Post by CustomScootChris on Sept 23, 2013 10:40:25 GMT -5
Soo last night I was on a late night excursion when my intake valve snapped and became part of my piston. 
The question I have is when I do buy another rebuilt kit and that will be soon lol... I'm looking for something bigger than the 50mm bore I recently blew.. I have a 139QMB GY6 motor with Iridium spark plug, and performance exhaust and performance carburetor and variator and performance CDI and performance ignition coil basically everything added that can be. I'm looking for a big bore kit with a new head and piston jug kit; 50mm or bigger preferably Most importantly is this; When I do eventually put it all back together What are the details I need to know? like valve gap clearances and spark plug gap clearance and pilot jet size and all that important stuff so I can avoid this from happening again since I believe this problem is due to my inexperience with this motor and the finer details of tuning it. Any input would be appreciated.....
The question I have is when I do buy another rebuilt kit and that will be soon lol... I'm looking for something bigger than the 50mm bore I recently blew.. I have a 139QMB GY6 motor with Iridium spark plug, and performance exhaust and performance carburetor and variator and performance CDI and performance ignition coil basically everything added that can be. I'm looking for a big bore kit with a new head and piston jug kit; 50mm or bigger preferably Most importantly is this; When I do eventually put it all back together What are the details I need to know? like valve gap clearances and spark plug gap clearance and pilot jet size and all that important stuff so I can avoid this from happening again since I believe this problem is due to my inexperience with this motor and the finer details of tuning it. Any input would be appreciated.....
