| |
| Motorized Bicycle General Discussion Topics on bicycle engine kits, help articles, repair and modifications for your motorized bicycles |
Mpg is waayyy low
Discussion at Motorized Bicycle Engine Kit Forum in the Motorized Bicycle General Discussion forum. I'm running full tank 20:1 still on my first gallon and after riding about 30 miles I'm ...  | | 
09-05-2008, 03:11 AM
|  | Motorized Bicycle Member | | Join Date: Aug 2008 Location: Dallas,TX
Posts: 22
| |  Mpg is waayyy low
I'm running full tank 20:1 still on my first gallon and after riding about 30 miles I'm already at half tank. This must mean I'm averaging 60mpg which is half of what kit said (150). Is it because of the oil mix ratio that causes it to burn up so fast? Is it normal to kill your engine by choking it all the way and is it normal if the engine itself smokes(not exhaust smoke)? 
Last edited by fume555 : 09-05-2008 at 03:13 AM.
|
09-05-2008, 07:22 AM
|  | Master Bike Builder & Forum Sponsor | | Join Date: Dec 2007 Location: Duvall, WA PNW
Posts: 2,685
| |  Re: Mpg is waayyy low
I doubt 150 mpg, but 60 mpg does sound like you are leaking or sucking raw fuel.
Expect maybe about 80 mpg on a bolt on sprocket HT engine set-up.
I would start reading on tuning.
New plug and wire.
Needle on lean slot.
Smaller carb jet.
Look for carb leaks, defects. |
09-05-2008, 08:24 AM
|  | Moderator | | Join Date: Jan 2008 Location: Pampa, Texas
Posts: 1,715
| | Re: Mpg is waayyy low
So do you have a 1 gallon tank? Most of them I've seen are just 1/2 gallon tanks..............................
__________________ There are only 10 kinds of people in this world. Those that understand binary and those that don't............
Become a Forever Family, it'll change your life. http://www.galtx.org/ http://bdconner.com |
09-05-2008, 08:32 AM
| | Master Bike Builder & Forum Sponsor | | Join Date: Dec 2007 Location: Duvall, WA PNW
Posts: 2,685
| | Re: Mpg is waayyy low
Quote:
Originally Posted by Ilikeabikea  So do you have a 1 gallon tank? Most of them I've seen are just 1/2 gallon tanks.............................. | Interesting perspective!   |
09-05-2008, 09:23 AM
|  | Motorized Bicycle Elite Member | | Join Date: Jun 2008 Location: Longmont, CO
Posts: 1,597
| | Re: Mpg is waayyy low
Quote:
Originally Posted by Ilikeabikea So do you have a 1 gallon tank? Most of them I've seen are just 1/2 gallon tanks.............................. | what he said  |
09-05-2008, 09:27 AM
|  | Motorized Bicycle Elite Member | | Join Date: Jul 2008 Location: WEST FRANKFORT, IL
Posts: 245
| | Re: Mpg is waayyy low
if you only have a half gallon tank youd be at about 120 mpg about what i get and that aint bad.
__________________
MEASURE ONCE AND CUT TWICE.......WAIT A MINUTE
|
09-05-2008, 12:51 PM
| | Motorized Bicycle Member | | Join Date: Aug 2008 Location: Dallas,TX
Posts: 22
| | Re: Mpg is waayyy low
Whoops, I mean I got a half gallon tank Does that mean I'm getting 60mpg |
09-05-2008, 01:02 PM
| | Moderator | | Join Date: Jan 2008 Location: Pampa, Texas
Posts: 1,715
| | Re: Mpg is waayyy low
That means your getting 120 mpg..................
__________________ There are only 10 kinds of people in this world. Those that understand binary and those that don't............
Become a Forever Family, it'll change your life. http://www.galtx.org/ http://bdconner.com |
09-05-2008, 02:22 PM
|  | Godfather of Motorized Bicycles | | Join Date: Jan 2008 Location: Ashtabula county, Ohio
Posts: 7,121
| | Re: Mpg is waayyy low
New engines use more fuel, so do ones that are running too rich.
__________________
If it ain't broke, and you mess with it long enough, it will be. |
09-05-2008, 03:24 PM
| | Motorized Bicycle Member | | Join Date: Aug 2008 Location: Dallas,TX
Posts: 22
| | Re: Mpg is waayyy low
How many gallons/miles does it take to fully break my engine in? My top speed as of right now is about 30 mph. How much increase will there be once my 80cc is broken in? | | Thread Tools | | | | Display Modes |  Linear Mode | 
Posting Rules
| You may not post new threads You may not post replies You may not post attachments You may not edit your posts
HTML code is Off | | | All times are GMT -5. The time now is 07:58 PM. | |
| Sponsors
| | To be a sponsor Contact Us |  | | | |
Donations accepted!
| |
