hi all i am having trouble with my engine
the other day it was running like a treat and then it just cut out randomly, i got it home and taken spark plug out and checked for spark, there was no spark, so i though it was just the coil witch has been knocked off track with the flywheel so i relined it all and then i started getting spark after messing around with it
after that i started sticking it all back to try and start it, so yanking on it for ages and wondering what is going on...getting fuel to spark and thought i was just flooding it, so i remember seeing a little trick online "might be this forum site" to stick a little bit of 2 stoke oil down the spark hole to see if it is compression
so i stuck some oil in and tryed to fire it up, this was not on choke and it just popped like it would on choke when you pull and try and start so i gathered this is where the problem is
i had a new piston head and the piston ring is not very old so i just stuck new piston in and used the same piston ring due to not being very old and worn
now i have tones of compression but it dont sound right when i pulled on the starter making everything going round in the engine, its sounding like a tubo charger on a car when you up shift on gears,making that kind of whistle sound
i did manage to get it started with this strange sound yesterday and it did fire up but it was running at full revs and going nuts
i am stuck on ideas and possible things witch could be doing this, this is my second engine in this and dont want to get more parts or anything like that right now, these parts are not even 3 months old crank case and head, crank shaft is from original engine and its a stuffed crank they call it,
it was running fine before it just conked out on me the other day and never made this sound before sticking this new piston into it
any help would be amazing for me, i have writing it how i can remember how everything went