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Posted on Aug 31, 2011

Hello. I have a Generac 5000w generator with a Briggs & Stratton engine. Purchases in Apr. 1997. The Engine info I gathered off it is: GenPower 10.0 Model 19G412, type 0129 01 code 9612061A. After using it this weekend to power my sump pump during the hurricane I went to store it. I added double the amount of Sta-Bil, then went to start it as instructed, but the pull cord just pulls freely, not seeming to "catch" on whatever starts the engine. The only resistance is from the spring on the cord. Thank God I didn't shut it down to refill it during the storm, or I may not have gotten it re-started. Is this something I could adjust or fix myself? If so, how? Thank you in advance. Greg

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Duane Davis

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  • Posted on Jan 20, 2019
Duane Davis
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Doesn't look like anyone came close to answering this question correctly.While I realise I am answering a VERY old post, a correct answer may help others that come here in the future who are experiencing the same problem.The issue is with the starter clutch. It screws onto the crankshaft and works like a ratchet wrench. It allows the crankshaft to turn freely one way but "catches" if turned the oher.

Most people don't maintain them properly so it gets rusty inside and the bearings don't move like they are supposed to. Hence the clutch doesn't lock.

It's usually a pretty simple fix. Remove the flywheel cover, secure the flywheel so it doesn't turn then use a rubber mallet and a drift to loosen the clutch. It has normal threads so it turns counter clockwise. It should come loose pretty easily. Once off, look at the front of the clutch. There is a cover which is just pressed on. You should be able to get it loose with a hammer and small flat head screwdriver. Carefull you don't loose the bearings (there are 6) which are pretty large. Clean the whole thing out, removing any rust and debris.Then spray the inside with some lite machine oil (don't use grease or any other thick lubricant).

The shaft should have a piece of felt in the center of it. This should also be soaked with machine oil. To reassemble; place the washer and shaft back into the housing, then place a bearing in each "hole". Give it another shot of machine oil and press the cap back on.

Put it back on the engine and replace the cover. You should now have a workng starter. There is a small hole in the front of the clutch. You should periodicaly squirt some oil into it to keep the clutch lubricated.

4 Related Answers

Sheldon Dedek

  • 912 Answers
  • Posted on Jun 12, 2010

SOURCE: NO 20amp 120v power

you probably tripped a circuit breaker. Carefully push in all the circuit breakers, I bet that one of them will give slightly and power will be restored.

Sometimes the 20amp outlet is also a GFI outlet. You may need to reset the outlet itself if so equipped.

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mamicheddy

mamicheddy

  • 79 Answers
  • Posted on May 08, 2009

SOURCE: I have a Generac portable generator 5000 watts, won't start!

I am assuming the generator worked fine before the oil change. Now that you have done the oil change the genset does not start. These generators have a safety switch, which is basically an oil pressure switch that keeps the engine from running when there is not enough oil in the engine. Make sure that there is enough oil and if there is, look for a wire that runs along side of the engine to a round component. disconnect that wire and try starting. If it does not start then try to ground out the wire to the engine block. If this does not work, then there is other engine problems.

kel1guy2002

Kelly

  • 3740 Answers
  • Posted on Apr 20, 2011

SOURCE: Hello, my Briggs &

Hi and welcome to FixYa. I am Kelly

Usually when you have a lower voltage output that is yet above 150 VAC the problem is as simple as the engine is no longer running at full speed. This could be caused by binding carb or governor linkages but more often than not the Governor adjustment screw has backed off over time causing the engine to gradually slow so the output voltage drops. The user does not notice it so much until the output drops more than 15% and you notice dim lights... slower running equipment etc.

Look for a circular plate / governor speed plate near the base of the governor lever but off to one side that has a spring that attaches to the governor lower end of the governor. There should be a screw with a locking nut. Loosen the nut and turn the adjusting screw clockwise to increase engine speed. (You may have to barely loosen the pivot nut on the governor speed control adjustment plate to make the speed adjustment.... tighten when done with speed adjusment) Watch your output voltage and adjust the voltage to 225 VAC with NO LOAD. The voltage will drop as loads are added. Make sure to tighten the lock nut on the adjusting screw or in a matter of an hour you will have low voltage again from engine speed dropping. What ever you do.... DO NOT adjust the governor arm base attach point where it attaches to the engine.

Just so you know a weakened governor spring can cause the speed drop also. If the speed keeps dropping with extended use, you may have to change the spring that goes from the lower end of the governor arm to the governor speed adjustment plate.

Thanks for choosing FixYa,
Kelly

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Anonymous

  • 2006 Answers
  • Posted on Jun 30, 2011

SOURCE: My 26 year old Briggs & Stratton 8 hp engine (on a

Did you remember to "wind" the cord when you replaced it. They normally have a spring type of set up that you have to wind before you bolt everything together.

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