I'm only getting 50MPG Help!!!!!!!


New Member
Local time
8:44 AM
May 23, 2008
Albuquerque NM
Ok so what's going on!! (I have a DAX 70cc motor). I broke the motor in like I should the bike now has about 250+ miles on it. One of my thoughts is that I'm too big for the bike I'm 250lb at 6 foot 3, but to drop the MPG by less than half? sounds like a bit too much, and for the most part I peddel along with the bike as to not strain the motor. Any ideas would be great I realy want this to work, but so far a motorcycle would be as good on gas and alot faster (speed and time wise)
Sorry but I don't know what to say except bummer... I'm sure someone with some knowledge will come along and help. Sorry though it's not me. I hope you get your situation solved. 50 mpg sux.
Im no expert by any means but were talking about a 70 cc motor here, if its using too much fuel maybe its running way too rich? Can you smell fuel in the exaust, how does it sound, what color is the plug when looked at? It would seem a 70cc motor should pull your frame right along with no problemos. If it were me id be looking at the plug to see the color [color can tell you alot about whats going on in the combustion chamber] and then id suspect the carb is acting up.
The owner of a local bike shop got one of these kits. He assembled his carburetor components upside down. Unbelievably, it still ran but was burning very rich. If the carburetor was assembled correctly and the slot is properly seated over the idle screw then you might want to check your spark plug gap.

Driving habits:
I have a 49 cc motor. It CAN attain up 28mph with full throtle. I can cruise comfortably at 21 or 22 mph with hardly any throttle at all. I suspect it burns as much as 50% more fuel just to get an extra 3-6 mph. (Ilive in Central Florida where hills are very slight inclines).

Just some thoughts.
Sounds a bit high.
Dont use the original sparkplug. Look att the sparkplug, is it black?
Lower the needle one step and se how it performs. The "floater" inside the carb might be stuck aswell, but then it should perform quite bad.
I'll check all of this tonight when i get home thanks for the ideas I'll let you know what I find............Yote3
Yote,not to sound like an #$%^% but are you getting 50 miles per tank? Because a tank is a half a gallon. If you are then you're actually getting 100 miles per gallon