Lawn mower repair Flywheel key replacement

How to replace and when to replace.
If you try to start the mower and it jurkes the pull handle out of your hand. It may be the key has sheared

Category:

Howto & Style

Tags:

• lawn
• mower
• flywheel
• key
• repair

[psychomikeo500]

so, what do you do when the old key is sheared halfway off and has the wheel torqued tight?

[3rflyingcom]

@psychomikeo500

you'll need a wheel puller.

[multikyd01]

@3rflyingcom hey i got a riding mower n something is messed up with the silonid, any way i put a battery in it and it fired then died after a while i looked over n the key was switched off so now it wont start. Do u know if i might have screwed something up? plz respond thanks.:)

[3rflyingcom]

@multikyd01 It was running the whole time with the key off? Or did it stop running when the key was moved to the off position? If its the latter of the two its an easy fix. If its the former then its hard to say..you'll have to test for spark and go from there.

[eveningniteshade]

Does anyone know of a better video which shows more detail. I still don't know what the key is or where it goes. It's a video about replacing a key which doesn't show the key being replaced or old key removed.

I still dont' understand the concept of the key. Doesn't that bolt in the cetnre go all the way down to the blades. Isn't that the shaft, and that/s bolted to the flywheel?

So how do keys help it?

btw is KEY an american term, and the rest of the world would use PIN?

[3rflyingcom]

@eveningniteshade

The Key stops the flywheel (things with fins) from rotating on the shaft that goes through the middle of the flywheel. The large bolt on the top of the shaft holds the flywheel down on the shaft. You can only access the key by removing the flywheel.

If the key is damaged by blade strike (on a rock for example) The flywheel can rotate a few degrees on the shaft and this will change engine timing causing the engine to backfire, not start or yank rope from hands when starting.

[lack53]

Gee i been working on these things for 40 years.. if one of the guys in my shop removed one of these like that I would hang him..

[iTalkApple96]

So it's ok to pressure wash the inside of your motor? lol?

[garrett92895]

then you gotta ZZZZZZZZZZZZZZZ Z ZZZZ ZZZZ Z throttle cable

[jjparrish]

Thank you for your helpful video! You saved me $60.00!

[guitarist8983]

Puller

[guitarist8983]

It's called a flywheel pulled more helpful

[commieplot]

excellent.  thanks!

[JONSEREDdotWS]

@JohnDeere1317 turn the volume up where head phones

[logyscott]

I can't hear you with that wrench going

[multikyd01]

@3rflyingcom it was running with key off then died. any it is a yard machines mower?