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Hey Tom. I was thinking of getting a side car. How difficult was it to install? Any cutting of plastic? What was cost of install? What is make and model of your car? Can it be removed easy, or is it a real pain to un hook and re-attach it? Thanks.

Does the rubber diaphragm have a tear in it? Diaphragm and slide are the same part.

Welcome back old friend. Your rubber diaphragm located just under the carb top/cap has a pin hole (or worse) hole in it. Easy fix, can do it your self. The spring will pop out, don't lose it. Then run a few cans of carb cleaner through it. My 07 had set for about 2 years when I bought it. Started, but would not idle. Idle jet was clogged. After running it through a few tanks of gas with cleaners, it cleared right up. Good luck, and make sure you put spring and needle back in correctly. A slight smear of grease on outer edge of diaphragm will keep it in side recessed area of carb that the rubber lip go's down inside of top of carb. Do this so you can put cap back on without worrying about crimping the rubber if it pops out of carb top when putting cap back on.

You will spend $ for about 1/2 second faster 0-60 time. A waist of $. Your motor will spin faster RPM's, get worse MPG etc. If you use their belt it will plow up after about 1000 miles. It is shorter and narrower than stock Kymco belt. Stay stock, Don't make the mistake I and others have made.

Google (daylong cycle saddles). Not cheap but made to your specs. Have owned 3, never will use anything else.

If you have a pin hole leak in the carb diaphragm, it will suck air and not go very fast. The bike is old, it has never been changed, take my word on this. Order a new one, pop off the carb top under plastic cap-under the seat. 3 screws or 4 (don't remember), and lid lifts off. Beware not to lose spring. Put needle jet and plastic piece back in, in correct order with spring in same position it was in when you took it apart. Really very easy to do. You may need to smear a little grease on the lip of the new diaphragm to make it stay down inside the recessed area before placing spring with top-cap back on, but once you push lip in groove of top of carb you will know if you need the grease or not. Also, adjust the valves. They tend to loosen up over time/miles. Loose valves = a slow bike that sucks gas. Good luck. 

I unplugged my under seat light after about the 3rd time my battery went dead. You can close seat, pull up on it to make sure it is all the way down and locked, and a latch can/will still let loose on one side, and the light will come on and kill the battery. Carry an LED flash light and unplug light. Not worth it.

Look for a diaphragm (rubber that is) in the fuel injection system. If there is one then that is the issue probably. New gases destroy them. A pin hole leak will suck to much air and make the bike run very lean.