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Brian BennetMichael Harris
  Feb 3, 2023 9:57 AM

A portable maintenance kit is a compact set of tools and materials designed to provide the essentials for making minor repairs while on the road. Such kits are most often used in aviation, by car owners, and by campers who may have to make repairs while away from home.

The best portable maintenance kit should be lightweight, easy to carry, storable in a small space, and capable of doing all necessary maintenance tasks. It should be available where you need it and you needn't worry about forgetting something back at home.


Keep up with maintenance schedules to ensure your backup or portable home generator is in top condition and meets warranty requirements. Failure to perform scheduled maintenance can cause your generator to fail, just as a car can fail if it's not changed and filled with oil. Scheduled maintenance protects your investment, prolongs the life of your generator, and gives you peace of mind knowing it will be ready when you need it most.

1. What parts are included in the portable maintenance kit?

Each service kit includes genuine original equipment manufacturer Generac parts, Generac 5W-20 GEO Fully Synthetic engine oil for home backup vehicles, and Generac 5W Fully Synthetic engine oil- 30 for portable generators. This maintenance kit has all the parts needed to maintain your mobile or home backup generator. Kits typically come with air filters, spark plugs, liter oil bottles, funnels, shop wipes, and service reminder cards. Depending on your generator, the number of parts may vary. Please consult your owner's manual to find the right maintenance kit for your generator. However, we recommend contacting an independently Authorized Service Dealer for all your maintenance needs.

the portable maintenance kit


2. How do I install the portable maintainer kit?

The first step

We recommend contacting an Independent Authorized Service Dealer (IASD) to service your generator. Before performing any maintenance work, please consult your owner's manual to ensure you use the correct portable maintenance kit and follow all preventive safety precautions.

Routine maintenance of backup generators at home includes changing the air filter, oil filter, and spark plugs, changing the oil, checking engine valve clearance, and checking the battery.

Every 200 hours, change the oil filter and engine oil. Find the location of each in your owner's manual. Start by running your generator in manual mode for a few minutes to warm up the oil. Then set the generator to Off. When the unit has cooled and turned off, remove the front panel. Move your matching container to collect the oil under the drain. Pull the drain hose out of the clamp and remove the cap. Place the hose in the container to drain all the oil. When finished, close the cap and place the hose back in the clamp.

The second step

Next, remove the oil filter by turning it counterclockwise. Get a new oil filter and apply a light coat of clean engine oil to the gasket. Twist the new filter by hand until the gasket makes slight contact with the oil filter adapter. Tighten the filter 3/4 turn.

You can now pour fresh oil into the engine. Remember to use 5W-20 GEO fully synthetic engine oil for your home backup generator. A 10kW – 24kW generator will consume about one and a half oil bottles. Using the funnel from your maintenance kit, slowly pour the new oil into the reservoir. Before starting a new bottle, put the dipstick or full cap back in the tank and run the generator by hand. Run for a minute and check for leaks. Press the off button to stop the engine and let it cool. Check the oil level and add more if necessary. Make sure not to overfill your generator.

While your portable generator is still in the off position, replace the air filter. After changing the oil, be sure to wash your hands to remove excess oil. Locate your air filter. Remove the cover to find the old filter. Could you take out the filter and remove it? Clean the cover of any dust or debris. With the new filter included in your maintenance kit, please place it in the housing in the same location where you found the old filter. Close the filter cover and close the clamp.

The third step

The next step is to check your spark plugs. Depending on the size of the generator engine, you may have one or two spark plugs. Generators with 410cc engines will only need one spark plug, and generators with 530cc engines or more will need two spark plugs. Your scheduled maintenance kit will have the correct number and size of spark plugs. Locate the old spark plug and clean the area around the base of the spark plug(s) before removing it to prevent debris and dirt from entering the engine. Remove the spark plug along with the spark plug socket and check. If it is worn or has a re-usability problem, or if the spark plug gap is out of specification, replace it with a new one. You can check the clearance with a wire sense meter. When installing a new spark plug, tighten it to 18.4 ft-lbs.

Remember to put the generator back into Auto mode after performing maintenance.

service the generator

3. What maintenance do I need to do with my generator, and how often?

Maintenance requirements vary between home backup generators, portable generators, and inverters. Always refer to the owner's manual before performing any form of the maintenance yourself. We recommend contacting an Independent Authorized Service Dealer (IASD) to service your generator.

If you are doing your maintenance, remember all safety precautions, including proper personal protective equipment.

Regular maintenance for a home backup generator includes changing air, oil, and oil filters, spark plugs, checking battery charge level, trap traps, and valve clearances, and cleaning the generator of dust, dirt, and debris inside the case outside around the device. Your generator usage determines maintenance intervals. Your generator will need to be oiled and checked for fuel, oil lines, dirt, and debris around the shutters if the unit is being run daily, such as in the field-prolonged power failure. When changing the oil, use only Generac 5W-20 GEO Fully Synthetic engine oil to protect your engine. On the other hand, maintenance intervals occur between 200 and 400 operating hours or every two to four years – whichever comes first. Repairing chipped paint will protect against corrosion while installing a base shield protects your generator from unwanted residents.

Portable generators require checking the engine oil level before each use. After 100 hours or yearly, change the oil and check/clean the spark arrestor. Spark plugs should be replaced annually. Valve clearance should be checked annually or every 300 hours. Every 200 hours, the air filters had to be cleaned or replaced. When changing oil, use only Generac 5W-30 fully synthetic oil to protect and prolong the life of your engine.

home backup generators, portable generators, and inverters.


Portable maintenance kits vary in price; however, getting the best portable maintenance kit is money well spent to protect your investment. Avoid unscheduled maintenance that can cause engine failure and other damage to your generator. Performing scheduled maintenance on your backup generator or portable generator at home will preserve the generator's life and maintain its warranty status.

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