alright im new here (well been a member but have just been reading all the useful posts) i have had all kinds of problems with the mounting of theese chinese 80cc 2 strokes the first one i had bought onthe bike already 3 days old from a freind who broke the mounting bolts off in the motor i drilled and tapped and everything was dandy till the nex day of riding i look down and no bolts holding rear mount.Realized that i was 30 miles from home so tried to baby it back home but it cracked the crankase on the front mounting bolt.(probably my fault) So i just order a fresh kit to throw on the bike used rubber insulators for vibes and sick bike parts bolt kit and only tightened mounting bolts to a little under 10 ft/lbs it was running fine until i look down one of the rear bolts were gone(broke inside motor) this time i tried using a screw extractor and it too broke off inside. was pulling the crankcase apart to take to machine shop to have better mounts welded on but the crankcase kinda crumbled apart in my hands as i was taking it apart. Odered new crankcase and gaskets and have 2 complete kits for parts
My main questions for you all are:
How do you split crankcase without damaging it?
How tight do motor mounts need to be?
why do theese things snap bolts off in them so easily even grade 8?
also how long should i expect to ride on of theese jet black motors for before having anymore serious problems?
also will post pic of my ride when i get my iphone cable from my house
My main questions for you all are:
How do you split crankcase without damaging it?
How tight do motor mounts need to be?
why do theese things snap bolts off in them so easily even grade 8?
also how long should i expect to ride on of theese jet black motors for before having anymore serious problems?
also will post pic of my ride when i get my iphone cable from my house