Originally Posted by
KyoshoRed
You need to heat it with a heat gun. The sleeves are tapered at the top so when its cold its getting stuck at TDC. Make sure you dont leave it stuck in that position because the taper is what determines your compression therefore determines the lifespan of the motor also. Once you get it going always make sure you rotate the flywheel to the spot where the flywheel feels loose(BDC). Also if you have never broke in a engine make sure you watch a video or have someone that has done it help you. Pretty good video is
http://www.youtube.com/watch?v=kZ5BsceGVbo
ya know , I know Ryan personally and think he is a great ambassador for our awesome hobby buuuuutt wth mister?
I think he is forgetting a VERY IMPORTANT part of the break in process , you must preheat your engine guys at least to 170° , rule of thumb , if you gotta loosen the glow plug the engine isn't preheated enough , use a quality fuel with a castor bsed oil pkg such as byrons gen2 race blend pkg , do not "blip" the throttle during break in , keep temps around 210°-230° range and do not over rev . when cooling for heat cycling of parts leave piston out of the pinch zone and break in will go great