CR/MR elsinore

[ola_martin]

Hello.
I have a CR250-73/4, it has a MR (I think, has separate lubrication with oilpump) bottom end with the CR cylinder and head. It came with the stock CR case in bits, it has a gearbox problem. So I wonder if I can put parts from or the whole gearbox from the MR into the CR engine to be able to use the stock engine?
Thanks

[jimg1au]

you can put a mr gearbox in a 1973/4 cr crank cases,i doubt it is a mr as mr250 motors are similer to 1975/6 crs.more likely you have a mt which are similer to 1973/74 cr250s.and mr250s never came to australia.they have mr as part of the engine no

[matcho mick]

err wrong Jim,i worked in a honda shop in the 70's,we sold MR175'S,& 250's ,"it's huge" bought one,(D Eastlakes ),i remember riding it after servicing it,

[jimg1au]

mick
it has been on this forum before and it was agreed that honda never brought mr250s into australia.they were made for 1 year only 1976.i have been searching for cr250 parts since 2004 and hever came accros any parts for them in australia.i have a 250mr motor i got very chep from the states,you cant make them look like 1973/74.only internals fit and clutch/ignition cover.crank is longer on mr250.most likely a few came in via grey imports.


http://www.hondamuseum.com/cycles.asp?pg=photos&bike=MR250&name=1976%20MR-250%20Elsinore

[ola_martin]

Ok then, so if I have a MT bottom end could I still fit the gearbox in my CR cases? It came with a tank thats like the CR tank, painted in silver with red sides, only in steel. I guess this tank and the motor came from the same bike.

[jimg1au]

YES
the gearbox will fit in the cr.the crank is longer to enable lighting coils.

[ola_martin]

Thanks! I live in Norway and have no idea if MT or MR's where imported here at all...

[jimg1au]

send me you engine no and i will tell you what you have got.
here is an other helpfull web page

http://www.honda-elsinore.com/

cheers

[LWC82PE]

MR's were mainly for USA but we got a few in Australia

[ola_martin]

send me you engine no and i will tell you what you have got.
here is an other helpfull web page

http://www.honda-elsinore.com/

cheers

The CR engine is numbered: CR250ME 1005285
The MT engine is numbered: MT250E 2010440
Thanks

[jimg1au]

hi
you have a pre75 legal bike
1973 frame and a mt motor that is leagl throught follow on rules.
most 73/74 cr stuff will interchange in the mt motor.you can bolt a 1973/74 piston head and barrell on the mtbottom end.or you can get lozza to port it for you,he has my spare mt barrell.
cheers
jim