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I've had a (2016) Super 8 50R (Agility 50 engine) since it was new.  Now about 3400 miles on it now.  It has been tuned up recently (new plugs, valve adjustment, new air filter, oil/gear oil change, new battery).  Ever since new it starts immediately or will start immediately if I turn it off and turn it back on... also idling perfectly.   But if I've ridden the scooter and park it for a 1/2 hour or hour, then try to restart I have to give it throttle and then continue to give it a bit of throttle for 10-15 seconds to then have the bike idle properly else it will stall/not start.  Once I get it going it runs perfect.  This issue has existed since new.

Is this just one of those temperamental 50cc carb things or is this an obvious sign of a faulty device (petcock valve? mixture screw?).  I did drill the hole in the gas cap to see if this was causing a vapor lock, but afterwards did not notice a difference/issue not resolved.

I'm fine living with it, but if a simple fix, I might as well fix it.

There are videos about derestricting an Agility CDI by sawing into a corner until cutting through a copper wire... but the videos out there are a few years old.  Since the 2015 and newer US Super 8's are based on the Agility platform is the derestriction process the same?  Right now we can get about 28 mph on the scooter (has ~150 miles on it) and really would like to get it to 35 mph as that is the top speed limit in our town.  According to some of these videos simply sawing, thus derestricting, the CDI alone will drive a 5-10 mph bump.  Is this true?  Is this the right process?  If it works is there any potential downside to scooter durability/longevity?  Since the warranty is still 1 1/2 years if I go this route might it make sense to buy a Kymco CDI and try it on that in the event it doesn't work or the scooter ever needs warranty work I can swap it for the original?

Anyone else actually done this with success?  What was the result?

I'm averse to actually swapping out mechanical parts because I'm comfortable the Kymco engineers actually new what they were doing optimizing performance and durability with the mechanical parts.  I'm not obsessed with the ultimate 50cc top speed... just looking for about 7mph more to keep up with traffic.  Is this the solution?

I'm getting a new old stock 2015 Super 8 Wednesday which is based on the Agility platform (which is why I'm posting here).  I get that a CDI caps top speed to address various moped laws... But why are there 3 or 4 other physical "upgrades" to improve performance?  Said another way, will making carb and air intake adjustments to get more power damage durability long term?  There must be a reason Kymco has physical limiters beyond the CDI?  Curious if anyone knows the back story.

My experience with many OEM designs are the engineers at the factory usually do things for a reason.

I'm getting my 15 year old high school freshman a Super 8 50R for Christmas.  Just finalizing the deal with a dealership... unfortunately the closest [responsive] Kymco dealership is almost 40 miles away.  But for a very nominal price they will deliver.  Many of my son's friends have scooters and use them to get themselves around town and to various sports practices.  My son is very active with such school activities and it seems we're carting him around to 2-3 different activities every night.  I prefer him to have his own scooter rather than riding on the back of someone else's.  This is a a fairly large town but very flat and not a speed limit over 35 mph, so I figure this should work well.  My hidden agenda is my wife has been suggesting I give my son my Jeep when he turns 16 so she doesn't have to cart him around... but I really don't want to give up my Jeep, so this is a <$2K compromise that I think works for all and hopefully can address his basic transport needs into college.  After several weeks of research I finally landed on Kymco vs. spending a grand more for a Yamaha or Honda of similar styling (vs. Retro, which is not my son's style).  i imagine I'll be taking it out on occasion as well.

I have a bit of experience with vehicle maintenance so intend to be diligent with various fluid & filter changes.  I'm really hoping we don't get a dog so it won't need to go to a shop but once every few years.  Even the closest motorcycle repair place is quite a few miles away and driving there on the scooter would not be feasible.  It sounds like the new Super 8 design is just based on the Agility platform, which has stellar reviews, and now that Kymco has compressed prices of the Super 8 within $100 of the Agility I figure the premium for a bit more style is worth it.