I need a parts list for a fs/38 stihl weed trimmer

SOURCE: Stihl FS 110 brush cutter loop trimmer

Check the fuel filter, you are not getting fuel so therefore the spark is not getting anything. You can also take some carb cleaner and clean your carb. This is a common carb issue and it needs either a new filter(recommend) and also some carb cleaner shot through the system

Steve Sweetleaf

• 1212 Answers
• Posted on Jul 25, 2009

SOURCE: How do i replace a rewind spring in a stihl fs 45 weed eater

you have to kake sure u wind it the rite way there should be tension on the spring when it is wound and if let go should return if it does that u have it rite...the little plastic peice must be connected to the hooh on the spring

SOURCE: Fix Coil Start Stihl Weed Trimmer

you dont say what model Stihl, lets assume its FS80/85. the torxs style screw driver is part of the tool kit supplied with the machine and includes spark plug spanner 3/4 AF, remove the four screws to release the starter assembly, the starter also retains the fuel tank, dont lose the oblong rubber insert or the tank will wobble around when assembled. if the rope wont return the end of the rewind spring may have broken off or it maybe that the spring has got so rusty its just hanging up. with the recoil off remove the centre screw (normal anti-clockwise) holding the starter away from your eyes, withdraw the pulley and inspect the spring for damage which normaly occurs at the end that engages with the pulley, if it's broken and you cant get a replacement use a pair of pliers to grip the spring about 3/4 inch from broken end, heat with blowtorch to soften and rebend into a hook to engage with the pulley, dont try to bend without softening, clean off any rust with wire wool and re-install the spring in it's housing working from the outside toward the middle.it's more of a knack than anything else and you could probably do with eleven fingers. having installed the spring make sure the rope is fully un-wound and insert the pulley into the housing turning gently until you feel the spring engage, you will know you've got it right when the pulley attempts to rewind, fit the pulley retaining screw, you will observe a notch in the outer rim of the pulley,make sure that the rope is in the notch and use it (the rope) to wind the spring about five times, check that the whole rope rewinds into the pulley, if you still have some hanging out put more turns on the spring but dont over do it. to check, gently pull on the grip until you come to the end of the rope, thats the important bit, you must come to the end of the rope before you come to the end of the spring otherwise the spring will break again.install the starter assembly by offering up and slowly pulling on the grip until you feel the pulley engage with the starter pawl. good luck.

SOURCE: what is the correct ratio gas to oil for my stihl fs 66 trimmer

Use a quality 2 cycle oil and mix it to the oil manufacturer's recommended ratio. Today it is usually 50:1.
Fuel in the USA contains ethanol; try to use up your mix in a month or less. HTH
Lou

SOURCE: stihl fs 45 ignition problem no spark

Disconnect the small spade terminal wires from the coil itself and test for spark. If you do not have spark replace coil. If you do have spark check those small wires for insulation damage and grounding. If wires are OK check kill switch.
NOTE: DO NOT START MACHINE with small wires unplugged! Only test for spark.