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bunkergroup

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Posts: 252
Reply with quote  #1 
Hi all. I have a question regarding the path of the exhaust on my 75,s models, sum,sda. Once the exhaust gases exit the megaphone they travel down the upper and lower inners and exit through the prop. My question is , what path does it take to reach the muffler relief ?. I have looked in the manual however its path is not clear.
bunkergroup

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Posts: 252
Reply with quote  #2 
I have found a picture online of the inside of the upper inner exhaust housing. It shows a separate path approximately 1 inch square leading 3/4 of the way down the inner where it exits the housing allowing relief of back pressure when motor is at idle.
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