I relpaced the fuel lines on my Mccullough Eager ****** leaf blow
Er because of leak then it had trouble starting.I tried making adjustments to the choke with the adjustment screws located on the choke.Now it wont run consistently and dies.Any info on how to adjust properly?
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Re: I relpaced the fuel lines on my Mccullough Eager...
Ok then these are the low and high speed adjusting screws. first make sure the spark plug is clean of buildup or new . what you need to do is first try to get it to idle with the low adj screw. now im not sure which ones which so try one and if it makes no difference during idle then try the other. start it if it dies turn the screw , repeat this until you get the right sound and steady idle.once you figure out the low screw trun it all the way clockwise then turn it counter about 2 turns. then tune the idle from here. you want it to have a steady sounding idle. now the idle sounds good use the high screw to adjust the throttle. give it about half throttle and turn the high screw until it sounds steady here. then go to full throttle and turn high screw until it sounds steady here. now it should sound steady at idle and throttle. and try not to trun the screws more than 1/8 to 1/4 turn at a time,especially the high, you dont want to blow it up. lemme know how it goes
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If equipped with screw limiters you can only adjust slightly using a flat or phillips screwdriver. If not limiter equipped you may need a special driver that only authorized shops are supposed to use. EPA is tightening stuff up on small engine carbs for some odd reason. You might want to try adding some fuel system cleaner and seeing if your blower picks up on the top end without any twiddling.
replace spark plug.if spark plug okay problem could be carburetor or air leak at fuel lines or check primer bulb for crack which cause air leak.any breaks in fuel line or primer bulb cause air leaks fuel system cause carb not get fuel run engine.
If we are talking about a hand held leaf blower. The fuel leaking from the carb is likely caused by a stiff metering diaghram holding the needle open. Rebuild your carb ( I suggest also replacing the fuel lines and primer bulb while you are at it) and double check the lever adjustment.
The cylindrical part on the end of the hose is the fuel filter, the other part sounds like the the insert from the end of the return hose to the tank, if the filter has come away from the pipe dirt will now have entered the carc and will now need cleaning, the insert is to stop the return hose from coming out of the tank, you would have to remove the return hose to re fit this but it is not realy overley importent, if the fuel filter is still connected to the hose, pull it off and replace wiyh a new filter and try again.
Before you spring for a new tank, check that the leak is not coming from around the fuel lines. If the fuel lines are not soft and plyable then they can not seal with the tank and may be the cause of the leak. They are replaceable and if that is the case you can get fixed up for a few dollars in parts.
The hose in the tank with the filter on the free end connects directly to the carburetor input connection.
If the saw is equipped with a primer bulb, the output line from the carburetor connects to the suction side of the primer (once the bulb is collapsed it draws fuel from the tank through the carburetor to refill as it inflates).
The pressure side of the primer returns displaced fuel to the tank as it is depressed.
Take lots of notes and a few digital photographs to help with reassembly. HTH Lou
Does it have a clear primer bulb, and are you using it when starting a cold motor? The primer bulb should be filling up with fuel after you push it in several times. If you are not getting fuel in the primer bulb then there is no fuel supply. One common cause of that, in old leaf blowers, is a broken flexible fuel line going to a weighted fuel filter in the tank. The flexible line allows the fuel pickup (the weighted filter) to remain at the lowest part of the tank when you hold the leaf blower at different angles. Another cause could be a bad adjustment of the float valve, or clogged fuel passages. Did you blow out all the fuel passages when you rebuilt the carb?
Had the similar problem- start with removing the exhaust intake plate 1st--- clogs with super fine dust initially then larger particles... Mine was completely clogged- cleaned er' out now she blows like the wind!