1981 KZ750 LTD Blew Up Today

Hey guys,

I'm sad to say I think I blew out a rod bearing today. It started knocking after a strong take off from a light, I had been riding for about 45 minutes. Managed to ride it home after the knock started but every roll of the throttle it was knocking. It died at the bottom of my hill. I got it started after about 5 minutes of me hitting the starter the bike smoking and me swearing. It had no power and was smoking for days :woohoo: :evil: but she got me home.

What's next you guys what should I buuuuild?

My engine had 19k on it.


Cheaper to get another engine or rebuild?
Any swaps that are fun?

I want suggestions!

Our engines have plain bearing bottom ends. Sounds like you spun a bearing.
I would remove the engine, turn it upside down on your bench, and split the cases and see what happened.