My lawn mower cranks fine and runs fine, however, the wheels will not self-propel, anymore. I'm not sure how old the mower is, as I purchased it used, but it worked properly for the first four or five months that I've had it. Any recommendations?

SOURCE: Honda lawn mower, self propelled mechanism not working

check the mechanism first before changing the gearbox its possible that the cable might jump out from the pulley or the cable is worn out or its possible that the gear on the tire is worn out to if not then that would be the time for you to change the gear box it would be hard to change it if you don't have the right tools to work on it if you know how everything work its not that hard to replace it just make sure were everything goes memorize the parts before disassembling cause that would be you guide to reassemble it...goodluck

Curtis Sewell

• 7482 Answers
• Posted on May 15, 2010

SOURCE: I can crank my murray gas lawn mower 6.5 quantum

Sounds like you will need to clean your carburetor.
Sometimes you can get by with priming it a few times, and letting it
run a few times like that and it will flush the gunk out of the jets,
but most of the time you will need to rebuild the carburetor.
If the mower is over a couple years old, then I also recommend that you
buy and install a new carburetor repair kit, because the diaphragm will
get hard and that will cause it to be hard to crank.
When you clean your carburetor and remove the jet screws, count the
number of turns it takes to seat the jets from their original position.
That way when you go to put the jets back in, you know how many turns
they were in/out.
Please rate me, Thanks
Good Luck, I hope this helped

EugenesDIYDen

• 479 Answers
• Posted on Sep 04, 2010

SOURCE: The self propelled just quit working. The front

Drive cable or drive belt could have broken

SOURCE: Lawn-Boy Insight Series 21-Inch 190cc 650 Series Gas Powered Engine Variable Speed Self-Propelled Lawn Mower: my engine will only stay running for about 3 secon...

Maybe the engine is running with the fuel from the primer bulb (about few seconds), the carburator is not working and need to be removed checked and cleaned, the most common fail is a jet clogged.

SOURCE: Briggs and Stratton Troy Built

It's a gas mower with an electric start (and a battery Vince!?) The movers also lost the charging adaptor with your manual (it plugs into a jack right next to the key switch). You can buy a replacement online or at Sears, etc. for ~$10. Plug it in early in spring for a couple days and it should hold a charge most of the summer.
Cheers.