Most common cause of lopeing (revving up and down) is a dirty air filter.
Take it to Sears.
Yes .
clutch for (your model mower) on eBay or other site that sells mower parts
You can attempt to fix it by reading this http://www.lawnmowerman.tv/Troubleshooting.asp Here its basically a homemade manual about lawn mowers and how to fix them. They give you helpful tips and the types of oils,blades that your mower needs.
Lawn mower repairs can be done at any local Sears. Sears offers lawn mower parts and maintence, as well as repair. They offer top quality components that are guaranteed to fix up any lawn mower. Sears will meet your needs with their high quality standards.
Home Depot does have a repair service that repairs lawn mowers. You drop off the mower, they fix it and you pick it up at your convenience.
When a lawn mower will not start by pulling the cord, it probably needs maintenance. Changing the spark plug often will fix the issue.
Helicoil.
Replace the engine...End of story.
yes but is is cost effective? that's your call
The most common cause of surging in lawn mower engines is a dirty air filter. It just needs to be removed and cleaned if it is the foam type, It it is the paper type, it needs to be replaced.
sheared flywheel key. youtube has vids... type in mower cord backfires & you'll see instructions on how to fix it.