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RUSS
RUSS, SERVICE TECHNICIAN
Category: Small Engine
Satisfied Customers: 3666
Experience:  28 YEAR SERVICE TECHNICIAN
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have truck apu with kubota 1 cylinder motor. 7 hp. muffler

Resolved Question:

have truck apu with kubota 1 cylinder motor. 7 hp. muffler is very loud! is there a way to quiet down stock set up?
Submitted: 6 years ago.
Category: Small Engine
Expert:  RUSS replied 6 years ago.

HI

this is a problem and the answer is unfortunately no......the engine design (as with all small engines) relies on a certain amount of back pressure. Changing muffler design and or restriction will increase back pressure which then causes overheating and lack of power. sorry

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