starting problems when hot

[levonskinator]

i just rebuilt my 400, starts up cold no problem but when it gets hot the electric starter will not start it. I was able to pop start it but i almost killed the battery trying to start it. Any ideas?

[miles Machine]

valve adj.

[aDviSol2y]

does it have oil in it?

[dirtman91386]

+2 on valve adjustment