Hey guys and gals, glad to be here, I have an 80 something 200 3 wheeler and a 87 kx 250 kaw. bought 3 wheeler cheap, needs piston and rings, how do
i find out what this motor is??? no. on motor is TROE 2100693. and how do I make sure I do not put piston in backwards. I'm guessing it is std. bore has no markings on top of piston. thanks for the help. Joe

 

I will try a dealer, thanks Joe

 

First of all Yellowbeard, welcome!!
You are correct, this is a good site, guess everyones busy riding and too busy to reply??
As for your questions, I suggest buying a manual first of all.
I have a Clymer manual for my 1984 200M and find it quite useful.
I cant help with your engine identification, but I wouldent be surprised if all the 200 4 stroke Honda ATCs of tis vintage had the same piston and rings.
Perhaps someone can confirm?
You could try going to the bike bandit site and compare part numbers for the different years.

 

ever try to take that # to a dealership. when i needed to find out what engine year a cr500 motor i had was i just took in that # and they chould tell me.

 

thanks guys, will be checking out all the old mess. I have rebuilt a few top ends, but not the bottom end. need to pull the case apart on my kaw. after I finish up my 200. later. Joe

 

well good luck with it.