Lawnmower Repair

Luke “Funkenet” Hosfield /

So I was mowing my yard yesterday. I hadn't even been going for 2 minutes when I heard a big metallic clunk, and the mower died immediately. Upon further investigation, I discovered that I ran over a tomato cage that was hidden in the tall grass.

After removing what was left of the tomato cage, I went to start it up and it wouldn't fire up. I waited 5 minutes, primed the carb and tried again. After pulling the pull start madly for a minute or so still nothing. I removed the plug, checked for spark, sprayed some started fluid up in there. Still no go.

So I went off to the internets to research this and came across a trouble shooting guide for that said basically when you go from high RPMs to 0 RPMS really fast it is bad for the mower. Either the crank to blade adapter key sheared or the flywheel key sheared.

I looked at the blade first, there was no extra play in the blade to the crank so I knew that was good. I tried to look at the flywheel but it was under a cover and a pull starter. I removed them and got to the flywheel. I couldn't tell without taking the flywheel off. I ended up using a E-50 clutch puller to pull the flywheel. Good news the key was good!

Not knowing where to go from here I reassembled everything and gave her a tug on the ol pull start and she started right up!

I doubt taking the flywheel off then on again fixed anything. So what fixed it? Was the engine just flooded? (edited)

e50pul.JPG

Re: Lawnmower Repair

Mike McScoutington /

Did you fiddle with the wires at all? My mom hit a brick with her old mower and it "was garbage" so she gave it to me. I fiddled with the wires and found a loose ground (likely from the jerk applied with the motor went from spinny to not spinny) and it fired right up.

Re: Lawnmower Repair

When you primed the carb on attempted restart you flooded it.

Re: Lawnmower Repair

> Don Ohio Wrote:

> -------------------------------------------------------

> When you primed the carb on attempted restart you flooded it.

This is what I would say....

Ive worked on several of these over the years.

Some flimsy wire will not sheer a flywheel key.

A steel post, pipe, large rock or chunk of concrete WILL.

Re: Lawnmower Repair

Luke “Funkenet” Hosfield /

> Don Ohio Wrote:

> -------------------------------------------------------

> When you primed the carb on attempted restart you flooded it.

I think it was flooded too but I also tried to start it before I primed the carb again.

Re: Lawnmower Repair

It's quite simple really:

We all know to check for spark, fuel, compression (often in that order)

But garden machinery is all totally different!

It requires the following FOUR ingredients;

1) a spark of which Van De Graaff would be proud

2) fuel so volatile it needs to be stored in a cryogenic vessel

3) Compression so high it requires a ministry of defence licence

4) MAGIC PIXIE DUST, APPLIED BY ELVES!

There is absolutely NO other explanation!

I've had many such engines with SFC that just refuse to start!

Re: Lawnmower Repair

If you run over a small stump or anything that made it stall ...that's when you check the soft flywheel keyway...

Re: Lawnmower Repair

Let some of that "AIR" blow you down to the doctors office to get a check-up from the neck-up....

Re: Lawnmower Repair

He "don't think" .

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account