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if you bought a new cylinder, piston, rings and changed the rings often and kept them within specs would you ever have to bore. also when you get a new piston and rings what is the proper procedure to check ring gap? thanks homies

The rings only rub at the top, and the skirt only rubs at the bottom, so there is some tapering of the bore over time.... but if you keep on top of things and run lots of oil.... I dont think you could wear a jug out just weekeknd riding the thing. Rings prolly' every two years or so....

End gap is easy..... stick the ring inthe bore, about 1/2" down...

SQUARE IT UP!!!

Then measure the gap....

Simple.

thanks bob. every 2 years? i was thinking every year. haha shows how much i know.

What I do when building my car engines. I made a tool that inserts the ring down about .750 into the cylinder. I spun it in my lathe. Shaped like a top hat so you can load your ring in than insert this tool to push the in square and you know that the ring is perfectly flat and than measure the gap at that point.

aloha450x wrote:thanks bob. every 2 years? i was thinking every year. haha shows how much i know.

I'm just guessing on how much your going to ride it.....

I only get out half a dozen times a year or so....




( My top end is 4 years old...)

AlisoBob wrote:

aloha450x wrote:thanks bob. every 2 years? i was thinking every year. haha shows how much i know.

I'm just guessing on how much your going to ride it.....

I only get out half a dozen times a year or so....




( My top end is 4 years old...)

But horse power to weight ratio its hard on that there motor.

AlisoBob wrote:

NICE.

Well, at least he is to the point and not jerking you around.

i just push the ring in the bore with the piston that makes it sqaure

crflattracker wrote:i just push the ring in the bore with the piston that makes it sqaure

on my gen-1 I ran over 2 years on the same topend, probably rode an average of every other weekend and when it seazed (due to stuck throttle) it still looked great and still mic'ed well top to bottom. a properly tuned and properly lubed 500 can last quite a number of years on the same topend. Remember, they are slow turning and very mildly tuned. a 125 topend, even well cared for, won't last a fraction of the time a 500 one will because of the crazy high rpms and the radical tune they run, that piston get real hot and goes real fast, not so much for the 500.

so if ya ordered a new cylinder and oem piston and rings what are the steps needed to make it right? ring gap .02 correct. do ya need to hone the cylinder to get proper piston to cylinder clearence or does it come ready to go from honda?

That is some damn good questions, never thought about new stuff from Honda to be ready or not.