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reed valves replasment on tohatsu M140A2

C

costa costa

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hello i m nikos from greece and i have a tohatsu M140A2 1996 mod i have the carburators and reed valves out for cleaning and i m wondering if it is worth it to upgrate to boysen power reeds .? i care more for fuel economy and smouth operation of my engine ...i m sorry for my bad english i hope to understand me and give me your opinion thank you .
 
Stainless reeds are very good and reliable.-----Composite reeds may not last as long and can fail.----Have a 200 HP motor that I picked up as scrap , composite reed valve was collapsed and of course difficult to trouble shoot.-----Lack of performance made shop / owner decide not worth fixing and buy a new motor like everyone else.
 
Not trying to thread-jack here, but running on the same topic: What if you are concerned more with total output than smooth idle and economy? Would the Boyesen reeds make a noticeable difference? I would be happy with even one extra horse on my NS8B. Or, I remember an old trick of flipping the reeds from riding dirtbikes years ago. Thoughts?
 
Eric.C said:
Not trying to thread-jack here, but running on the same topic: What if you are concerned more with total output than smooth idle and economy? Would the Boyesen reeds make a noticeable difference? I would be happy with even one extra horse on my NS8B. Or, I remember an old trick of flipping the reeds from riding dirtbikes years ago. Thoughts?[/
the toha manual says it s forbidden to turn the reeds to the other side they can break .
Click to expand...
 
Yep. Stock reeds give the best overall performance. Aftermarket reeds will give some minimal power increase, but they don't hold up as well, idle poorly, and cause more carb spitting.
 
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