Help-Top end rebuild

[lithium]

I have a 1990 Yz 125. I have a lot of riding space around my house so ill usually jump on the bike and take it for rides frequently. I am the second owner, and im pretty sure its time for some top end work. I'm considering ordering the Wiseco top end rebuilding kit for my bike. I'm not using OEM because to be honest im not really into throwing much money into it...Its just a play bike and for trail riding with friends and such. A few questions...This is my first top end rebuild. I was wondering if the parts will just come right out of the box and you can install them,or will i have to do extra work such as boring and what not? Any input would be great :)

 

[gowen]

It is going to depend on how worn out the cylinder is. Get a service manual. Clymer is good, so is factory.

 

[nickyd]

if the cylinder (probably does) has a nikasil type coating on the bore, it will be a quick swap as long as the nickel is still there and not flaked....if so, you will need to have it recoated and THEN build.