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Replacing the fuel vent hose on a Stihl chain saw

Had to replace the fuel vent hose on my Stihl 029 super that somehow my son lost. I hooked up the tank end and can't figure out where the opposite end goes. The shop wants a minimum charge of 75.00 to show me. I hate getting ripped off. Can you help please? Thanks

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If it's the clear vent hose that connects to the tank on the left side, that's it. There is a brass plug inside the hose that meters outside air in the tank to regulate the pressure. The hose connects to the tank nipple, done.

Posted on Oct 17, 2011

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I'd try to contact them. Stihl IPLs are proprietary (not on-line) they may be willing to provide you one. it will probably have the detail needed to answer your question.
Stihl USA
Do you have more than one Stihl dealer close? Sounds like this one doesn't need your business!!!
If all else fails someone with your model saw will probably help you here: Please do a dearch your question may have been asked and answered. Chainsaw thread (free to join)

Posted on Nov 19, 2009


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Posted on Jan 02, 2017

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Were does the small vent tube out the top of the gas tank go on a stihl 029 farm boss. mine broke off flush with the nipple and is leaking gas badly.

This is very important that the connections are correct. The fuel is pulled through the carburetor to purge all the air before starting. Air will keep the fuel pump from refilling the carburetor when attempting to run.

A filter is attached to the end of the fuel tube located in the tank. This hose is the fuel pickup and passes through a tight hole in the tank. The other tube is the return also from the carburetor and is open on the end returning inside the tank also fitting through a tight hole in the tank.

It is easy to reverse these tubes. If one has cracked it is likely all need to be replaced. Take pictures and take notes before starting.

Reversing the hoses allows for unfiltered fuel to fill the carburetor with the result of plugging the jets.


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