Master cylinder swithc?

[fiddle mike]

I'm in kind of a jam. Got a leak in front master cyl, but need the bike.
I have a '99 Magna and a '95 Shadow VLX.  Is there any reason I can't use the front master cyl off one of those bikes till I can get the Valk's rebuilt?

[Bighead]

That are probably the same part so I would say you should be fine.

[fiddle mike]

Different part numbers, but they appear to be identical.

[Paladin528]

I would wonder about volume if the donor bike only has a single disc up front. 

[sandy]

The inner diameter is the key to proper operation. I'd say if they look alike, go for it.