Walbro Carbs. - RCCanada - Canada Radio Controlled Hobby Forum
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Old 02-04-2011, 08:06 PM   #1
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Unhappy Walbro Carbs.

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When storing your engine for a long period. Is there a fuel treatment
available to run thru your engine before shut down? To protect the
fuel pump & float diaphragms from hardening? Or, becoming stretched out
or too soft? At the beginning of each flying season, I have to get a
carb kit and replace the diaphragms or is this normal?

Is it a good practice to run the carb dry after every flying session?
Or, leave it wet?

Thanks, Guy
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Old 02-04-2011, 08:12 PM   #2
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Re: Walbro Carbs.

I leave mine wet, put in a fuel stabilizer in the last gerry can of fuel I am going to use before the end of the season. Seems to work. I don't leave the fuel in the tank though, I pump it out. Maybe I should look at leaving some in there as well, maybe the fuel tubing inside the tank will stay more flexible longer.

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Old 02-04-2011, 09:06 PM   #3
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Re: Walbro Carbs.

Yes Guy,

Try and keep it a bit wet during storage. Most problem is it dries out and shrinks or cracks.
It will not stretch. The fuel stabilizer is a good idea like Anthony states , you can get from any motorcycle or lawnmower shop.
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Old 02-04-2011, 09:41 PM   #4
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Re: Walbro Carbs.

I store my gassers in my cargo trailer through the winter. I do not run them dry last run of the fall. I also try and start them all up early after the newyear weather permitting. Which is exactly what I was planning on doing this week-end now the weather has warmed up in Alberta. Only 3 1/2 months sitting in the dark, and cold.
I also try to cycle all my batteries, battery management starts about the time the Feb club meeting comes around. Sure nice to know how well the equipment wintered, and if any forseeable trouble can be averted.
Hope this helps.
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Old 02-05-2011, 05:22 AM   #5
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Re: Walbro Carbs.


If I may add to the above .

Stabilizer doesn,t hurt , thats for sure . The oil/gas mixture , keeps everything nice and moist inside the carb . If I would do anything more , it would be to add a few drops of oil into the cylinder . But again , this is depending on a few facters , mostly , "where it is stored " . The worst conditions are very hot and humid areas .


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Old 02-05-2011, 03:04 PM   #6
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Re: Walbro Carbs.

To all of you;
Many thanks for your advice. Will put them to good use.
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