The rectangle on the flywheel is actually shortly after tdc, so it could basically be the spark indicator, right ?
There is a large screw on the flywheel cover, which i can remove and turn the engine by hand. Its right in the middle of the crank axle(?) holding the flywheel and theres a small groove on the axle pointing the tdc, thats what i figured out atleast.
There was a little bit of rust on the frame where the battery (-) connects, so that could cause some interference.
I did try with another spark plug, and that one had better visible spark on it.
Yes, the wire is the same that was on the other engine, since its connected to the bike itself. So yes, it is the same wire that was also outside thru winter, but bad grounding could be the issue aswell.
I did smell gas from the exhaust port when the engine was cranking, since there is no exhaust pipe at the moment connected to the bike.
Unfortunately i dont have compression tester.
My dad also helped me with building the engine, mostly i did the job and asked whenever i wasn't certain of something.
Unfortunately he's at work for the next week so i have to manage on my own, and rely on the help of the internet.
One more question considering the timing possibilities, there are some markings on the camshaft axle itself pointing up, down, left and right. So 4 markings 90 degree from eachother. There are also 2 marks on the camshaft gear itself opposite from eachother, now i don't know which of these are what markings or if the markings on the camshaft even mean anything since there are 4 of them. Anyone have any idea about these markings ?
What happens if i mix up compression and exhaust stroke ? does the engine suck from exhaust port and blow out from intake ? Right now its sucking from intake port, there isn't that strong of a blow on the exhaust port, but i can still feel it puffing out air that smells like gas.
Also i can't run the starter with the start button since the solenoid has gone bad, so i have to physically hold the positive terminal wire and the starter wire together for the engine to crank.