Ribbon Delete? Worth it?

[HangOutdoors]

What is everyone's thought on doing this on a 2020 AR210? Is it even worth the trouble?

 

[WildCatFan54]

I've done it on both my current and previous twin engine Yamaha boats. Absolutely !! Very little expense or effort for big benefit. I used the Aqua Sports Ribbon delete rings on both projects.

 

[HangOutdoors]

Looks like you have the 1.8's now, of course I have the smaller engines, was hoping to hear from someone who has done it on the same engine?

 

[LeeFlan7]

From what I understand on the tr1's the process isnt so easy, id be interested to hear if anyone has done it though

 

[slickstick]

What's the original purpose of the ribbon? Looks like some sort of screen/filter to keep out debris maybe. Any negatives or risks?

I am covered under the YES warranty for a couple years, so hesitant to do anything that could void the warranty either way.

 

[ScottS]

What's the original purpose of the ribbon? Looks like some sort of screen/filter to keep out debris maybe. Any negatives or risks?

I am covered under the YES warranty for a couple years, so hesitant to do anything that could void the warranty either way.

It is a spark arrestor to prevent a backfire from reaching the intake side of the manifold and coming into contact with the fresh air and fuel prior to the cylinders. See link below:

Boat Backfire Flame Arrestor: Definition | BOATERexam.com®

Backfire flame arrestors have been required on motorboats with inboard engines since 1940. Learn more about what they do, as well as how to inspect one.

www.boaterexam.com

.

 

[slickstick]

It is a spark arrestor to prevent a backfire from reaching the intake side of the manifold and coming into contact with the fresh air and fuel prior to the cylinders. See link below:

Boat Backfire Flame Arrestor: Definition | BOATERexam.com®

Backfire flame arrestors have been required on motorboats with inboard engines since 1940. Learn more about what they do, as well as how to inspect one.

www.boaterexam.com

.

Ah I do remember reading about that requirement in the boat safety course.

Is there a reason many seem to have deemed this as non-essential? I am guessing this may have been debated in the past.

 

[ScottS]

Ah I do remember reading about that requirement in the boat safety course.

Is there a reason many seem to have deemed this as non-essential? I am guessing this may have been debated in the past.

Because on modern fuel injected engines the probability of this happening is very slim. That being said, some people (I will do this if I delete the ribbon this winter) replace the entire air box and filter when they do the ribbon delete. They replace the air box and filter with a USCG rated air filter that is designed to act as a spark arrestor. That way you get the great airflow without the added amount of minimal risk or being out of coast guard compliance.

 

[slickstick]

Because on modern fuel injected engines the probability of this happening is very slim. That being said, some people (I will do this if I delete the ribbon this winter) replace the entire air box and filter when they do the ribbon delete. They replace the air box and filter with a USCG rated air filter that is designed to act as a spark arrestor. That way you get the great airflow without the added amount of minimal risk or being out of coast guard compliance.

Gotcha... Yea I thought that requirement was just for carburetor engines. Either way, replacing the filter with the arrestor included sounds like a no brainier when removing the original, as long as it doesn't just move the bottleneck.