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Yamaha YFM225 Loud Exhaust

Wolds Alpacas

By Wolds Alpacas
in Yamaha ATV Forum

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Wolds Alpacas Explorer

Wolds Alpacas

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I have a Yamaha YFM225 which sounds really noisy exhaust wise.  It had no baffle so I bought and installed that but it seemed to make no difference.  There are no leaks from the manifold or exhaust but the damm thing just sounds  so loud !

quadmaniac Mentor

quadmaniac

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12 hours ago, Wolds Alpacas said:

I have a Yamaha YFM225 which sounds really noisy exhaust wise.  It had no baffle so I bought and installed that but it seemed to make no difference.  There are no leaks from the manifold or exhaust but the damm thing just sounds  so loud !

If there are no leaks, its got to be the muffler. Is that an aftermarket muffler?

Wolds Alpacas Explorer

Wolds Alpacas

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No, this is the stock exhaust.  It did not have the baffle in so that cost about £80! Did not seem to have any affect though.  Still sounds like a bloody tank!  I will have to take it off I think and re-fit when the weather gets warm enough to be outside!  Thanks for your reply.

Wolds Alpacas Explorer

Wolds Alpacas

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So, I replaced the exhaust gasket and it is MUCH better!

I replaced it with a copper one - I think the old is a different compound.

Here is the old one....

(By the way, when I find the problem on anything, I do try to post on forums as I am so fed up with seeing forum posts with a problem but no solution from the original poster!)  - I think it is rude to not show what the solution was as it helps no-one if there is no feedback on an issue!

Moto4 gasket broken.jpg

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