Yes. You need to remove the two bolts that hold on tbe muffler. Its located behind. Needs to bd cleaned once a year.
All two stroke and 4mix engines have spark arrestors unless the customer removes them
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.
SOURCE: Stihl weedeater starts but won't run at high speed
This sounds like a timing problem.
It is too far retarded, and needs advancing a couple of thou.
There you go:)
SOURCE: How to get the head
There is a hole beside the angle gearbox, stick an awl or small screwdriver into it & turn the head until it 'locks'. Then rotate the head clockwise until it comes off.
SOURCE: can't start new stihl weedeater fs 45
The Stihl FS45 has a particular way of getting started as do all the stihl products. We sell Stihl equipment in our store and service and repair them also. The normal starting procedure is to:
Be sure the switch is turned to the ON position which is the negitive sign (-). The (O) is the off position.
Press the primer bulb 3 times.
Move the choke lever to on.
Pull the starter cord three times only. If the engine fires, turn the choke to the off position and pull till it starts.
If the engine did not try to start during the first three pulls with the choke on, you must turn the choke off and pull till it starts.
Remember:Pulling more than three times with the choke switch on will flood the carburator on every stihl product thats on the market.
However, if the units still refuses to start, being its new and still under warrenty, return it to the repair shop that services Stihl products and they will repair it according to warrenty. All parts and labor should be honored at no cost to you. Please provide your receipt and serial number located on a silver tag located on the unit or the mechanic will get it off the unit when he works on it. Either way, it will most likely have to have a new carburator put on it. I hope this helps. Please comment back if this was helpful. Thanks; George
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