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Re: Homelite trimmer Carburettor
Try cleaning out the cab, with a wire from a loaf of bread stip paper from wire and probe all holes for any debris that could possibly cloging a hole. If that don't work then try a rebuild kit still dont work then you might need to bring it to a repair shop to see if you need a new carb.
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1.You have to remove the air filter *** cover.
2.Remove air filter.
3.Remove 2 screws, to remove the rest of air filter ***.
4.Remove the 2 fuel lines with a long nose plier.(Take a photo of
the position of fuel lines or mark fuel lines for reassembly)
5.Unhook the throttle cable. Now to fix the Carburettor
1.Remove the 4 screws on primer bulp side of the carburettor.
2.Open the carburettor and clean with paint brush and clean fuel.
3.Replace diaframe kit(available from your nearest dealer) and reassemble the trimmer.
Check you have a spark, connect a spare plug and hold it to an earth, crank the engine and watch for a spark. If not check your ignition circuit. If a good strong spark proceed: Check fuel supply to carburettor - make sure there are no transit plugs that have not been removed. Easiest way is to disconnect the supply hose - no naked lights!!!! If that\'s OK remove the carburettor float chamber and check that fuel is reaching the carburettor. If the float chamber is dry, check the float valve assembly. There\'s not usually much to small engine carburettors so if the fuels getting to the carb it may be a blocked jet or just very badly adjusted. There is also the possibility that the carb is faulty (yes I know it\'s new but ...!). If fuel and spark is OK then it could be the spark timing - it should be OK unless you\'ve stripped the engine. On some engine\'s it is possible to set the spark 180 degrees out so that it sparks on the exhaust stroke - just to confuse things some engines spark on both exhaust & compression. Good Luck!
Check that the cable which connects the throttle to the carburettor is actuating the throttle butterfly valve in the carburettor. You should be able to see the valve moving if you remove the air filter.
Check there are no kinks in fuel line. Make sure that the air filter isn't blocked. Check the throttle cable is operating the throttle plate in the carburettor ok. Ensure chain isn't too tight. The carburettor should be a tight fit on the air inlet manifold. It's
possible that some of the jets could be blocked in the carburettor. You
can try and clean these with compressed air but ensure you remove any
seals gaskets, springs on the diaphragm pump , primer bulb etc as they
can be damaged by the pressure. If the the choke normally disengages when the throttle trigger is squeezed, check this is working ok.
Hello rick.... Get an aerosol can of starter fluid at your local autoparts store. Also get an assistant. Remove the air filter and start it up. Have your helper squirt some starter fluid into the air intake to keep it running for a couple minutes until the partial blockage in the carburater clears. Joe
Check that the carburettor and fuel lines are clean. If the unit has not been used for a while the gas (petrol) will evaporate leaving the oil behind to choke up the fuel system. Dirty fuel will do the same. When adding fuel use a funnel with gauze filter in it and always empty the fuel tank and then run the motor until it dies when you've finished work.
Sometimes even if the diaphram and gaskets look ok they may not be. If the diaphram is stretched or distorted even a little they wont work properly,same for gaskets and other parts of the carb. sometimes the littlest things can make a big difference. I would try a complete rebuild kit and while everything is out of the carb. spray the carb real good and then lite-ly blow out the carb. with an air hose also if you take a twist tie from bread and take off half of the paper from the wire and carefully probe all holes in carb. that might do the trick for ya. After you put the high and low adjustment needles back in (if your zamacarb. is set up with them) you'll want to set the low needle (after turning all the way in till it just bottoms) at 1 and 1/4 turns out and the high at just about 1and 1/2 turns out, then while running make final adjustments.