Vintage Dirt Bike Q & A

I have 2 sets of reeds pictured here, both out of identical motors
1980 Honda cr250r....can somebody tell me the difference because there definately is....which one would be the better of the two...thanks garry

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Garry Mainer
#33m (retired)
Honda Cr250r 1980
Honda Cr250r 1980
Yamaha TY250C 1976
Arctic Cat 650 H1 2007

one on the left is original stainless petals...they can wreck your top end when they fatigue and break off.

Reed on right is original cage with dual stage Boyesen fibre reeds.
These work better and increase bottom end throttle response because the lighter top reed opens earlier then heavier lower petal opens for higher flow.

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'84 Honda CR500
'84 CR125
'85 KX125
'83 IT490
'82 Maico 490
'80 YZ465
'75 Husky CR360 GP Mikkola
'75 CR250
'72 DT2MX
'91 XR200

Expat....thanks, I'll try the Boyesen, have not ran the motor they came out of yet only got it running.
Nice collection of bikes you have, sure like to see a pic if you would be willing to share one

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Garry Mainer
#33m (retired)
Honda Cr250r 1980
Honda Cr250r 1980
Yamaha TY250C 1976
Arctic Cat 650 H1 2007

Happy to share pictures ............unfortunately I just cant seem to get them pasted on this board

perhaps things will work out if someone posts details how to do the task

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'84 Honda CR500
'84 CR125
'85 KX125
'83 IT490
'82 Maico 490
'80 YZ465
'75 Husky CR360 GP Mikkola
'75 CR250
'72 DT2MX
'91 XR200

If you have your pics stored on the internet somewhere like photobucket.com you can post on here using....
[img]address of the stored pic[/img]

_________________
Garry Mainer
#33m (retired)
Honda Cr250r 1980
Honda Cr250r 1980
Yamaha TY250C 1976
Arctic Cat 650 H1 2007

[img]XR200..For putt putting around...more reliable than a hammer!
'85 KX125 Awaiting restoration
. IT490. rebuilt engine and most new plastics fitted.
Needs shock and seat cover done .
'84 CR500 and CR125.Current race bikes
Show Pony.
'75 Husky 360GP "Mikkola" one previous owner and all original runner.
"Team" ...YZ465 on end
'75 CR250M1. all original with only new seat cover and piston kit fitted.
'72 DT250MX..one owner from new. all original and good runner.
[/img]

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'84 Honda CR500
'84 CR125
'85 KX125
'83 IT490
'82 Maico 490
'80 YZ465
'75 Husky CR360 GP Mikkola
'75 CR250
'72 DT2MX
'91 XR200

Sweet...nice collection....I especially like the "show pony"!

Wondered if you seen this one on ebay? I was getting pretty anxious to hit the bid button. Didn't sell, reserve not met at 4550...don't think I woulda sold it for 4550 if it were mine either.

_________________
Garry Mainer
#33m (retired)
Honda Cr250r 1980
Honda Cr250r 1980
Yamaha TY250C 1976
Arctic Cat 650 H1 2007

update on the reed situation...the boyesen reeds look like they are history. Two reeds are turned up on one side and one base reed is showing a gap, so I'm assuming they are done or my reed cage is worn down from the reeds slapping.......googled boyesen and got myself an education, looks like I need to order some new reeds.
Get outa the bike scene for 30 years and look what happens.. don't know squat!

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Garry Mainer
#33m (retired)
Honda Cr250r 1980
Honda Cr250r 1980
Yamaha TY250C 1976
Arctic Cat 650 H1 2007