Author Topic: conrods  (Read 3907 times)

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Offline Fenno

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conrods
« on: October 01, 2007, 07:15:12 pm »
does anyone know if the conrod from an 83 cr250 is same an an 84 cr250
the manual states that the bore and stroke is the same as well as piston pin diameter.
a few bike shops have only listing for the 84 cr250re not any older
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plus years of collecting 83 Cr junk

Offline Snowy 76

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Re: conrods
« Reply #1 on: October 01, 2007, 07:46:25 pm »
I have a PRO-X rod catalogue that says CR250 rods are the same from 78 to 01?,would double check though.
Couple of CR`s

Offline crs-and-rms

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Re: conrods
« Reply #2 on: October 01, 2007, 09:06:31 pm »
the 81 part number is 13201-430300 the 82 part number is 13201-ka4-700 the part number for the 83 model  is 13200-ka4-741 the part number for the 84 ,85 and 86 is the same it only list,s rod set part number13200-ka4-740  magoo might be able to help with this  . but the 84 model was very diffrent to the 83 model hope this helps

Offline Fenno

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Re: conrods
« Reply #3 on: October 01, 2007, 10:03:03 pm »
thanks will get onto Magoo
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plus years of collecting 83 Cr junk

Offline Hoony

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Re: conrods
« Reply #4 on: October 02, 2007, 06:42:05 am »
Serco in QLD can probably supply a "HotRods" conrod kit for the 84 RE. i have used these for many years in my CR250RG '86 model with no problems at all.
Long time Honda Fan, but all bike nut in general, Big Bore 2 stroke fan.    http://www.youtube.com/watch?v=XJoKP6MawYI
1985 Honda CR500RF "Big Red"
1986 Honda CR250RG
2005 KTM 300EXC "The GruntMeister" ( I love that engine)

Offline Fenno

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Re: conrods
« Reply #5 on: October 16, 2007, 09:23:35 pm »
an 84 rod works fine, same size just a  smaller length main pin (2mil)
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plus years of collecting 83 Cr junk

Offline LWC82PE

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Re: conrods
« Reply #6 on: October 16, 2007, 09:32:23 pm »
also if you get stuck try Bikes and Bits importers in WA, sorry dont have their contact details here. they claim to have the worlds largest stock of rod kits and should be able to help you. they have a database of rod dimensions. if they dont have the exact one for your bike they usually can find one from another model that will fit.

have you thought of getting a honda cross reference program from here. ive got the suzuki one and find it very useful

http://www.zedder.com/msg16.htm or http://www.zedder.com/
« Last Edit: October 16, 2007, 09:34:45 pm by LWC3077 »
Wanted - 1978 TS185 frame or frame&motor. Frame # TS1852-24007 up to TS1852-39022

Re: conrods
« Reply #7 on: October 24, 2007, 08:40:41 am »
great idea however looks like their cross referencing only goes back to '87 and newer CR250s.....d'oh!.....

Offline evo550

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Re: conrods
« Reply #8 on: October 24, 2007, 07:13:54 pm »
puppie,
Best option is to have the rod removed and get Pro-x to cross reference the dimensions with all rods, 9 times out of 10 a rod from another manufacturer will fit if you can't get a honda one.

Offline Fenno

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Re: conrods
« Reply #9 on: October 24, 2007, 07:27:39 pm »
thanks guys but its all done and running like a rocket
like I said the 84 rod works fine
CR480rd
CR250rd
plus years of collecting 83 Cr junk