I have just come into possession of a project bike, a KZ250 DSR (‘81 D2 I believe). I was told that it was seized, but it is not, so I’m trying to get it to a point where I feel comfortable attempting to start it. (Believe that it has not run in 15 or so years.)
In trying to just make sure everything is ‘there’, I’m realizing that I’m missing an air box, completely. The carb was just attached via the intake manifold. I’ve read a little on here about the mixed results with pod filters and the modified carb jets. I didn’t see that those were ‘for’ a 250 in the classified.
I’ve also noticed what I believe is the breather port (metal tube protruding upwards from the back of the engine, has a rubber boot that holds a 90-degree barbed fitting; bottom of this fitting looks like it has some sort of pressure release mechanism marked with an ‘F’. This has no hose attached but looks like it should. Did this originally connect to the air box? Is there an issue with just leaving it loose? It will spray oil vapor, correct? Any way to ‘deal’ with that?
So, I’m wondering: for the sake of testing, can I just run with an open carb safely, and if I go with a pod, are the performance issues impactful on a 250 for a first bike? Any other tips or suggestions in this area?
Other than that, I am slowly going through the engine and carb. I need to replace some gaskets, order a new petcock and fuel line, etc.. then hook up the new battery I suppose. Any other sage advice for someone trying to rehab an ‘81 KZ250 CSR?