<<Carbon Reeds...Quality?>>
Chad Murray
E SHiFT 8 wrote:
>
> I just got some Boyesen carbon fiber reeds and then I heard that they chip
> easy. I haven't installed them yet but I can't return them becase they're
> opened already. I know for sure they help performance but I heard they
> chip easily. Please respond if you know anything about this.
>
> Thanks
>
> Jeff
> **95 YZ125** <==(Was Dubach's practice bike)
> Irvine, CA
I've used Boyesen reeds in all my hillclimb bikes for the last 10 yrs
and have never had a set chip. I have heard of people chipping reeds but
have never had the problem myself. These bikes run at high RPM's so the
reeds are taking a fair amount of abuse. The only problem I've ever had
is the started to lift of the reed cage but this was after several years
of use.
E SHiFT 8
Dave Dossett
In article <19970120002...@ladder01.news.aol.com>, esh...@aol.com
says...
I have had my Boyesen carbon Reeds in my 250R for over two years..
Never had a problem..
Dont worry about.. Boyesen Reeds are very hight quality..
Later
dave
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Michael King
E SHiFT 8 wrote:
>
> I just got some Boyesen carbon fiber reeds and then I heard that they chip
> easy. I haven't installed them yet but I can't return them becase they're
> opened already. I know for sure they help performance but I heard they
> chip easily. Please respond if you know anything about this.
>
> Thanks
>
> Jeff
> **95 YZ125** <==(Was Dubach's practice bike)
> Irvine, CA
Jeff,
The carbon fiber reeds help performance in the high range of the RPM
only. They hurt the performance down low a little bit. The reason is
that they are stiffer than fiberglass reeds, and therefore require more
pressure differential to open, thus hurting the low rpm condition. They
are stiffer so that they resist fluttering, or not closing properly at
high rpm, thus they help the high rpm condition some.
The Boyeson reeds are good quality. Go ahead and install them. Check
them for chipping and wear every time you take off the cylinder, or when
you feel the performance at the low end, especially, is beginning to
suffer. Fortunately, when the fiber reeds chip, they don't damage the
engine.
Mike King
RMX 250
My opinions only, not those of Hewlett-Packard.
tma...@aol.com
In article <19970120002...@ladder01.news.aol.com>,
esh...@aol.com (E SHiFT 8) writes:
>I just got some Boyesen carbon fiber reeds and then I heard that they
chip
>easy. I haven't installed them yet but I can't return them becase
they're
>opened already. I know for sure they help performance but I heard they
>chip easily. Please respond if you know anything about this.
>
>Thanks
>
>
Got some in my RM, haven't logged enough time to tell you how they are yet
(too cold). Put some in my son's LEM 50, gee they got stollen... Can't
really tell you anything abou them other than they look trick and install
easy. :-)
Hope to have some opinion on them soon.
TMaxel
I don't like Frosty the snowman, I want SPRING!
EMail -> MAXEL%MTC...@Navistar.com
97 KX 60
94 RM 250
gra...@aol.com
>I just got some Boyesen carbon fiber reeds and then I heard that they
chip
>easy. I haven't installed them yet but I can't return them becase
they're
>opened already. I know for sure they help performance but I heard they
>chip easily. Please respond if you know anything about this.
>
>Thanks
>
>
>Jeff
>**95 YZ125** <==(Was Dubach's practice bike)
>Irvine, CA
>
>
The new Carbon reeds will most likly chip at the edge like ALL carbon
reeds do.
just put them in and enjoy, then if you like the perfomance then get some
more when they do chip, ( they say that they chip due to over reving the
engine, but I have taken a set out right after break in and had them
chipped)
Personaly I like the RAD valve with the stock Boysen reeds, they work good
and last forever.
mls3
Dear Jeff,
It is true that carbon reeds will not last as long as fiberglass reeds.
That being said, Boyesen Pro Series reeds use a fiberglass bottom reed
and a carbon fiber top reed. The reason we use a fiberglass bottom reed
is to increase the life of the carbon reed. This combination still
allows you to reap the benefits of carbons' responsiveness.
When designing reeds we must try to balance to opposing factors; life
vs. performance. We can certainly make a reed that will last a very long
time, but it will not provide optimum performance. Our Power Reeds
(fiberglass based) are designed to provide the perfect balance between
life and performance. Our Pro Series Reeds are designed to provide
maximum performance. They will not have the same lifespan as traditional
fiberglass reeds.
A reed in an engine turning 8,000 rpm's opens and closes approx. 133
times a second. Think about that for a minute, and then think about how
many hours of riding you do. Like any other moving part in an engine, it
will fatigue over time. Many factors contribute to how long a reed will
last. If all you are doing is woods or trail riding, your reeds probably
will last a long time. If you are racing on a frequent basis and your
bike is heavily modified (e.g. porting) the reeds will not last as long.
Our general rule is this: check reeds on a yearly basis or every time
you service your top end. Visit our website for more info.
http://www.boyesen.com/
One last point. Put the reeds in your bike and have a good time. If you
are not satisfied, after trying the reeds, send them back to us for a
full refund.
Best regards,
Mort/Boyesen
Mark Klein
>One last point. Put the reeds in your bike and have a good time. If you
>are not satisfied, after trying the reeds, send them back to us for a
>full refund.
How can anybody argue with that!
MX Tuner
Jeff @ MX SOUTH
mxt...@atl.mindspring.com (Mark Klein) wrote:
>MX Tuner
Straight from the horses mouth. Cool.
I have been using carbon reeds (not Boy.) for a few years now and they
have been holding up great. I change them only once a year.
It has been my experience that they will fray at the ends only when
the jetting is lean. They held up fine when the jetting was correct.
Jeff
Jeff @ MX SOUTH
m...@pipeline.com
http://www.bews.com/mxsouth
305-255-3718
305-255-2555
E SHiFT 8
Thanks for the info on the reeds. As soon as I get a leaner mainjet I'll
put them in.
Jeff
High Lord Gomer
mls3 <boy...@early.com> wrote:
>When designing reeds we must try to balance to opposing factors; life
>vs. performance. We can certainly make a reed that will last a very long
>time, but it will not provide optimum performance. Our Power Reeds
>(fiberglass based) are designed to provide the perfect balance between
>life and performance. Our Pro Series Reeds are designed to provide
>maximum performance. They will not have the same lifespan as traditional
>fiberglass reeds.
Boyeson reeds have held up much better than stock ones in my 90 and 95
YZs. As to the performance, I'm not good enough to tell.
>One last point. Put the reeds in your bike and have a good time. If you
>are not satisfied, after trying the reeds, send them back to us for a
>full refund.
WOW!
While you're here...Did the 644 reeds for my 95 YZ250 change from 3
petals to 1, or were both of the packages I got mislabelled?
Thanks,
Mike Nyland
mny...@mindspring.com
Gomer
95 YZ250 (Old Man)
95 XR100 (Young kid)
96 50SXR (Younger kid)
mls3
High Lord Gomer wrote:
> While you're here...Did the 644 reeds for my 95 YZ250 change from 3
> petals to 1, or were both of the packages I got mislabelled?
>
> Thanks,
>
> Mike Nyland
> mny...@mindspring.com
>
> Gomer
> 95 YZ250 (Old Man)
> 95 XR100 (Young kid)
> 96 50SXR (Younger kid)
Dear Mike,
Yes the design for the YZ250's has changed from a 3-petal top reed to a
single petal top reed. If you take a closer look at the bottom reed, you
will see that it is also different.
The change waas made to increase life, reduce top end flutter, and
improve overall reed effeciency. It is our policy to constantly improve
reeds as we discover new design strategies.
Best regards,
Mort
adavi...@aol.com
>Put the reeds in your bike and have a good time. If you
>are not satisfied, after trying the reeds, send them back to us for a
>full refund.
>
>Best regards,
>Mort/Boyesen
>
>http://www.boyesen.com/
>in...@boyesen.com
Now thats class !
LTR-RTL