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post #1 of 24 Old 03-07-2019, 07:04 PM Thread Starter
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cheap propane conversion

well the discussion about propane snowblower definitely got me interested but the price tag i was seeing associated with some kits were stupid expensive until i looked around and noticed a lot cheaper cheaper kit. has anyone tried one? i ordered 1 last week and it showed up today which really surprised me since it came all the way from china. there seems like a few video of people running this style carb on generators and really not much of a difference between generators and snowblowers. i am hoping to try getting the carb on as soon as possible but the snowblower i want to put the carb on is currently glued to the ground with ice and buried under snow since i haven't used it this season since it is a pain to start since i broke the choke on it. the plug also likes to foul up or something ever since i changed the plug. i don't see how a different plug causes it to change how the engine runs but it did which is why i am hoping propane may help fix this issue. as far as carb quality goes looks like anything anything you would order from china for cheap. some scuffs and dings on mating surfaces but nothing that should stop it from working. since i will be running this one a small 20" machine i was thinking about probably just powering it with little tanks since a 20lb tank might be a bit much to toss on a small machine. i am open to any tips or advise people maybe have.
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post #2 of 24 Old 03-07-2019, 08:29 PM
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You may need a larger tank in order to generate sufficient gas at very low temps. Will be interesting to see the outcome!

Propane vapor pressure at 70F = 127 and at 0F is only 31. Also see the Propane Cold Weather BTU chart below...
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Last edited by tabora; 03-08-2019 at 11:14 AM.
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post #3 of 24 Old 03-07-2019, 08:41 PM Thread Starter
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i was thinking i will probably need take the tanks in to keep them warm when not in use since they will be so small but really wanting to keep the blower light weight and a 20lb tank will not help its weight. i would really like to get this machine back up and running as my main machine to snow blow other peoples driveways since it was so lite and i never needed my ramps to load or unload it but i guess we will see what happens.

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post #4 of 24 Old 03-08-2019, 10:09 AM
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You may be able to find a 5# or 11# propane tank we have them around here. I have both a 5 and 11 they are common for hunters and ice fishing shacks, you just need to take them to have filled at a propane dealer.
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post #5 of 24 Old 03-08-2019, 11:28 AM
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Is that a dual fuel carb?
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post #6 of 24 Old 03-08-2019, 12:12 PM Thread Starter
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ya it it one of them dual fuel carbs.
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Originally Posted by Lottstodo View Post
You may be able to find a 5# or 11# propane tank we have them around here. I have both a 5 and 11 they are common for hunters and ice fishing shacks, you just need to take them to have filled at a propane dealer.
i will take a look. if i could find a 5lb tank i think i could live with that but i don't think i have ever seen one.

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post #7 of 24 Old 03-08-2019, 12:51 PM
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I have 4 generators that run on dual fuel.2 of them I converted to dual fuel I never converted my snowblower to propane because propane has a lower BTU rating than Gasoline.And Propane does not like cold weather.If your snowblower does not run well on gas than it will not run on Propane I have been dealing with propane powered equipment for about 8 years.My first generator was a single fuel Generac generator.They only sold them for about 2 years maybe 3.People did not do there homework on propane so they kept sending them back instead of doing some reading up on Propane.I would still have it .But the older I got I needed electric start and could not put one on it.In the winter time when the Temp goes below 40 I use 2 tanks to generate enough gas for power equipment.A 20 LB propane tank gets me about 25% less run time than 5 Gallons of Gas in warm weather.The only reason why I converted to propane was that i got tired of storing 20 gallons of gas and recycling it into my Vehicles.So now I have 8 cylinders that I store in my shed and never have to recycle.If you are going to convert.Make sure you read up on it.Things like a new plug,Changing the gap on the plug.Go to US carburation .They have a lot of info to get you going. Take youtube with a grain of salt.I don't know how some of them people did not blow themselves to **** with some of there contraptions.If you need any help let me know.Tony PsS Make sure that the kit has a Regulator that shuts off the propane when the engine dies.Propane gas works by Vacuum and unlike gas it will keep flowing.when engine shuts down.

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post #8 of 24 Old 03-08-2019, 01:34 PM Thread Starter
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the snowblower use to run real good until i changed the spark plug. now it will run real good for a few minutes and then start running rougher till it stop running. pull plug clean it off toss it back in and it does the same things over. it ran perfect for 3 years previous. since i broke the choke and needed to replace the carb anyways figure minus well try the one with propane. there was someone else who converted their machine to propane and seemed pretty happy with it. i believe the regulator on the carb that is vacuum activated and you also need a regulator like on a BBQ to keep the pressure low enough so it doesn't force its way into the engine.

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post #9 of 24 Old 03-08-2019, 03:13 PM
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Just curious, is it the factory suggested plug? There had been a mention of a plug fouling after it was replaced. If, perhaps, the new plug was a different (wrong) heat range, perhaps that could have an impact on fouling, or other misbehavior. Of course, also assuming the gap is correct.

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post #10 of 24 Old 03-08-2019, 04:16 PM Thread Starter
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it is what the system said was the NTK version of the plug. the gap was the same on the the new plugs as the old. think it was .035. i think i even tried some of my old trucks spark plugs in it since i had lots and they were just fine when in my truck. it would still do the same thing. after digging it out today i know there is most likely going to be fuel system issues. looks like there is probably some rust starting to develop in the tank and it only ran for a short amount of time before not wanting to stay going on its own. i guess at least it ran which was the important thing. also looked at possibly swapping the 208cc on it. just need to get the pulley spaces cut right and i can drop the engine on.

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