20 Most Recent Homelite Mighty Lite Lawn Trimmer Questions & Answers

Make sure you are turning the nut to the right to loosen, if you are already doing that but cannot hold the line head still to loosen the nut some feature a hole to insert a screwdriver or pin (supplied with the trimmer) or if yours does not have that: use a nylon strap or even a leather belt to wrap around the head, and then clamp the loose end in a vise or quick clamps and it will hold it in place well enough to loosen the bolt.

Bulb or fuel line could have a crack or a clog in fuel line/filter or carburetor. Here's a video on how to change the bulb and fuel lines and another video on how to clean/rebuild the carburetor. Homelite Tune Up Homelite weed eater gas trimmer will not run how to rebuild weedeater...

The timinmg is preset by the permanent keyed slot built into the inside of the flywheel where it mates with the crankshaft. If the key was broken off, you would get No spark because of the nature of the magneto ignition. Your compression is actually pretty low for a 2 stroke. It should run higher like around 90+. Try this. With plug removed, cover plug hole with thumb and give the pull start a real strong pull. It should push your thumb off of the hole. If it doesn't the compression is too low for the engine to run. Scored piston walls, or cylinder walls could be the problem. Again 60PSI is really low. I would remove the jug and check for piston scoring and cylinder scoring. The engine can be easily rebuilt (but not real cost effective).

Reverse blow carb. Cleaner through the filter blow in same direction with compressed air and should be good for many more years that is if you clean tank completely with carb. Cleaner and compressed air and check all fuel sources. If fuel is a bit dirty place paper napkin or rag in funnel and use as filter when adding fuel.

I have some parts manuals.

Need to know model number.

Had same problem with my reconditioned unit. After a few hours engine would run only with 1/2 choke and full throttle. Like most 2 cycle engines, the unit was starving for gas.

Solution: Adjust both carburetor screws. These screws are located directly below the idle adjustment screw. There are 2 of them side-by-side and they are approx. 3/16 diameter with an oval shaped cast metal raised restricter. Simply remove the plastic round air filter by removing the small nut. Then, using a Dremel tool while wearing safety glasses, cut a slot in the face of each screw. Cutting through the raised cast metal surrounding the screws will not damage the unit. Then using a small flat blade screwdriver, screw each screw clockwise till it stops then back-out each screw 2 turns. Factory setting is 1 - 1/2 turn each. However, the unit over time runs too lean with the factory setting.

Then start unit, let warm up with 1/2 choke, then turn to run position and make any final adjustments.

Making this adjustment, I am once agin able to trim my yard in the idle position. Runs Great !!!! Hope this helps.

The 6.5 powerful motor and powerdrive transmission allows the maximum performance. It has a 13 inches cut path that cuts the toughest weed and gives your lawn the perfect tidiness.

Hello! Trimmer Line Installation; Place Trimmer On Workbench Or Floor, Grasp Trimmer Housing With Left Hand Turn Middle Nut With Right Hand,Left To Right Removing Center Peace,In Some Models Suchas Electric Models The Center Piece Just Snaps In.Remove Nut Remove Line&Spool,Bottom Caseing.If Spool&Inner Housing Is Dirty Cleam With Soap&Water.Pay Attention How Line Is Inserted Through Spool,You Will Need To Reinstall Same Way.You Will Need About Twenty Feet Of # 60 Or 65 Line.Buy Line At Any Home Improvement Center. Most Trimmers Are Double Lined.Find Middle Of Line,Thread Through Holes That Old Line Came Out Of.Wind Line Accordingly To Arrows On Spool Edge. Leave Enough Line TO Insert In Groves On Edge Of Spool.Reinstall Spool Put New Line Through Holes In Outer Housing Pull Line Until Line Is Free.reinstall The Rest Of Parts In Reverse.Hope This Helps,any comments welcome,thank you, ii

try running on full choke until it warms up.

will have to have the carby diaphragms replaced as the float diaphragm and the pump diaphragm are faulty

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

Go to homelite.com, ordering parts, locating parts, select Homelite, select string trimmer, then find your ut number which will be your model no.

Go to youtube.com and look at Michael McGill's video on replacing homelite stringtrimmer string, this is possibly your type.

You can try: http://www.manualsonline.com/
Of course their user manual downloads are free.

good that you fixed the problem but to be fair , you would not have mentioned that it sat for a long time before you went to use it

sounds like the card needs to be cleaned thoroughly.

In the USA it's often called a stone. It's basically a fuelfilter.

My UT21546 has 2 springs, the regular recoil one and a what I'll call a anti kickback one. the top of the anti kickback spring kept coming unsecured and finally I just deleated it alltogther and screwed the 2 plates tightly togehter and the near new unit works better than new now.

may need a tune up--check air filter change if necessary,check and clean he exhaust screen.plug if fouled --fuel mixture --carb may need cleaning or rebuilding