Author Topic: CR 250 GEM REEDS  (Read 7411 times)

0 Members and 1 Guest are viewing this topic.

Offline jimg1au

  • Legend
  • *****
  • Posts: 3489
    • View Profile
CR 250 GEM REEDS
« on: December 15, 2015, 07:25:45 pm »

Offline 211

  • A-Grade
  • ****
  • Posts: 340
    • View Profile
Re: CR 250 GEM REEDS
« Reply #1 on: December 15, 2015, 09:37:39 pm »
GEM reeds have always been and continue to be acceptable pre75.

Offline KTM47

  • Legend
  • *****
  • Posts: 1412
    • View Profile
Re: CR 250 GEM REEDS
« Reply #2 on: December 18, 2015, 01:25:48 pm »
GEM reeds have always been and continue to be acceptable pre75.

So what does 13.14.4.4 No reed valves permitted mean?

We all know what 13.14.4.8. Thor and KLP swingarms are not acceptable means
MAICOS RULE DESPITE THE FOOLS

1999 KTM 200, 1976/77 KTM 400,1981 Maico 490

Offline Gippslander

  • A-Grade
  • ****
  • Posts: 467
  • Google "Ancient Greek Sculpture for Kids" 2C more
    • View Profile
Re: CR 250 GEM REEDS
« Reply #3 on: December 18, 2015, 04:21:22 pm »
Yeah I saw that bit about THOR swingarms, not sure how the system works – one rule for some people another rule for others – perhaps some of us don't have the right friends – last time the National's were run at Broadford this bike went through Scrutineering – no question at all  -- 100% compliant for pre-75





and – I don't know who the Husky owner was, and I'm not saying anything derogatory about him – especially because it was a beautifully prepared bike -- this is just a comment on bloody rules that are not "predictable" because they are not well sorted or well thought out or consistently applied – take your pick

And just noticed it's got a reed valve -- crikey -- no hope of running this bike in the 2016 Nationals  ::)
« Last Edit: December 18, 2015, 05:47:03 pm by Gippslander »

Offline LWC82PE

  • Superstar
  • ******
  • Posts: 6006
    • View Profile
    • PE motorcycles & SuzukiTS.com
Re: CR 250 GEM REEDS
« Reply #4 on: December 18, 2015, 06:36:21 pm »
Quote
So what does 13.14.4.4 No reed valves permitted mean?

Its ment to say no Mossbarger reeds. GEM and otther period reed valves DH? are ok

Thor swingarms only came out in 1976, however i am not entirely sure the diamond section ones were available then yet. He was making rectangle box section swingarms very similar to Profabs first. But yeah certainly a no go for pre 75

Those valves on the husky forks are just air valves right? or are they something more special?
« Last Edit: December 18, 2015, 08:07:55 pm by LWC82PE »
Wanted - 1978 TS185 frame or frame&motor. Frame # TS1852-24007 up to TS1852-39022

Offline 211

  • A-Grade
  • ****
  • Posts: 340
    • View Profile
Re: CR 250 GEM REEDS
« Reply #5 on: December 18, 2015, 07:47:32 pm »
the bike measured in less than 4"of travel; measure was done at scrutineering.
the air caps are just fancy valve caps and 100% Ok
 
« Last Edit: December 18, 2015, 09:30:23 pm by 211 »

Offline LWC82PE

  • Superstar
  • ******
  • Posts: 6006
    • View Profile
    • PE motorcycles & SuzukiTS.com
Re: CR 250 GEM REEDS
« Reply #6 on: December 18, 2015, 08:09:21 pm »
Quote
the air caps are just fancy valve caps and 100% Ok

Thats what i was thinking. The photo was drawing attention to them so it go me thinking if they were something more.
Wanted - 1978 TS185 frame or frame&motor. Frame # TS1852-24007 up to TS1852-39022

Offline Gippslander

  • A-Grade
  • ****
  • Posts: 467
  • Google "Ancient Greek Sculpture for Kids" 2C more
    • View Profile
Re: CR 250 GEM REEDS
« Reply #7 on: December 18, 2015, 08:44:28 pm »
The photo of the front was to show the triples -- not sure about them so I was sort of hopeing someone may comment.

My thoughts are -- if the arm is the same dimensions as the arms available in the day -- and to make that easy say the standard 250 Mag arm then its just "bling" and certainly no suspension improvement (and they are not lighter -- bloody solid they are). Have to fall into the same category as the rear brake lever and the rear backing plate to frame rod -- nice bling

So -- where do we sit? Bog standard bikes OR something we can bling up but only if there is no performance enhancement OR do we get rockin' and have "hot rods" and get what I saw in Europe -- 85 riders 3 deep on the start line.....
« Last Edit: December 19, 2015, 12:21:33 am by Gippslander »

Offline Momus

  • Legend
  • *****
  • Posts: 687
    • View Profile
Re: CR 250 GEM REEDS
« Reply #8 on: December 18, 2015, 09:06:11 pm »


So -- where do we sit? Bog standard bikes OR something we can bling up but only if there is no performance enhancement OR do we get rockin' and have "hot rods" and get what I saw in Europe -- 85 riders 3 deep on the start line.....
[/quote]
Euro/evo is the go. We need an expression class for hotrods and hybrids. The revised rules are a good step in this direction.
If you love it, lube it.

Offline 211

  • A-Grade
  • ****
  • Posts: 340
    • View Profile
Re: CR 250 GEM REEDS
« Reply #9 on: December 18, 2015, 09:37:15 pm »
211 -- typo? - "9" inches?
Typo - sorry fixed - now says 4"

Offline KTM47

  • Legend
  • *****
  • Posts: 1412
    • View Profile
Re: CR 250 GEM REEDS
« Reply #10 on: December 19, 2015, 02:43:17 pm »
GEM reeds have always been and continue to be acceptable pre75.

So what does 13.14.4.4 No reed valves permitted mean?

So is the rule going to be changed to permit GEM reed valves and I believe Yamahas had them too?
MAICOS RULE DESPITE THE FOOLS

1999 KTM 200, 1976/77 KTM 400,1981 Maico 490

Offline Rossvickicampbell

  • Legend
  • *****
  • Posts: 3779
    • View Profile
Re: CR 250 GEM REEDS
« Reply #11 on: December 19, 2015, 02:49:16 pm »
KTM - in the "other" thread I posted an MA response - Mossbarger reed valves not allowed - GEM and OEM are OK.

Rossco
1974 Yamaha YZ360B
1980 Honda CR250R - Moto X Fox Replica

HeavenVMX

  • Guest
Re: CR 250 GEM REEDS
« Reply #12 on: December 19, 2015, 02:52:14 pm »
The MA WEB site MOMS download file has been fixed for 13.14.4.4 and possibly others, who knows. It was clearly a typo as, for once and unlike the EVO rule rewrite, the Commission minutes actually clearly showed the discussion and reason for the change.

This naturally begs the question who proof reads the MOMS and is it OK to just change a published rule book without giving it a version number or revision number so that changes can be highlighted/tracked? Apparently not
« Last Edit: December 19, 2015, 02:55:24 pm by HeavenVMX »

Offline KTM47

  • Legend
  • *****
  • Posts: 1412
    • View Profile
Re: CR 250 GEM REEDS
« Reply #13 on: December 19, 2015, 02:59:40 pm »
If they are permitted the GCRs as available on the MA website need to change.

Anything I post I research and the only mention of reed valves for the Pre75 class is what is in the new version of the MoMS.

As posted elsewhere the rule states:

13.14.4.4. No reed valves permitted.

There is no mention of anything else.  However I do remember seeing it somewhere other than on here.  Maybe in a rule alteration bulletin.

I see it has now been changed. So the forum is good for something.
MAICOS RULE DESPITE THE FOOLS

1999 KTM 200, 1976/77 KTM 400,1981 Maico 490

Offline Rossvickicampbell

  • Legend
  • *****
  • Posts: 3779
    • View Profile
Re: CR 250 GEM REEDS
« Reply #14 on: December 19, 2015, 04:04:47 pm »
I received a reply from MA this morning re the pre 75 reed valve issue - pertains to Mossbarger reed valves only being banned

Thanks for your email. Please accept the Commissions apologies for the typo in the 2016 MoMS. A bulletin will be released to advise that it is only Mossbarger (or replica) reed valves that have now been banned from Pre 75 Classic MX & Classic DT.

The new GCR wording will be as follows:

13.14.4.4 No Mossbarger type (or replica type) reed valves permitted.


Very fast reply from MA - thanks

Rossco
1974 Yamaha YZ360B
1980 Honda CR250R - Moto X Fox Replica