Need some help disasembling a honda 70cc and 110cc clone

[Modding_out]

I have two motors that I need to get running and I need some help concerning the timing chain.

I have a machine shop and have built up 5hp racing brigs as well as made countless other stuff, but i need to know is how to work around the timing chain on these lay down Honda's.

1. How do you remove the chain?
2. and how do I put it back on in the correct position? I assume it has timing marks naturally, but how do I line up the lower sprocket with the one on the cam? TDC and the cam in what position?


I could use some exploded views and general advise. I want to lay down a nice port and polish job, then mill the head....sound good? yes/no... I'm not spending tons of $$$ that's the point most punch for the least amount of money.

Thanks! oh, and if this is hard to read I apologize a head of time, I'm a little after the Christmas party.

[Vealmonkey]

Since they are a clone engine, get a shop manual for an atc70/ z50 based engine. That will point you in the right direction.

[oneroom42]

watch "thealexmanvideos'' how to's on youtube

[Modding_out]

watch "thealexmanvideos'' how to's on youtube

Thanks for the link! The guy on you tube answered a lot of my questions.


This is just general.... but how much can I mill off the head before I run into fun little problems like chain slap and pre-detonation? I still would like to use 87 obtain pump gas when It's all put back together.