thanks MercerAUST!!

i think i can get to 3 of the bolts without much problem, its the bolt under the highspeed needle valve that is has me puzzled. do i need to take off the needle valve to get to that?

to get the needle valve off i would need to take off the 2 screws the hold that one and they also hold the crankcase backplate as well? let me know if i have this wrong thanks