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The 2-Stroke Garage => Turning Wrenches => Topic started by: Gil Gallad on July 19, 2021, 06:23:36 PM

Title: banshee reeds
Post by: Gil Gallad on July 19, 2021, 06:23:36 PM
being as most of you are yamaha officianados, can anybody tell me if banshee reeds are the same size as normal rd350lc reeds, please  :help:
cheers, gil.
p.s. i've got normal rd350lc reeds in my suzuki gt reed valve engine. only cheapo ones, but they worked long enough to get the engine running fairly right.
Title: Re: banshee reeds
Post by: m in sc on July 19, 2021, 06:27:05 PM
no. different cage sizes

Title: Re: banshee reeds
Post by: 85RZwade on July 19, 2021, 09:34:36 PM

(https://i.postimg.cc/DwZCrK1s/image.jpg)

LC on the left, RZ350/Banshee on the right
Title: Re: banshee reeds
Post by: 2t Fan on July 20, 2021, 05:47:06 AM
RX/RD-RDLC-Banshee, biggest on the right
Title: Re: banshee reeds
Post by: Gil Gallad on July 20, 2021, 04:27:58 PM
thanks for the info peeps, but that last one muddled me up a bit. i'm nearly sure my reeds and cages were for an rd350lc, but the ypvs model, whether that makes a difference? anyway i've messaged the seller and the dual stage reeds he's sending me are the correct size. they also fit some of the dt models. one thing when i built the whole reed assembly was i always put 3 bond on the gaskets. i don't like air leaks in that area. but when i removed the reed blocks, both the aluminium cage faces and the gasket faces were clean as a whistle - no 3 bond to be seen anywhere, which was odd. mounting holes on my reed cages are 58mm x 48mm :guinness:
cheers, gil.
p.s. great emoji, because as soon as i post this i'm going for a few. i love guinness.
Title: Re: banshee reeds
Post by: m in sc on July 20, 2021, 04:54:51 PM
IF you have room, yz85 v force will fit. .02

Title: Re: banshee reeds
Post by: 1976RD400C on July 20, 2021, 05:14:09 PM
Some reed cage dimensions are in the tech library

http://www.2strokeworld.net/forum/index.php?topic=1705.0
Title: Re: banshee reeds
Post by: Gil Gallad on July 21, 2021, 08:43:42 AM
thanks again for the info. mark: i've got some v-force reeds in my watch list, but i'm going to try the dual stage reeds first and see how she runs. this might sound like a daft question, but not being at all savvy with setting carbs up [definitely my weak point], would changing from normal single petal to dual stage reeds involve different jetting?
rd400, thanks for the link, but i tried copying it so i could enlarge it, but my software doesn't recognise the file header and won't show it. i tried jpg, bmp and png, but to no avail. unfortunately, even with my magnifying glass i can't read the figures on the pictures. thanks for trying anyway  :haw:
cheers, gil.
Title: Re: banshee reeds
Post by: Striker1423 on July 21, 2021, 09:11:32 AM
I know this was addressed to Mark. But, a simple Reed change would mean no change to jetting all other things considered the same.

When you start changing cages, ports, squish band, etc. Then you get into rejetting.
Title: Re: banshee reeds
Post by: m in sc on July 21, 2021, 10:03:27 AM
with boyesens, yes it can affect it. they even mention it in the instructions. (might run a bit richer). But otherwise no difference. and in most cases with boyesens it doesnt matter either.
Title: Re: banshee reeds
Post by: SoCal250 on July 21, 2021, 11:23:17 AM
Quote from: Gil Gallad on July 21, 2021, 08:43:42 AM
rd400, thanks for the link, but i tried copying it so i could enlarge it, but my software doesn't recognise the file header and won't show it. i tried jpg, bmp and png, but to no avail. unfortunately, even with my magnifying glass i can't read the figures on the pictures. thanks for trying anyway  :haw:
cheers, gil.
Gil, I can you forward the original file to you in PNG.
Title: Re: banshee reeds
Post by: m in sc on July 21, 2021, 11:44:25 AM
a small version comparing:
Title: Re: banshee reeds
Post by: Gil Gallad on July 22, 2021, 06:13:35 AM
socal, yes mate, you could pm me the png file please.
thanks for all the help on my first built from scratch, that will never run so i wouldn't bother reed valved engine. i'm still enjoying it, but want it as right as it can be  :clap:
cheers, gil.