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
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Tags: gas tank, Lawn, Lawn Mower, Mower, Propane, propane fuel, Tecumseh TVS-, tvs 100
25 Responses to “Propane Lawn Mower”
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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…
so do idiots
I was just suggesting, that how all the motors I work on are set up (street bikes, motocross)
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.
I do believe its the exhaust valve. Correct me if Im wrong, but thats how all *high performance* motors work.
Real men mow barefoot.
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..
Actually once the engine gets up to rpm the compression release stops because of centrifugal force.
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.
what!! thats kick ass im going to have to try that now
ok sweet vid 5*. i am thinking of making one and about how long would a tank of that size last?
if this back fired couldent there potentialy be a problem or is the gas to air mixture in the pipes to gassy (couldent think of another way to put it) for it to explode??
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.
what, to put a hose from a bottle to the carby which probly took 5 min
fussy wtf r u sayin they are run well all teh time even if u neglect them not to mention if sumthing breaks u can take it apart fast and easly without special tools unlike a brigs
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)
I hate tecumsehs there soo fussey compared to briggs and startton
man you have a lot of time on your hands
if fuel efficiency is what you are looking for. the most efficient way to run propane is with a demand regulator. this will keep the mixture perfect regardless of any sudden load changes
Of course! That’s elegant
(Wish I had thought of that!)
i found for variable load conditions it works well to run rich with no load and then when you put a load on it it will lean out, but this worked very well for me as long as the load was not extreme. as the engine starts to loose speed, the throttle opens to let more air in. if the engine continues to loose speed because of a lean condition, the engine will richen up again due to less air being drawn in because of the lower speed of the engine.
For fixed-speed applications, you can go by sound as well as feel the exhaust temperature. If the mix is off, the exhaust will get louder and hotter. Very hot exhaust indicates that some of the combustion is happening outside the cylinder. Happy tuning!
Thanks for posting this video! I ran across it searching for propane conversion stuff. I have a crappy sears chipper with a Tecumseh engine. The carb died and started dumping fuel all over.
Tried to fix the carb. Decided to switch to propane. I had a spare automotive propane regulator, but the engine is too small. Tried a low pressure feed with a simple fuel valve to adjust the mix — Works great! Thanks again!
are u retarded do u know how flamable propane is if there is any spark u will blow up
Krankiev is an ignoramus with no manners. He thinks abuse is the way to discuss things. Also, he clearly knows nothing about the way fuel air mixture actually works. I’m not going to advise him where he is wrong, but anyone who is an engineer like me will be laughing his head off at the monkey’s errors. Carry on there Krankiev, give us all a laugh at your ignorance of the effects of burning fuel at less than optimum fuel air mixtures. We need more laughs – so please, do go on.