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kimpybugalugs

Ty250 Mono Boyesen Reeds

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Hi all 

 

I have a 1984 TY250 Mono. As far as I can tell it is bog standard.

It runs OK.

 

My questions are:  

Would fitting Boyesen reeds make much difference?

Would they require jetting changes?

 

I put some on a TY175 a few years ago and with jetting mods recommended by John Cane it made quite a difference.

I'm not so familiar with the Mono so any advice appreciated.

 

Thanks in advance.

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If you do a web search you'll find lots of people saying things like "I put a set of Boyesens on my bike and now it's so much crisper and sharper!" The trouble is that in most cases the Boyesens were used to replace old battered reeds that no longer worked as well as they once did. To really test them properly you'd need to make back to back runs with new factory reeds. I don't have any TY specific experience but I've tried them on other bikes and prefer to use fresh OEM parts.

Edited by oldjohnno

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Yes they do make a difference. I use the dual set and they bike lugs down lower but more importantly it hangs on to max power longer. Can't advise on jetting on the TK as I use a Pwk 28mm jetted for a GG 280.

If you want a more modern feel remove some or all of the extra flywheel weight.

Edited by mattylad

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Yes they do make a difference. I use the dual set and they bike lugs down lower but more importantly it hangs on to max power longer. Can't advise on jetting on the TK as I use a Pwk 28mm jetted for a GG 280.

If you want a more modern feel remove some or all of the extra flywheel weight.

 

Thanks for the answer. 

 

Has anyone put them on with the TK carb - if so what jets?

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