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660 dual port exhaust...any good?


leswold
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As the title. The saw has done no more than 3 hrs from new but sometimes bogs down. Just wondered if this should be our first move. How about replacing the gauze for something more free breathing?

 

Hi LES IVE A Stihl daul port muff off F R JONES next will be ported by Steve on here thanks then it will out power a 661 thanks my one was a year old with say 10)15 hrs if yours is only done 3 years your better off with doing more hrs then fit is it still warranty thanks Jon

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If the saw is lacking in power then it really isn't a case of adding tuning parts. The first thing to do is to ensure the saw is working well before tuning work is done.

 

What I am saying is the tuning should give power BEYOND normal power and NO make up for a poor running saw.

 

3 hrs old - try handing it back to the dealer, if out of warranty, check the fuel system - possible sawdust in the internal gauze filter. It is possible the piston has nipped up or perhaps the carb needs a tune up.

 

3hrs isn't long, it may just need time to bed down a bit before top power is made.

 

Dual port - nice way to go but get the saw working right first....that is unless your expectations of the saw are too high.

 

Oh - I have never seen a standard exhaust with a spark arrestor???

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