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rossvickicampbell
 Post subject: CR 250 Reed valves.
PostPosted: Tue Apr 26, 2005 4:28 pm 
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Joined: Sun Apr 03, 2005 4:49 am
Posts: 100
Location: Perth, Western Australia
Guys - can anyone tell me when CR 250's started coming out with Reed valves?

I have one on a 1973 CR 250 (came with the bike) and I am now worried about class eligibility?

thanks

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1974 Yamaha YZ360B
1977 Suzuki RM370B
1980 Honda CR250RA
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J
 Post subject:
PostPosted: Tue Apr 26, 2005 8:26 pm 
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Posts: 310
Location: Sacramento, CA
I believe that is an allowed upgrade to your 73.

J

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Rick
 Post subject:
PostPosted: Tue Apr 26, 2005 10:34 pm 
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Joined: Tue Jan 27, 2004 8:51 pm
Posts: 136
Location: Gilbert, AZ
It is allowable but some push the rules by putting late model reed blocks cut out of newer bike cyclinders on the old elsies. Most get away with it but I hear that if they want to throw the book at...

The bolt on blocks are totally legal as they are of era.
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FirePig
 Post subject: Re: CR 250 Reed valves.
PostPosted: Wed Apr 27, 2005 3:53 pm 
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Joined: Sun Jan 25, 2004 9:47 pm
Posts: 112
Location: Santa Rosa, CA
It is allowable in AHRMA Sportsman and age classes.

As Rick alluded to if your unit is completely off a later model CR or other make and someone lodges a protest you might be DQ'd. Another way to do it though is to machine your own manifold and reed cage if you have access to a vertical mill. You can use anything you build or have built for you.

Loren

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rossvickicampbell
 Post subject:
PostPosted: Thu Apr 28, 2005 4:23 pm 
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Joined: Sun Apr 03, 2005 4:49 am
Posts: 100
Location: Perth, Western Australia
thanks guys - most appreciated

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1974 Yamaha YZ360B
1977 Suzuki RM370B
1980 Honda CR250RA
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