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Old 08-30-2008, 11:21 AM
Nikopolis Nikopolis is offline
Motorized Bicycle Newbie
Join Date: Jul 2008
Posts: 1
Cool my second bike

Hello everyone,
My name is Nick and I have built my second bike using the 80cc kits.
My first was a Columbia I purchased on line... and it was ok but a little short for my body length.
I love my new one as it's a pre ww2 AMF Roadmaster.
I took the old fake tank and made a real one with fiberglass which looks and works great.
I would appreciate someone telling me the truth and facts about the claimed 150 mpg... as I don't feel I'm getting that. Can I fine adjust the carb or anything to get the best mpg. I also live in a hilly area and I realize this can affect that as well. Anyway thanks for any and all help. Nick

Last edited by Nikopolis; 08-30-2008 at 11:24 AM. Reason: typos
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Old 08-30-2008, 02:33 PM
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deacon deacon is offline
minor bike philosopher
Join Date: Jan 2008
Location: north carolina
Posts: 8,121
Default Re: my second bike

Not much you can do with the carb to my knowledge. I think some of the guys have rejetted it that might help. Other wise there is no adjustment just for fuel efficiency.

Im sure others know a lot more than me and might be able to help
My posts have entertainment value only. A bike ain't yours till it has your blood on it. Then it owns you.

Last edited by deacon; 08-30-2008 at 02:35 PM.
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Old 08-30-2008, 06:57 PM
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Dave31 Dave31 is offline
Super Moderator
Join Date: Mar 2008
Location: Old Pueblo,Arizona
Posts: 11,118
Default Re: my second bike

Welcome to the forum, glad you joined us

I get anywhere from 120-135 mpg...Alot of it has to do with your size and weight of your bike and terrain.

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Old 08-30-2008, 10:15 PM
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ralex999 ralex999 is offline
Motorized Bicycle Newbie
Join Date: Aug 2008
Posts: 14
Default Re: my second bike

Hi There Nick. Welcome to the forum. The easiest way I have found to get 150 miles per gallon is to find a reaaaaaaaallllllllllllllllly high mountain, anywhere in the Colorado Rocky Mountains with an altitude of about Ten thousand feet will do. Take the bike directly over the edge. Do not take the road down (and do not pass go and collect $200) but dive directly over the edge. This is the only way I know of to guarantee a hundred and fifty miles per gallon. It also helps if you are 90 pounds and made in Taiwan. Usually, a large man with a spare intertube around his waste, peddling to start the bike from stops and coasting down hill once in awhile can get between a 100 to 125 miles to a gallon. Keep in mind that most tanks out there are about a half gallon so 50 to 60 miles is the normal for fill ups. But considering that hunk of metal we call a SUV and about a hundred dollars to fill the tank, I can live with 50 or so miles to a tank when it only cost about a buck and half to "fill her up". Happy motoring and don't forget to duck.....
The Chinese make them, but it takes an American to build them better....
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Old 08-31-2008, 02:19 PM
LordMaximo LordMaximo is offline
Motorized Bicycle Senior Member
Join Date: Aug 2008
Location: High Plains Desert, Roy UT
Posts: 87
Default Re: my second bike

A parchute is recommended for cliff jumping with the

If you have a bike with gears, you can average substantial mileage. But with only a direct drive to your rear sprocket, not as much as you might wish you were getting. I would suggest going to a jack shaft and redirecting the drive to a geared assembly, this will definately inhence your mileage. Good luck, Maximo 8-)

Building the beast is just as fun as riding one.
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