Chain guide intake!!

[ekaplan1020]

So I am an idiot! I just got the motor put together and installed the chain guide for the exhaust when I noticed I did not install the chain guide for the intake (long piece) as it was hidden at the bottom of the shop manual! So...I am assuming I don't have to tear it all down again to install it in the crankcase,but I wanted to check with you guys to see if there's an easier way that will save me hours of work please let me know.

Ethan