Which replacement reeds for the Boyesen Rad Valve ?

Neek
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Neek
Edited Date/Time 8/31/2014 6:38am
Hi guys,

I just got for free a Rad Valve for my 07 250 YZ.
The reed cage and boot are in great condition but the edges of the carbon reeds are a little bit cracked and I do not want to install it without new reeds.

Currently, the Rad Valve is equipped with these reeds which look to be the Pro Series reeds :


Is there other options of reeds for the replacement on the Rad Valve ?
Should I buy the same or change for other series from Boyesen ?

Thanks for your advises !
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Matt Fisher 8/15/2014 9:36am
8/15/2014 9:36am
For your Rad Valve, get Rad Valve specific reeds. It's unlikely reeds meant for a stock cage would even fit the Rad Valve.
lamy962
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lamy962 8/15/2014 10:23am
8/15/2014 10:23am
Yeah the Rad Valves take specific reeds, the stock replacement Pro Series reeds won't work. You need Boyesen part # PSR-034.
Mr Bean
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Mr Bean 8/15/2014 10:36am
8/15/2014 10:36am
Neek wrote:
Hi guys, I just got for free a Rad Valve for my 07 250 YZ. The reed cage and boot are in great condition but the...
Hi guys,

I just got for free a Rad Valve for my 07 250 YZ.
The reed cage and boot are in great condition but the edges of the carbon reeds are a little bit cracked and I do not want to install it without new reeds.

Currently, the Rad Valve is equipped with these reeds which look to be the Pro Series reeds :


Is there other options of reeds for the replacement on the Rad Valve ?
Should I buy the same or change for other series from Boyesen ?

Thanks for your advises !
Those indeed look like the Pro Series.

Lamy gave the correct Boyesen part # for the replacement reeds - they have fiberglass top and bottom petals with a CF petal sandwiched in between.

They should provide better lifespan than the solid CF petals on the Pro Series.

Neek
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Neek 8/16/2014 5:41am
8/16/2014 5:41am
Thanks guys for your quick reply and help, I am gonna stick with the specific reeds.

Last question : should I re-jet my scooter after installing the rad valve ?
I read on Thumpertalk you must lean the bike a little bit after it.

Thanks,

Have a great day.

The Shop

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queen of spodes 8/18/2014 5:23am
8/18/2014 5:23am
Neek wrote:
Thanks guys for your quick reply and help, I am gonna stick with the specific reeds. Last question : should I re-jet my scooter after installing...
Thanks guys for your quick reply and help, I am gonna stick with the specific reeds.

Last question : should I re-jet my scooter after installing the rad valve ?
I read on Thumpertalk you must lean the bike a little bit after it.

Thanks,

Have a great day.
> you must lean the bike a little bit after it.

+1
mxracer966
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mxracer966 8/18/2014 12:40pm
8/18/2014 12:40pm
Neek wrote:
Thanks guys for your quick reply and help, I am gonna stick with the specific reeds. Last question : should I re-jet my scooter after installing...
Thanks guys for your quick reply and help, I am gonna stick with the specific reeds.

Last question : should I re-jet my scooter after installing the rad valve ?
I read on Thumpertalk you must lean the bike a little bit after it.

Thanks,

Have a great day.
I have a 2013 yz250 with a PC pipe and silencer ran a 180 main when I put boyesen rad valve in it I dropped down to a 175 main
mxracer966
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mxracer966 8/18/2014 12:41pm
8/18/2014 12:41pm
lamy962 wrote:
Yeah the Rad Valves take specific reeds, the stock replacement Pro Series reeds won't work. You need Boyesen part # PSR-034.
I ordered that part number replacement reeds and they sent me the pro series reeds am going to call them
Neek
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Neek 8/31/2014 6:38am
8/31/2014 6:38am
Any update with your order mxracer966 ?

Since only my carbon fiber seems to be damaged, I was considering the idea of replacing this reed by one made from carbon sheet as below :

http://www.ebay.com/itm/CARBON-FIBRE-REED-VALVE-SHEET-10cm-x-11cm-0-35m…

just need to check the thickness of Boyesen reeds when I am back home.

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