Dang, I wanted it to seat in but it sounds like the break in procedures may not have been the right approach.

May be pulling both cylinders.... again!

I'll keep asking for others input here to see what I really need to do in the end.

Assistance and information is very much appreciated.

 

Why pull the back one if your not having a problem with it?

Have you run a compression and leak down test?

 

If you pull it all off please go back in with wisecos.

 

Why would you say that?

 

Can't go wrong with a forged piston. I have never seen nor gotten a bad product from wiseco.

 

Fair enough.

FWIW a friend of mine has 100k on some 9.5-1 KB pistons.

I'd say if properly set up you shouldn't have any problems with either.

 

Imhfo and we all know what those are like....... I wouldn't run a KB piston my push mower.

But again every one has their own preferences and experiences.

Imhfo and we all know what those are like....... I wouldn't run a KB piston my push mower.

But again every one has their own preferences and experiences.

 

They are working fine so far in my EVO.
Granted it is simpler than your average push mower.

 

Probably buy new rings and have the cylinders re-honed is what I'm thinking depending on what we see when we open it up ... again.

I think there is a definite issue due to errors made during break in. I may have run the break in oil too long too???

The spot on the front plug seems to show a ring gap issues allow distinct blow by to create a defined burn line on the plug, and the rear just didn't seat proper and is the oil burner.

The Indy and me talked about the critical alignment in the rings and has used them before and felt they were a good choice. His method of the first start ups mimics the manual. Cautious, multiple heat cooling cycles before hitting the road.

I just read a good article on break in from another conversation here. I didn't follow these instruction.

http://www.mototuneusa.com/break_in_secrets.htm

I sent a message to KB asking about break in specifics for my KB305+.20 and will share whatever info they give me.

Thanks to all who are helping with suggestions and comments

 

Dude... these bikes aren't rocket science. Fill it up with Rotella, or HD 20w-50... it don't matter. Fire it up, check for leaks, put your lid on, and go ride the dang thing. No need for silly complicated break in procedures, goofy break in oils, or any mystical type of thing.