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Saito to Magnum - 10/15/2012 2:02 AM   
d_bodary


 

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From: trenton, MI, USA
Status: offline 		I have a Saito 91 installed in a plane. I am going to replace it with a Magnum 91 4-stroke.

The reason the Saito is just plain tired and i already have a NIB Magnum. I am running a slimline 4007 muffler on the Saito. The thread on the Saito is different from the Magnum.
1 Does anyone know of a adapter that will thread into the Magnum so i can still use the same muffler?
2 Does anyone know if the YS 120 thread is the same so i can use a slimline muffler from that?

Thanks


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RE: Saito to Magnum - 10/15/2012 3:22 AM   
Campgems


 

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Status: offline 		I don't know the exact Satio treads off the top of my head, but they are ususally standard metric threads.  I had no trouble finding a tap to match the 120-150-180 exhaust size. 14 x 1 if I remember corectly.   The O.S. engines and therfore the Magnums have special threads.  I was not able to find a matching tap for them.  I'm not sure about the Y.S engines.  I've never owned one of them. 

The master of stripped threads, Clarence Lee would be the first place I would look to to make an adaptrer to mate the two thread forms.  It may be pricely though. I'm sure it isn't a stock item.

Good luck and let us know what you end up with.

Don 

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RE: Saito to Magnum - 10/15/2012 4:22 AM   
SrTelemaster150



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From: Brasher Falls, NY, USA
Status: offline 		FA91S mufler thread is 12 X 1.

FA65 through FA100 all use 12 X 1 thread.

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RE: Saito to Magnum - 10/15/2012 12:23 PM   
Old Fart


 

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Status: offline 		Nothing wrong with the magnum engines i've seen run,good value for money.

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RE: Saito to Magnum - 10/15/2012 10:07 PM   
Campgems


 

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That is true.  I have one of the Mag 91's and it has outlasted two 4*60's. and is still running strong.   

D_bodary, you could probably get a Slimline muffler for an OS 91 four stroke for less than the adaptor will cost.  I Have one on one of my Mag 91's

That is if this is the setup you are looking for.

Don



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RE: Saito to Magnum - 10/18/2012 6:29 PM   
d_bodary


 

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Status: offline 		yes that is the set up i am looking for. I e-mailed slimline and they said they will send me one. As of right now i do not know the cost.

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