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sounds like you have a vacuum leak, not much to remove and block off, really won't gain you anything

use some kind of aerosol carb cleaner, with engine running, spray a mist around the vacuum lines, when the engine picks up speed, you have found your leak, also check for gasket leaks at base of carb and manifold

@devrongrimm welcome here!
First measures in this case should be:
-scoot on mainstand
-brakes pulled and released (stationary brake too)
-try to move rearwheel by hand
-rotates freely, YES/NO

-if NO your rear brakecylinder/disc or hand brake
needs to be revised

-if YES, take off all CVT covers (3) and check whether all moves there properly
-rear alu cover with inserted support bearing stucks sometimes and is hard to remove.

Okay, I'll do this and check the things you mentioned. I'll update once I've checked it.

great looking tires at great purchase and install prices! And the installer even comes to you!!

Sweet wheels.

There was a red one parked right behind this white one.
But nothing clever about his plate.
White ones at dusk, with all the running lights on look like a small parade!

Stig

Well, all mods were complete minus the oil cooler, turns out the oil pump doesn't have enough pressure to get the oil up and through the oil cooler and added filter.

Big bore kit was a tough one and it won't be at it's full potential until I find a bigger fuel injector that fits, the tough part is finding the right size fuel injector that also fits the intake manifold bracket. The Kymco Spade 150 has an 80cc/min fuel injector and according to my math the optimal size with the 175cc big bore kit will be 100-120cc/min flow rate. Finding one that low in the US is a challenge. Been testing a few and they either don't fit or are too high of flow for the ECU to compensate for. But, I am hitting 68 on flat ground and my top gear throttle response has definitely improved so I'll take it.