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Author Topic: All about reed spacers -  (Read 99052 times)

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Offline motopunk

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Re: All about reed spacers -
« Reply #75 on: May 17, 2013, 10:57:25 AM »
Quote from: sandblaster on May 17, 2013, 10:31:38 AM
Nice.
I can't wait for the ride report  :-)

i hope, it will work,like the bike has sounded... if it works, like my imagine, i can ride smoother and faster through hard slippery corners, without the exploding powerband on midrange to top...  :mrgreen:... and then i can´t wait for race in 2 weeks.. 

stay tuned for ride report...  :wink:
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big 2 stroke bikes are weapons for real men, who don´t fear death or devil. ;O)
´83 kx250, ´87 kx250 (with 360 big bore), 87 kx500, ´93 kx500 sfc

---  www.der-motopunk.de.tl  ---

Offline motopunk

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Re: All about reed spacers -
« Reply #76 on: May 18, 2013, 08:03:44 AM »
ride report...

 it works well on my ´83 250, but i took the 4mm exhaust spacer out after first test ride.it where too much at bottom and little bit to less on top.
 and second test ride with only the 10mm reed spacer and 2 exhaust seal rings:
 
--- whooohooo---exactly that what i wanted... :-D :-D :-D

smooth strong powerband from bottom to top with no significant diference on top.
it comes smooth out of the small slippery corners without the big rocket effect, when the rear wheel went out of control and i had to close the throttle ...
now i can also take earlier the higher gears..feels from bottom a little bit like my old ´93 kx250, that i had a long time ago...  side effect is the engine starts better in cold.
i had also made an 5mm-reedspacer and some 1mm-gaskets, but now dont needed and goes in my spare parts for later projects.  8-)
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big 2 stroke bikes are weapons for real men, who don´t fear death or devil. ;O)
´83 kx250, ´87 kx250 (with 360 big bore), 87 kx500, ´93 kx500 sfc

---  www.der-motopunk.de.tl  ---

Offline sandblaster

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Re: All about reed spacers -
« Reply #77 on: May 18, 2013, 09:22:31 AM »
Nice.
I know it's older mods but who cares, people always appreciate it...  :-)
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline motopunk

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Re: All about reed spacers -
« Reply #78 on: May 18, 2013, 09:53:18 AM »
Quote from: sandblaster on May 18, 2013, 09:22:31 AM
Nice.
I know it's older mods but who cares, people always appreciate it...  :-)
the men of steel speak less words and do more action...  :-D
only reading is dry theory... and sometimes the older mods are much better than some new experiments... 

this theme was new for me and its amazing to feel, how diferent the bike performs now... it will always lift up ihe front tyre in 2. and 3. gear if i turn the throttle to fully open  8-) . the bike never did this before the spacer-mod...  engine runs 100% cleaner without the blubbering it sometimes made  when heated up in a race distance.

i think this mods i added to my bike, will work also on any modern 125 to find more bottom to midrange-power...
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big 2 stroke bikes are weapons for real men, who don´t fear death or devil. ;O)
´83 kx250, ´87 kx250 (with 360 big bore), 87 kx500, ´93 kx500 sfc

---  www.der-motopunk.de.tl  ---

Offline climber05

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Re: All about reed spacers - one of the best mods
« Reply #79 on: February 24, 2014, 08:50:59 PM »
Quote from: alan on October 29, 2007, 10:01:54 AM
I put on a reed spacer and a FMF Gnarly pipe and never changed the jetting at 4000 Ft. No problem! I just was easer to start, stopped fowling plugs and could run 1 gear taller in the boondocks without bogging down.
I really don't think jetting is a major issue, just watch the color of the plug and don't let it go to light brown.

Alan :-D
[/quote

Light brown is tan. Tan is good. Now im scared]
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2strokes gets me off

Offline 1901306708

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Re: All about reed spacers -
« Reply #80 on: August 05, 2014, 01:23:24 PM »
Had a little time on a dyno today. '13 kx500af with some porting

Vf3 reeds with no spacer made 62 peak at the front sprocket

With the spacer it made 58, but way more mid. Same tq from about 6500 to 8500 if I remember right.
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Offline sandblaster

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Re: All about reed spacers -
« Reply #81 on: August 05, 2014, 01:46:10 PM »
Love to see the charts if you have them..
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline dave916

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Re: All about reed spacers -
« Reply #82 on: October 26, 2014, 05:16:29 AM »
anyone running reed spacer on a 87 or 88?
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Motorrad

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Re: All about reed spacers -
« Reply #83 on: October 26, 2014, 05:22:51 AM »
Quote from: dave916 on October 26, 2014, 05:16:29 AM
anyone running reed spacer on a 87 or 88?

I used to run one on my 87.   
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Offline dave916

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Re: All about reed spacers -
« Reply #84 on: October 27, 2014, 01:53:06 AM »
Quote from: Motorrad on October 26, 2014, 05:22:51 AM
Quote from: dave916 on October 26, 2014, 05:16:29 AM
anyone running reed spacer on a 87 or 88?

I used to run one on my 87.   
Curious to know how it ran? since the 87/88 have loads more case volume than 89on

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Offline Mike Grant

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Re: All about reed spacers -
« Reply #85 on: October 27, 2014, 05:16:40 AM »
Has anyone noticed that the 87 (possibly other earlier years) intake manifold is quite a bit shorter then the newer intakes with the built in stuffer for the reed cage?. I was planning on using my 87 reed cage with the newer manifold with a spacer but I am concerned I would be just adding to the crankcase volume. Curious how the spacer worked on the your 87 Motorrad?
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Offline dave916

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Re: All about reed spacers -
« Reply #86 on: October 27, 2014, 08:31:58 AM »
the inlet tract on the 87/88 is angled a little more downwards which the makes it shorter on top side of reeds
fitting a rad valve  will almost hit the piston 
I am currently building a 88 and will probably stuff my cases as running a reed spacer seems essential 


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Offline RoostiusMaximus

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Re: All about reed spacers -
« Reply #87 on: April 04, 2015, 04:07:07 PM »
Curious about how much volume they actually had, the crank was weighted more which filled the void of the crankcase, unless it had a newer crankshaft in the old case setvid expect them to be very close.
I have them all, might have to get checking that some day
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