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I’m trying to learn and gather information I appreciate everyone who contributed. I know what needs to be done to be right, but it’s not worth the expense. I’m trying to find a balance between cost, and the best or least wrong way. Sent from my iPhone using Tapatalk

The ring that came out of the engine has a gap of .016 at the very top, half inch down is .018”. The rings from the used replacement piston yield the same results. I’m genuinely curious, what is so special with setting ring gaps? I can blue off sealing surfaces in injection moulds after a...

Well at lest I’m confident that I have the head, and barrels lapped completely flat. The head gasket shouldn’t leak The idea behind the oversized ring is to be able to get a tight ring gap[emoji1743] Sent from my iPhone using Tapatalk

I agree, it’s a disposable engine/bike, but if I can get it to run again with minimal funds it’s worth a shot Sent from my iPhone using Tapatalk

Thank you, I will have to give them a call Also still have to call Bondi, and KMM to get laughed at lol Sent from my iPhone using Tapatalk

Ok, so we all in agreement that I’m a idiot for trying this, my original question was if anyone had first hand knowledge of a shop that had a vertical honing machine. That machine with the ridged hone is designed remove material to achieve round parallel bores Sent from my iPhone using Tapatalk

My friend who is a machinist of 25 years says he can’t see a reason that it won’t work as long as the piston is square in the bore , but agrees with me and everyone else that it’s not the proper way to do things. Sent from my iPhone using Tapatalk

I hear what everyone is saying, I understand that this is not the “right” way, but if it works it will be good enough. The bike is not worth the cost of oversized pistons, but if I’m able to get to run without burning oil for a set of rings, it will be good enough till I’m in a better spot...

This is the information I’m working off of from another forum, it been quoted many times, and people have reported back that the results are great. There is also a procedure to lap the head so the head gasket can seal properly (which I have already done, the head and barrels were definitely not...

Tried to get some pictures today, couldn’t get the lighting right. Sent from my iPhone using Tapatalk

Well where the rings run is very polished, and front to back is feathered from basically no cross hatching (the odd deeper hatch is still visible) out to what could be considered normal. It “feels” completely smooth, and the piston still has that rainbow shine from the original machining with a...

Your are correct, it does its job great.. my only complaint is its kinda ugly, there isn’t much out there that can compare with the same cost of ownership. Maybe SV650? Sent from my iPhone using Tapatalk

Lol, that’s pretty much why everyone on that forum says stock is the best. I know it’s not a great bike, but it’s what I have to work with for a couple more seasons.. I doubt anyone has a better then ex500 running that they would part with for $400 Sent from my iPhone using Tapatalk

I believe there is confusion between honing and deglazing, I completely agree that deglazing is not going to help me. I was hoping someone knew of a shop fist hand that has the proper honing machine in house. Sent from my iPhone using Tapatalk

FOG is definitely opinionated. I was under the impression that a proper sunnon hone machine or equivalent could easily correct up to .005” ? I’m I wrong and not understanding what I’m reading.. it appears to me that the honing operation is done after a boring to bring it straight and round...

Measuring with a bore gauge I see about a .003” difference sideways vs front and back. Like I said, I should have solid numbers by the end of the day. Sent from my iPhone using Tapatalk

I’m getting it measured with a very accurate computer controlled machine, should have solid accurate data soon. Sent from my iPhone using Tapatalk

Maybe I’m not explaining it correctly, can you explain your disagreement. In the ex500 forum there is a member that is a machinist by trade that used to run a ex500 race team, and race himself. After reading many of his posts that is how I interpreted it.. I don’t claim to know anything, just...

You are correct sir lol Sent from my iPhone using Tapatalk

I measured the bore by putting it on the mill and spinning a dial indicator and got +.002” front and back and “0” coming through the middle/side could have measured wrong, I will see if Q/C at work can put it on the CMM and get me real numbers. The engine is apart because I put a hole in the...