Flymo repair manual

SOURCE: My wiper sniper pull cord is broken, how do u

Hi vanzedo, I will try to help you out. Because you don't specify the brand and model I will try to give you the Weed Eater brand that is manufactured by Poulan because it is the best known in my area and I hope it is well known in your area, but it is pretty well the same procedure for other brands.
To disassemble starter, detach starter housing from engine. Remove rope handle and allow rope to wind into starter. Unscrew pulley retainer or pulley retainer screw and remove rope pulley. Wear appropriate safety eye wear and gloves before detaching rewind spring from housing as spring may uncoil uncontrolled. Try to prevent spring from unwinding if possible, I use a flat piece of metal stiff enough not to bend, about 1" wide or less and try to put it between the spring and pulley, if I have the room to do it and prevent spring from uncoiling as it is quite a job to put it back in. (good luck with that one).
To assemble starter, lubricate center post of housing and spring side with light grease. Install rewind spring so coil windings are counterclockwise from outer end. Install proper size and length of rope. Assemble starter while passing rope through housing rope outlet and attach rope handle to rope. To place tension on starter rope, pull rope out of housing. Engage rope in notch on pulley and turn pulley counterclockwise to place tension on rewind spring. Hold pulley and disengage rope from pulley notch. Release pulley and allow rope to wind on pulley. Check starter operation. Rope handle should be held against housing by spring tension, but it must be possible to rotate pulley at least an additional 1/4 turn when rope is pulled out fully.
I hope this is helpful to you even if a little bit. Regards and good luck. Denis.