decreasing gas milage

[mitchedwards]

My agility 125 has just over 1000 miles on it.  I have noticed that my milage has went from 80-90 mpg down to the 70's.

I have not had any change to my riding habits.  Any idea what could be going on?

[OldGuy]

Could be the weather, especially if you do mostly short trips (choke on more of the time) or. although it's way to early mileage wise, the belt is worn.

[mitchedwards]

How could I tell if the belt is worn?

I have been wondering if I had a bad spark plug?  Sometime I feel lthe engine running rough on my commute (15 mile 1 way)

[ciocca1]

Funny you should ask about decreasing gas mileage I kind of noticed the same thing. I think  you are probably (and me too) riding full throttle more than you use to.

I have 1200km on my scooter and I tend to ride it full throttle more and more. It is just an underpowered vehicle and what felt fast at half throttle now feels slow at full 

JC

[mitchedwards]

I think part of it may be twisting the trottle more, but I also had been using cheap gas.  I've run 2 tanks of higher octane gas through it and my mileage went from 72MPG to 86 MPG.  I'm still keeping a eye on it and may bring it in for a tuneup to make sure everything is OK