When I try to start the engine after a couple of pulls it will backfire and pull the pull cord right out of my hand. I've been told that I have...


Far more likely is that the woodriff key , on the flywheel, is slightly stripped or sheared, due to sudden stoppage of engine. Remove shroud and flywheel (may need puller or help to do so) Check flywheel key(woodriff) to see if it is ok or partly sheared.

As far a valves, I doubt that they are adjustable. Look up gap for that engine and check, at maximum opening (Turn by hand )with feeler gauge (metal thickness gauge) open adjustment on valve. You will see how when checking the gap. Personally I still don't believe that they are adjustable.

Jul 21, 2014 | Measuring Tools & Sensors

2 Answers

Tecumseh engine backfires and wont start


remove the top cover from the engine and then the nut on the top of the flywheel look down at the space between the shaft and flywheel the key between the two might have sheared happens more if you hit a rock

Apr 30, 2012 | Craftsman Garden

1 Answer

5.5 B&S will not start. Flywheel key was damaged


Only the adjustment of the valves, if this is an OHV engine. You may want to check the "air-gap" on this engine (that is the exact distance between the ignition coil legs and the magnets in the flywheel). Here is a Briggs Check chart that has all those specs for your engine listed.

http://www.briggsandstratton.com/engines/support/frequently-asked-questions/~/media/71BB9DA0BD4D4C19A0DA611923A0B80A.ashx

Aug 13, 2011 | Briggs & Stratton Garden

1 Answer

Kawasaki 25hp back firing through the carby and exhaust


Hello,
My name is Dane and I am going to help you solve your problem.
Normally, when an engine backfires through the carburetor, It will be from a valve problem. You should first adjust the valve clearance looking also for any bent valves or pushrods.
The other thing I would check would be your flywheel to make sure it hasn't sheared a flywheel key, and check your coil and gap. This is doubtful, but worth a look if the valves check out ok.
I hope I've helped! Thank you! Dane

Dec 30, 2010 | Garden

1 Answer

Engine won't start and backfires


Did you loosen the coil when you changed the key? Check the setting between the flywheel and the coil. !0,000ths, I think.

May 17, 2010 | Briggs & Stratton Briggs Stratton Intek V...

1 Answer

B & S 13.5 HP engine. Won't start, good spark,backfiring on start


Likely incorrect flywheel. As for timing, the key in the crankshaft is it. Check also air gap at coil.

May 17, 2009 | Garden

2 Answers

What is left to do but change the flywheel?


check what they call air gap between the coil and flywheel .010-.012 gap
also be sure your flywheel is in time.
you will actually have to remove it to do this and check for the sheared key or be sure the key way aligns with the crankshaft keyway on the flywheel

May 17, 2009 | Mantis 2-Cycle Tiller

1 Answer

Flywheel magnet came loose


Hello, my name is Mark
Sorry to say but the only way to fix it is to replace the flywheel. After you put the new flywheel on you will have to double check the gap between the flywheel and the coil if you take a business card it should just fit between and should be a little snug. If the coil is off a little you will have problems starting. You can adjust the gap by loosening the 2 bolts on top of the coil lust enough that you can tap the coil towards the flywheel, just before you loosen the bolts turn the flywheel so the magnets on the flywheel are not where the coil sits but just to one side or the other of the coil, then set the gap, tighten the bolts and turn the magnets are where the coil is with the business card in between. It should be fairly snug to where you can just get the card out and not tear it in any way. Put your cover on and check for spark and you should be ok. Any questions please feel free to ask. Good luck and have a nice day.

Mar 25, 2009 | Troy Bilt, Tuffy, Rear - Tine Tiller, 4.0...

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