rb s7 engine mod
 

hello guys i was just wondering if anyone has done a pullstart mod to this engin i want to do it but need to know how risky it is and any advise, i am useing hyper .21 parts thx escargo



all i really need is where do drill and what kind of pin to use

found it if anyone is interested http://www.unlimitedengineering.com/...86104Blem.html