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i took some sheet metal snips, cut it in the middle and took a screw driver and bent it down. works well enough.

well fawk, breaking in a new BBK on what was a good running bottom end that had been sitting, maybe a oil problem....cause that thing just locked up. less than a mile on it, had been breaking it in justing running thru the rpm ranges slow increase, drop it down slow increase, sounded good.......... then a horrible sound from the engine..... damn, hope its something stupid not wasted, but if it is i will just junk that scooter, its been a problem any way.

if you ran it without oil getting to the head i would seriously inspect the cam and lifters, and check the valve springs. of course i wont rule out a jacked cylinder but thats mainly splash lubed, so fingers crossed.

the factory carbs, even the blocked off ones are no problem, you can drill and easy out the bowl screws,(or a pair of vice grips) and the air fuel mix brass plug has been described above....

I dont buy into the whole it saves time just ordering an aftermarket carb bs....unless you got a shop in town...otherwise you wasted the 3 days waiting on it and the 30 or so dollars cause you didnt wanna spend 5 minutes on it... the factory ones once de-neutered are fine running carbs

now i have enough scooters that i have a small parts department in my garage of spares and keep 1 or 3 spare carbs half a dozen belts etc etc...but thats a another story 

catch up... we all pull the complete system off. no freaking rubber plug cause the system is pulled all the way off back to the fuel tank and the intake elbow. its gone maybe an air box vacuum line hooked to the pvc, one for the carb and one for the fuel pump or fuel cutoff valve depending on what you got...and 1 fuel line, everything else is stripped off, and there is more than one style. if you got 2 nipples in the intake elbow, the thing the carb is attached to use one nipple for the carb slide, and the other for the fuel system  (pump or fuel cut off) ..dont have to plug nothing, got only one, gonna have to use a splitter, 

cut the metal tube off at the head and stick a piece of metal between the head and the fitting flange and its done.

just because you watched a video doesn't mean we have any idea what you or he was talking about... frankly i have done over a dozen scooters and have no idea about what you speak, there are several nipples for vaccum lines depending on where this random video guy stopped, so for plugs i typically just thread a bolt into a rubber hose that fits the nipple. the real ones are sold at auto parts stores, and called vacuum caps.

what goes thru them is air, it injects fresh air into the hot exhaust, rich with oxygen to burn off and unburnt fuel and help complete combustion

ok, those simply use a set of craptastic shocks, frankly they wear out fast and dont got a lot of umph behind them, the rear shock from the venice, milano...

these little bastards 


and quit a few other rear shocks are with in a half inch to inch in length off those fronts, easy bolt on and it looks like a springer front end arrangement much like the classic vespas which used a coil spring type shock



but the chrome cover usually wont fit back on over the fatter shock, so a yellow or chrome one is a good choice, I have a la vie with that front end that needs to have it done in the next couple of days,

but they have enough power to keep the tire in contact with the road, and do max braking without bottoming out.

I typically only put one of the rear springs in front, havent tried two, one works good, might give it a try.

all my linhai 250 carbed scoots easily do 75+, and i usually buy them broken for under 300 dollars, and fix them cheap....of course i own a real motorcycle when i wanna go faster, cause scooter brakes don't exactly stop on a dime.