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Changing Spark Plugs


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For consistent, easy starting, change your spark plug every 100 hours or every season, whichever comes first. Replacing your spark plug:

  • Ensures consistent spark
  • More reliable starting
  • Improves fuel economy

Step 1: Remove existing spark plug

1. Disconnect the spark plug lead. Then, clean the area around the spark plug to avoid getting debris in the combustion chamber when you remove the plug.

2. Remove the spark plug using a spark plug socket.

3. Clean light deposits from the plug with a wire brush and spray-on plug cleaner. Then, use a sturdy knife if necessary to scrape off tough deposits. NOTE: Never clean a spark plug with a shot blaster or abrasives.

4. Inspect the spark plug for very stubborn deposits, or for cracked porcelain or electrodes that have been burned away. If any of these conditions exists, replace the spark plug.

Step 2: Put in new spark plug

1. Use a spark plug gauge to measure the gap between the two electrodes (one straight, one curved) at the tip of your spark plug Many small engines require a .030" gap. Check for the specifications for your model.

2. If necessary, use a spark plug gauge to adjust the gap by gently bending the curved electrode. When the gap is correct, the gauge will drag slightly as you pull it through the gap.

3. Reinstall the plug, taking care not to over-tighten (15 ft. lbs. MAXIMUM ). Then, attach the spark plug lead.

where is the spark plug on my troy-bilt two stage snow thrower 305cc briggs engine?

Asked by: Teja1946
The spark plug is located under the snow hood.
Answered by: Nicole
Date published: 2014-01-07

what spark plug does the 675 series engine require

Asked by: skinny
To locate any information on your engine, you will first need the model type and code. Please see the following FAQ for assistance in locating these numbers: http://bit.ly/17rzznN Once you have this information you can find information on your engine here: http://bit.ly/12pIs1I Select engine as your product type and follow the directions for entering the model type and trim into the search fields.
Answered by: Nicole
Date published: 2013-11-22

I have a quantum power 5 hp /20 push lawnmower and the model # on the engine is 124702-3106-01 code 92072956 could you please tell me the replacement spark plug

Asked by: Tims
The part number is 796112S or you can use a Champion RJ19LM.
Answered by: Nicole
Date published: 2013-10-28

lawn mower #881403 Description #BT19550FC, what is the spark plug number do I need to get

Asked by: 2dllarbill
To locate any information on your engine, you will first need the model type and code. Please see the following FAQ for assistance in locating these numbers: http://bit.ly/17rzznN Once you have this information you can find information on your engine here: http://bit.ly/12pIs1I Select engine as your product type and follow the directions for entering the model type and trim into the search fields.
Answered by: Nicole
Date published: 2013-10-17

how do i fix this spark plug problem

ok so i got a 675 series lawn mower. i clean the filter and spark plug every so often. ive seem to have notice every single time i try to start the lawn mower it wont start and my spark plug gets oil on it every time which i beleive is my problem how do i fix this problem
Asked by: doesitmatter
If there is oil on the spark plug this can be caused by a bad piston ring.
Answered by: Nicole
Date published: 2013-10-29

My mower has a RJ19HX Champion Spark Plug in it-it's a B&S 625 engine. What is the equivalent spark plug I can use in it?

Asked by: LeeB
To locate any information on your engine, you will first need the model type and code. Please see the following FAQ for assistance in locating these numbers: http://bit.ly/17rzznN Once you have this information you can find information on your engine here: http://bit.ly/12pIs1I Select engine as your product type and follow the directions for entering the model type and trim into the search fields.
Answered by: Nicole
Date published: 2013-11-18

after tipping the engine and getting oil in it, is there a way to clean it up without tearing it down, so it can start better.

Asked by: labonie
Depends on how much spilled and where it is. Clean up the spilled oil. The engine will smoke until it burns off the remaining oil. However, excess oil outside the tank can enter the carburetor and combustion chamber. When this happens, the engine will immediately start having running issues, and, at this point, a service professional should clean out these areas before running the mower again.
Answered by: Terri
Date published: 2013-08-02

my engine is a platinum 126T02-1443-B1 11031065

what spark plug does it require? is it the RJ19LMC it currently has a champion 5861 thank you for your help
Asked by: gordo
Since this engine was made in March of 2011 you can use a standard RJ19LM.
Answered by: Nicole
Date published: 2013-07-29







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