Plastigauged my crank, question about inserts

I cleaned up my cases and inspected my crank. I plastigauged everything today and had very good results. My clearences are very good. I am impressed with the condition of the lower end for an engine with 30K of hard miles on it (the top end was toast).

There are some scores and pitting on the inserts, but the crank surface is fanatastic. I want to replace the inserts. The rod bearings are clearly marked "black" and the crank bearings have no color marks just "STD" on the back side.

I want to verify these part numbers before I order them.

Crank 92028-1917 -says BL, which I assume means Black? Is this standard?

Con. Rod. 13034-051 -This is black, I pretty sure on this part.

Just want to avoid a mistake, I haven't had a Kaw this far apart before.


By t_f_b , shot with COOLPIX S550 at 2009-05-06

My 750 twin manual shows blue, black, and brown bearing inserts based on the crankshaft and connecting rod having either a "1" mark or no mark.

That is to resize the insert when the clearence is out of spec. My rods are "black" inserts and since the clearnce is fine I going to replace them with the same. My main journals are the ones I am not sure about. The manual says nothing about "colored" inserts, and the factory part has been superceeded with the one I listed above. I assume there is a "standard" main bearing, is the part number I referenced "standard"?

does z1 have a bearing listing for 650s ?

I have a couple different 1977-1978 KZ650 parts manuals. The Con Rod bearings are listed 2 slightly different ways for the same part numbers. One manual shows:
13034-050 Blue
13034-051 Black
13034-052 Brown

The other manual shows:
13034-050 Mark "A"
13034-051 Mark "B"
13034-052 Mark "C"

Both manuals show only 1 part number for the crankshaft bearing (13034-053) although this was superceded later. See Kawasaki.com; it shows several superceded part numbers. Ed

Yeah the rods are still the same part number, but the mains orginally had only one part number. They were superceeded by a bearing used in a different engine serries that has some size options. After a talk with some mechanics at my local dealer I think the P/n i have will work. If no tthey are willing to take them back. The platigauge won't lie.