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Stihl FS38 Spark Arrestor


Dosydave
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Where is the spark arrestor screen on a Stihl FS38 trimmer and how do I access it? I've removed the muffler but its a sealed unit with no access points other than the the inlet and the exhaust pipe. There must be a spark arrestor screen somewhere but I'm jiggered if I can find it.

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Where is the spark arrestor screen on a Stihl FS38 trimmer and how do I access it? I've removed the muffler but its a sealed unit with no access points other than the the inlet and the exhaust pipe. There must be a spark arrestor screen somewhere but I'm jiggered if I can find it.

 

If it actually has one it'll be located over the exit hole of the exhaust and shud be easy to see.

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Thanks for the responses

 

The muffler on my machine has a fixed non removable exhaust pipe, there is no hex nut. The stihl parts diagram for this model shows 5 variations of muffler all with spark arrestor but none of them are the same as mine.

 

I'm thinking that the muffler on my machine may not have a removable spark arrestor. It gets bogged at high revs and a clogged spark arrestor could have been the cause. I've tried all the obvious things so I will have to go a bit deeper.

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Thanks for the responses

 

The muffler on my machine has a fixed non removable exhaust pipe, there is no hex nut. The stihl parts diagram for this model shows 5 variations of muffler all with spark arrestor but none of them are the same as mine.

 

I'm thinking that the muffler on my machine may not have a removable spark arrestor. It gets bogged at high revs and a clogged spark arrestor could have been the cause. I've tried all the obvious things so I will have to go a bit deeper.

 

If you can't find a way to take it apart then a good quality arasol carb cleaner and a air line will help or a ultrasonic cleaner if you have access to one.

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