there is no crank position sensor on the '85.
Last year on my late '88 245, when it was plagued with a no-start condition, I checked the 25-amp blade fuse with the continuity tester on my meter - it beeped fine. Days later, out of frustration, I put in a new fuse and it started right up! Turns out the fuse filament was intact but had high enough resistance to limit current flow! So check your fuse and fuse holder again, just to be sure.
Have you checked the fuel pump relay? That's a frequent no-start problem source.
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