Propane Lawn Mower

Quick and simple propane fueled lawn mower setup and run video. The lawn mower featured is a 1989 Toro model 20588 with a Tecumseh TVS-100 engine.

I changed the oil earlier and had the propane fuel setup as the fuel line between the gas tank and the carburetor had dry-rotted and cracked. Engine seems to run very good on propane

Category:

Howto & Style

Tags:

• Propane
• Tecumseh
• Lawnmower
• Engine
• Alternative
• Fuels
• LPG
• Toro
• 20588

[lawl802]

I hate tecumsehs there soo fussey compared to briggs and startton

[yuandrew]

Never really had a problem with mine other than varnished gasoline in the carburetor bowl from sitting so many years (which was easy to take apart and clean out)

I had a lot more trouble getting a Briggs and Stratton to run on propane (kept backfiring out of the intake for some reason)

[Tonyv1951]

Interesting for you to do it but it will almost certainly cost you more to run, and the mixture has a large chance of being too lean or too rich. People who say ot will be clean running are wrong. Engines thta are running with poor mixture control like this are not clean at all.

Safety points:

Don't run internal combustion engines indoors unless you want to be found dead in the garage.

Leaking propane causes explosions. make sure you shit that thing off when you've finished playing with it.

[yuandrew]

The garage door was opened in this video so the exhaust will go outside. I also unhook the propane bottle when I'm not mowing the lawn.

The throttle still works. As for lean/rich adjustment; I have to listen to the engine to hear how it is running and adjust the fuel mixture using the blowtorch valve depending on load and throttle settings. I'm in the process of ordering a "demand" regulator so it should later control the fuel mixture automatically.

[krankiev]

Hey douchebag, propane engines do not make the harmful gases that gasoline does. There isn't a whole lot to the fuel mixture, there is an extremely small range where the fuel mix can be off because it will run like crap. Also propane engines are MUCH cleaner than gasoline because they burn all of the fuel and also emit less harmful gases. and the way you kill the engine is to turn off the gas, so it can't leak while it's off. So, almost everything you said was wrong so you can go fuck yourself.

[chrisnotap]

Dude, sandals and lawnmowers don't mix. It's great that you have done this but I had to search for my neighbours toe years ago as he was on the way to the hospital with a severed toe while cutting the lawn in sandals. Good luck.

[Ericlepiqable]

what a retar

[fishingfool99]

Duct taped propane bottle? You taped the damn hose to the valve. Your a frickin moron. I'm wondering if your still alive to read this...

[marybell1966]

so do idiots

[shadooky]

I was just suggesting, that how all the motors I work on are set up (street bikes, motocross)

[krankiev]

I didn't pay 100% attention when i just recently had one apart, but I've been told it's the intake valve, and it makes sense because lots of old briggs motors make a weird sound out the carb.

Tecumseh uses the exhaust valve, but in a different manner.

[shadooky]

I do believe its the exhaust valve. Correct me if Im wrong, but thats how all *high performance* motors work.

[dgbsco]

Real men mow barefoot.

[krankiev]

that's how Tecumseh's works.

On briggs & stratton it's always there, but at normal operating speed it's too quick to make any difference.

that's straight out of a B&S repair manual..

[WreckRman2]

Actually once the engine gets up to rpm the compression release stops because of centrifugal force.

[krankiev]

That's Briggs & Stratton's Easy Spin Starting, the intake valve opens for a small moment toward the end of the compression stroke for easier starting. At high speeds it's so small it doesn't matter. My Tecumseh had the same issue with the decompression so I disabled it.