Looking to install a predator 212 motor and a new clutch for my mini bike who in south la (usc area) do honest work

I'm going to be upgrading my rod to a billet rod on my predator 212cc and I plan on installing it while the crankshaft is still in along with the rest of the engine I'm worried about my clearance and I don't know how to use Plastigage and remove the crankshaft and check the clearance with a plastigage is that a must or will I be fine, thanks for all the help!

It seems any time somethings going alright, it breaks. I got a torque converter and did everything I needed to get it to work. But I completely forgot that this thing can decide when to break the only thing I need to get home. Pushed it a couple miles back home, in hot and humid temps. Don't recommend.

Recently swapped in a predator ghost engine to my Baja doodle bug, as I was taking everything apart to set up the throttle cable. This little clip fell out of the throttle piece and I don’t know how it went inside it. What is it called and how do I reinstall it?

Figured id go ahead and finish this today since ill begin working on a 14cc gx160 head for my buddies 212 here soon.

i haven’t gotten this bike to ever run really good, and now it won’t start. it barely runs with throttle. i have a 160 main and 30 pilot in my mikuni tm 24mm flatlside. all my gasket are on right and intake and exhaust are tightly on. i have 22lb springs and 256 cam with billet rod, plug is gapped to .30 and flywheel is .40. Valve lash is set to .003 intake and .004 exhaust. does any one have any ideas what my bike just is such a pain to get tuned right?

I hit the button on my cheap ass umbrella one day and the top just shot off the handle 10 feet like a SAM. So i saved the spring. Wouldn't ya know it fits on a drum brake cable perfectly. Brakes return great now since it's much stiffer. The original spring was dog ass. Plus you get enough spring for life from one shitty umbrella. So always hoard random junk, you may use it one day lmao