jets are not adjustable, you have to change them. there are 2 mainjets and 2 pilots at about $4 each
I would start with 27.5 pilots and 280 mains for your setup.
Its got fmf now but those are getting pulled off polished and sold to the lowest bidder
you can send the fmfs to me for free, if you pay shipping. and put $800 in the box that way I can buy some Shearers. that should be the lowest bid, lol
have you checked the plug wires and caps? did you change anthing when this started to happen? carbs synced? float bowls on correct carbs? choke tube installed? slides in correctly? what does the spark look like when kicking over?
no but it could have caused the overheating that hurt something else.
it has to be getting cylinder pressure in the cooling system to shoot out coolant like that. pressure check the cooling system again.
If I ever do it again I will get cub cyls, only cost's a few more bucks then porting and boring.
cheeta cub and 4mil crank.
call Jeff @ FAST Racing he'll set you up right!!!!!