Why does my homelite 26cs trimmer have gas coming out of muffler when i try to pull start?

Check for fuel to carb. Check for ignition by removing plug and laying metal case against cylinder head, pull starter and watch for spark. Check carb. Air filter and check exhaust port on muffler for dirt dobbers and carbon buildup. While plug is removed hold finger over spark plug port and see that you have a good bit of compression. If this does not help remove and replace or rebuild carb.

Try going to ebay and finding a carb for the model, some are as cheap as $12.

check air filter if clean check spark arresterin muffler usually a screen under plate where exhaust comes out also tube shaped can be pulled out with pliers,if clogged canclean with wire wheel also can remove muffler tosee if exhaust port ic clogged with carbon if all is ok problem maybe with carb hope this helps

Check that the muffler is not blocked. Your symptoms are typical of this condition.

Once you have the string wound onto the spool, place the spool onto the shaft and pull the strings out of the slots so that the string feeds through the holes without going through the slots. Good luck...Lee

carb setting is too lean,need special tool to open,go to mower shop.This model also has problems with starter mechanism,I hope you have a warranty

remove the muffler,disassemble it,you will find a spark arrester screen in it.it is either clogged up with carbon or partially clogged,clean all carbon off,reassemble and try again

sounds to me like dirt in gas tank dirty or plugged filter screen on fuel line inside gas tank or plugged pinched or obstucted fuel line . also check for the following pin hole in primer bulb bad spark plug dirty or rusty coil or flywheel magnet.or simply dirty or missadjusted carb if i can be of further assistance let me know i would start with the fuel hoses and make sure they are in good shape first ...do the easiest and cheapest things first good luck hope this gets you up and running good mrdmburns@cableone,net

I had this same problem, would run a couple of seconds, stop, and you couldn't start it again.
Had good gas/oil mix 50:1 and 25cc Homelite. Had replaced the fuel filter, gas, spark plug, and took carb apart and cleaned with carb cleaner and primer bulb worked fine. None of that fixed it. What did? Take the muffler off and see if it will start and run with the muffler off. If it does, chances are the muffler is clogged. Also check the exhaust ports and clean them out if plugged with black oil carbon residue.
My muffler was clogged up, took it off, cleaned out the exhaust ports, there was some oil that was in the muffler(oil that didn't burn during combustion). It now starts and runs like a champ on first or second pull.