What’s the proper maintenance to revive a lawnmower that’s been idle for 4 years?

I have a Craftsman 6.0 HP lawnmower that’s been in the garage for 4 years. I love it but want to use it. The fluids were never drained from it. I’m afraid that trying to start it up will damage it if I don’t do the right maintenance on it. Help from anyone on the right maintenance will be appreciated.

Do I still need my pool maintenance during the autumn and winter months?

I have a chlorine pool and have a guy who provided maintenance it throughout the summer. Do I still need him to maintenance it during the months we won’t be using the pool? Should I drain the pool altogether before the maintenance and do I need to top up the chlorine?...

6 Responses to “What’s the proper maintenance to revive a lawnmower that’s been idle for 4 years?”

Liliana Mccaffrey Said:

I would drain the oil and refill it. Check the air filter and clean or replace. Drain any fuel from the tank and make sure the tank is clean. Remove the sediment bowl from the bottom of the carb and wipe clean. If the bowl looks bad consider removing and cleaning the carburetor. Put fresh gas in and start it up.
Sidney Freshwater Said:

Definitely change the gas…it’s gummed-up standing in that closed tank for so long.
And of course a new plug.
And start it by spraying some starter fluid (a spray) the first time.
Jaiden Dove Said:

As was said, change oil, clean air filter, starter fluid may be necessary (spray into the air intake or sparkplug hole, not too much). When you do get it running spray in some carb cleaner too to clean out the carb.
Giselle Whyte Said:

i have been a small engine mechanic for about seven years, so i’ve seen this problem more than once. start of by removing the sediment bowl, dump it out and spray it with carb cleaner. be careful not to get any cleaner on ANY gasket or seal as they will be ruined. take out the pin that hold the float and remove the needle BE VERY CAREFUL this needle is easy to lose. spray cleaner through the needle seat and rplace needle and float. there should be a stem beside the needle seat, this contains a jet, spray cleaner in the end to clean. reassemble the carb and reattach to motor refeul and replace oil and start mowing. if problem(s) persist feel free to contact me via e-mail. good luck
Anya Alderson Said:

1.Change the gas, drain the tank.
2.Change the oil.
3.New air cleaner
4.New spark Plug
5.Prime the carb with some starting fluid
6.Start it up
7.walaa
Kamron Litherland Said:

all of the above answers.
you can also pull the plug (leave it out ) and squirt a little light weight oil into the cylinder, then pull the cord for the mower lightly to run the piston back and forth in the cylinder, this will help pre-lube your rings they may have become set in place. then replace spark plug, the oil will burnt off with start up

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