Top-End Reassembly

  • Nessism
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Re: Top-End Reassembly

Yesterday 06:11 - Yesterday 09:43
#920608
The cylinder bore scuffing after only 6000 miles looks alarming.  I don't want to start an oil thread, but I'd use some high ZDDP oil, not just Rotella.  Driven 40 would be good for break-in, run two batches, 400 miles each, then switch to some high ZDDP motorcycle oil, or something like, M1 15W-50, since it has a bunch of ZDDP.  
Ed
Carb O-ring Kits : www.kzrider.com/forum/14-vendor-forum/62...rburetor-o-ring-kits

www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know

1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Last edit: Yesterday 09:43 by Nessism.
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Re: Top-End Reassembly

Today 16:12 - Today 16:28
#920634
Nessism wrote:
The cylinder bore scuffing after only 6000 miles looks alarming.  I don't want to start an oil thread, but I'd use some high ZDDP oil, not just Rotella.  Driven 40 would be good for break-in, run two batches, 400 miles each, then switch to some high ZDDP motorcycle oil, or something like, M1 15W-50, since it has a bunch of ZDDP.  

Might be the scuffing looked worse than it actually was. 
Could barely catch a fingernail, and the glaze break hone job (I think) eliminated it.



I'm reluctant to upgrade the oil before the engine indicates a significant reduction of use.  
Likely be Shell Rotella T6 til then.
~~~

Same head BTW...different valves


🫠
 
1982 KZ1100-A2 bike
1984 ZN/ZX1100 motor
Last edit: Today 16:28 by daveo.

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