Yamaha motorcycle problems

SOURCE: 2007 yamaha fzr600 will not start

timing?

SOURCE: yamaha v max it cranks but wont start- is there a fuel pump inside of the tank, it seems like the tank is clogged.

there is a fuel filter out side the tank change it cause i guarantee it hasn't been changed since 2000. stock replacment will do, if its still not turning over the fuel sending unit is on the bottom of the tank and the tank has to be taken outta the bike to change it. make sure fuses are not popped before you do all this.