tntjz3

Is there any thing else I need to rebuild the stock KM 23cc motor?
CY snap Ring set
CY/RC pin washer set
Zenoah / CY RC/ LH crankcase gasket
Zenoah RC engine bearing set
Oil Seal set
RC/CY pin Bearing
CY/RC Cylinder gasket
This is a parts list from Dave's Motors. My engine is running great, but I thought I would pick up a rebuild kit while I have the spare cash. Any input would be of great help. Thanks!

SAVAGEJIM

Honestly, if I were you, I would simply continue to run the engine until it dies. Then, buy a Zen or CY (preferrably 26cc, or more) and put that in as an engine upgrade. You will definitely feel the power difference (as well as the longevity and durability from the quality of these engines).

If you set on rebuilding this engine, I would suggest replacing the cylinder head and piston with a CY head and piston (I believe these engines are an exact clone of CY engines). Also, if you can rebuilt the lower end with CY bearings (or better aftermarket bearings) and even an upgrade crank, that would help make it just a bit more better.

For rebuilding instructions, watch these vids by Fast Eddie. As he goes along, he even tells you which parts you must or should replace during every rebuild (there are 9 vids). These are very extensive and very good rebuild vids. And these instructions are also generally good for any other 2stroke gasser RC engines or whatever displacements.
[youtube]http://www.youtube.com/watch?v=e0aFZ1ACrsE[/youtube]
http://www.youtube.com/watch?v=EQimp...eature=related
http://www.youtube.com/watch?v=4Dd75...eature=related
http://www.youtube.com/watch?v=_8Y_C...eature=related
http://www.youtube.com/watch?v=P8rdv...eature=related
http://www.youtube.com/watch?v=MAzWd...eature=related
http://www.youtube.com/watch?v=0pjMC...eature=related
http://www.youtube.com/watch?v=1uSMf...eature=related
http://www.youtube.com/watch?v=xUzYg...eature=related

tntjz3

Thanks Savagejim, I have that video collection downloaded, great info. I'm going to agree with you, and take your advice. I was thinking that would be the better road to take, but I love to tinker! I will wait till this one goes, and then get the better engine. Thanks.

46u

My Feedback: (3)

For not a whole lot more depending on what goes wrong with the KM engine you could buy a whole other and better engine. All so bigger with more HP.

One other thing many people over look is when working on any of these engines you really need to torque all the bolts to the recommend torque values. Those that have problems blowing base gaskets on the 2 bolt engine probably do not torque there bolts.

tntjz3

Did you read my resonse to SavageJim? That is what I'm going to do.

46u

My Feedback: (3)

Sorry will not try and help any more and did you read my WHOLE post? [X(] Was not only about getting another engine!!!!!! Was only agreeing with what Savagejim said. Will make sure I keep my opinion when it comes to you to my self.

tntjz3

That would be cool, try to remember that.[>:]

46u

My Feedback: (3)

No problem DH you are blocked Have a nice day.

tntjz3

Sweet, by looking at how many post you have, all you do is sit on you ***** in front of your computer in your parents basement.

SAVAGEJIM

Easy now, he has been RC racing for many years, and even has a hand in motorcross dirtbikes (I think).
He didnt mean it that way at all, he is not trying to poke at you at all.

EngageRC

the km motor is not worth the time and effort to rebuild.

get a CY or other well known brands.

i'd use the km for spare parts.