Vintage Dirt Bike Q & A

Hey guys, I'm new to the forum and would appreciate some direction. Where would I find a crank rod kit for a '78 CR250. Thanks.

Contact Racers' Toy Store (where I've been twice) or Crank Works and they'll find an IMS kit to fit.

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Michael Stiles
1979 Honda CR250R Elsinore | 2006 Husqvarna SM510R | 2007 Service Honda CR500R-AF

as i know is the rod kit from 78 to 01 the same.

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80 CR250Ra
80 CR250Ra
78 CR250R
80 CR80
82 Bultaco Sherpa 340
78 Bultaco Pursang 250 MK12
76 Bultaco Frontera 370 MK10
76 Bultaco Alpina 250
73 Bultaco Lobito 125 MK6
76 Suzuki RM125A
90 Kawasaki KX250

If my memory is correct the 1978-1980 CR250 share the same crank - or least the rod - with an early 80's ATC250R. And there is an IMS kit for the that.

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Michael Stiles
1979 Honda CR250R Elsinore | 2006 Husqvarna SM510R | 2007 Service Honda CR500R-AF

Vintage elsinores has them. Thats where I got my kit for my 1980 cr250. Its a Hotrod p/n. When you look up that part number on the Hotrods website it says for later models but it works. Someone got the calipers out and did some measuring.

Honda, I believe, only sold the complete crank for the bikes. The rod, however, is the same as for the 1981-84 ATC250r. There are aftermarket rod kits for that. I bought two Vesrah kits off of Ebay, and Wiseco sells them as well. The rods definitely are not the same all Cr250 years through 2001. The 78-80 Cr250r rod is listed 64.4mm, the years after are listed at 72mm, with a different kit even then listed for 2002 on..

Ok Fellas...

Who is right?

Some say the rod kit from 78 to 01 the same.

FTE sez the rod is the same as for the 1981-84 ATC250r.

Who is right?

Anybody have part #'s from Hot Rods, Vesrah, IMS, Pro-X ect?

My "new" Elsie needs a rebuild.

Thanks

Stan
WV

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83 CR250
83 CR480
87 YZ250
88 CR250
74 TY250
07 YZ250
83 RM250 on the resto table
91 YZ250 with an Ohlins 360 kit in resto que
83 CR125 in resto que

The measurement you are talking about is stroke, not rod length. Re-Mx has them for $109. This company shows 78-2001 the same. http://www.motoxparts.co.nz/motoxspares.php?price_image=1&category=0&brand=102&page=1&piece=1097

Detailed specs just to be sure http://www.mitaka.co.uk/HONDA%20RODS/CT.78CR250.htm

2 months ago i had a 78-80 crank to rebuild.
send it to my shop here in germany.
they installed a pro-x kit for 78-01.
the orig. crankpin 78-80 is 58mm long, later models uses a 60mm crankpin.
they shortend the pin for these 2mm and installed the kit.
that´s the secret.

_________________
80 CR250Ra
80 CR250Ra
78 CR250R
80 CR80
82 Bultaco Sherpa 340
78 Bultaco Pursang 250 MK12
76 Bultaco Frontera 370 MK10
76 Bultaco Alpina 250
73 Bultaco Lobito 125 MK6
76 Suzuki RM125A
90 Kawasaki KX250

I stand corrected!

So a current oem kit will work with small mods, eh?

Wish some one would tell me what to do.... LOL

_________________
83 CR250
83 CR480
87 YZ250
88 CR250
74 TY250
07 YZ250
83 RM250 on the resto table
91 YZ250 with an Ohlins 360 kit in resto que
83 CR125 in resto que

do it like me.

_________________
80 CR250Ra
80 CR250Ra
78 CR250R
80 CR80
82 Bultaco Sherpa 340
78 Bultaco Pursang 250 MK12
76 Bultaco Frontera 370 MK10
76 Bultaco Alpina 250
73 Bultaco Lobito 125 MK6
76 Suzuki RM125A
90 Kawasaki KX250

Did you call Racers' Toy Store as suggested in the 2nd post?

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Michael Stiles
1979 Honda CR250R Elsinore | 2006 Husqvarna SM510R | 2007 Service Honda CR500R-AF

Sent my Crank & cylinder to "The Racers Toy Store". Seem to be nice folks.

After looking around for rod kits for this bike, I realized I had 2 kits for my 83 Cr250. An OEM & a Hot Rods. I send both with the crank.

Will report back once I have reconditioned parts in hand.

Thanks Michael for the heads up on the "Store"!

Stan
WV

_________________
83 CR250
83 CR480
87 YZ250
88 CR250
74 TY250
07 YZ250
83 RM250 on the resto table
91 YZ250 with an Ohlins 360 kit in resto que
83 CR125 in resto que