RCU Forums - OS 91 FX Muffler

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danijelc

06-08-2008 12:20 PM

OS 91 FX Muffler

Halo,

may I install muffler E-4010 insteade of E-4020 on OS 91FX?E-4020 is too big for my modell and I have an old
muffler from OS 60FP.
Thanx
Danijel

Bax	06-09-2008 10:04 AM

RE: OS 91 FX Muffler

The .61-size muffler won't have enough flow-through to enable your engine to breathe. Likely, it will overheat with a .61-size muffler.

danijelc

06-12-2008 08:46 AM

RE: OS 91 FX Muffler

Thanx!
Danijel

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