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purpose of the exhaust routing 195

blacksapphirez

Jetboaters Captain
Messages
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Location
Charleston, SC
Boat Make
Yamaha
Year
2020
Boat Model
SX195
Boat Length
19
what is the purpose of the round about lengthy exhaust hose?

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what is the purpose of the round about lengthy exhaust hose?

View attachment 222857
My guess would be height restriction under the access hatch not allowing to directly come up and over so it breathes better? Or, Yamaha and the supplier are in bed with one another, charge by the inch and pass the cost to the end user..??
 
Also raising the hoses higher would impact the exhause cooling draining properly and potentially building up water into the engine.
 
Last edited:
Also raisning the hoses higher would impact the exhause cooling draining properly and potentially building up water into the engine.
Height is a likely cause.

Also resonance length could be an issue. Longer pipes are typically quieter.

Nobody will really know except the Yamaha Engineer that made that decision. @Julian any chance you have a contact there with some insight?
 
Also raisning the hoses higher would impact the exhause cooling draining properly and potentially building up water into the engine.

This is factory....
 
Height is a likely cause.

Also resonance length could be an issue. Longer pipes are typically quieter.

Nobody will really know except the Yamaha Engineer that made that decision. @Julian any chance you have a contact there with some insight?
I'll endeavor to ask them next time we see them.
 
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