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| Our Forums | | | | Motorized Bicycle General Discussion Topics on bicycle engine kits, help articles, repair and modifications for your motorized bicycles | @#$@#.....crap Discussion at Motorized Bicycle Engine Kit Forum in the Motorized Bicycle General Discussion forum. Originally Posted by Bikeguy Joe
check your plug once it's running to see where it's at air/fuel wise.
The angle ...  | | 
10-16-2008, 07:27 PM
| | Motorized Bicycle Member | | Join Date: Oct 2008 Location: Harrisonburg, VA
Posts: 42
| | Re: @#$@#.....crap Quote:
Originally Posted by Bikeguy Joe check your plug once it's running to see where it's at air/fuel wise.
The angle of these engines doesn't matter one bit, the carb float bowl does. | What would I be looking for when you say air/fuel.
and......float bowl? | 
10-16-2008, 07:59 PM
|  | Motorized Bicycle Elite Member | | Join Date: Sep 2008 Location: North Plainfield, NJ
Posts: 134
| | Re: @#$@#.....crap air/fuel ratio can be somewhat measured by the way your spark plug looks after a little bit of use. It helps in tuning your motor and keeping it from running lean will keep it from over heating and melting down. your plug should be anywhere from brown to an ashey grey type color. you may want to search the net for pictures of how a good running engines plug will look, as its hard to describe.
the float bowl is the bowl shaped thing at the bottom of your carb, just make sure you keep your carb as level as possible, no need to break out real level you can eyeball it and be just fine, whatever you do, don't mount it like your engine. | 
10-17-2008, 02:37 AM
|  | Moderator | | Join Date: Mar 2008 Location: Cuk Ṣon, AZ
Posts: 5,807
| | Re: @#$@#.....crap Here is a link on how to read spark plugs Spark Plugs | 
10-17-2008, 03:14 AM
|  | Motorized Bicycle Elite Member | | Join Date: Aug 2008
Posts: 147
| | Re: @#$@#.....crap Quote:
Originally Posted by cartisdm So.......I broke one of the flaps on the carburetor. I was trying to fit it to an elbow joint I made so that I can fit it under my frame. What do I do now? | i have an extra carb brand new never used let me know if you want it im using a walbro throw me a couple bucks +shipping and its yours make me an offer peace !!! | 
10-17-2008, 06:36 AM
|  | Motorized Bicycle Elite Member | | Join Date: May 2008
Posts: 291
| | Re: @#$@#.....crap Hi Cart,
I see that you are working away at the various problems you have encountered. Bravo! You have to be a little stubborn to reap the rewards sometimes. A certain amount of diligence not only helps get the job done but it sometimes saves your skin too.
I know you are eager to get riding but taking the time to do the job right may save you from a bad or dangerous experience later.
You are doing a good job of solving the problems this installation has presented you. Being a 2 stroke it will indeed run in the orientation you have selected as long as the carburetor is relatively level which you have solved.
The next hurdle that you will have to overcome will be mounting the engine well enough that it will withstand the vibration a single cylinder engine is known to create.
It is possible that hadn't finished tackling this problem when you took the pictures so please correct me if I am wrong. However if you were going to go with the rear mount as you have it in the pictures I'm afraid you will find yourself disappointed or possibly even hurt when it fails. It needs more support than that.
If I were presented with this particular challenge I would seriously consider finding a different bike for my motor. Bikes are so inexpensive especially if you have a local bike Co-op that it is often cheaper and more satisfying to find the right parts for the job. If you are really on a tight budget you can often reuse many parts on your current bike. You really only need a slightly bigger frame. With the right one the motor fits like a glove.
Congrats on your hard work so far. You can do it! | 
10-17-2008, 07:17 AM
|  | Motorized Bicycle Elite Member | | Join Date: Sep 2008 Location: North Plainfield, NJ
Posts: 134
| | Re: @#$@#.....crap Quote:
Originally Posted by skipu i have an extra carb brand new never used let me know if you want it im using a walbro throw me a couple bucks +shipping and its yours make me an offer peace !!! | would you mind showing us a picture of your walbro set up? is there a noticable diffrence in power or smoothness of the engine? | 
10-17-2008, 07:25 AM
|  | Motorized Bicycle Elite Member | | Join Date: Sep 2008 Location: North Plainfield, NJ
Posts: 134
| | Re: @#$@#.....crap as for mounting the motor like clotho said you must make absulutely certain that it is secured very tight. what you could do, is get your self 2 solid blocks of aluminum attach it to the current mounts with shorter screws then drill holes on the sides of the aluminum blocks you just installed in the correct position for your frame so you can attach the mounting brackets, it will require a lot of grinding to get it right. but it can be done with basic tools you can get an inexpensive belt (ryobi) sander for the grinding part, and hopefully you already have drill with some good bits. | 
10-17-2008, 04:58 PM
|  | Motorized Bicycle Elite Member | | Join Date: Aug 2008
Posts: 147
| | Re: @#$@#.....crap its almost done just waiting for tapered end mill and i have to figure out how to put pic i still didnt read the tutorial and i cant tonight i have to get to work on it right now (IM FIENDING MAN!) PEACE !! | 
10-17-2008, 04:59 PM
|  | LORD VADER Moderator | | Join Date: Jan 2008 Location: pampa texas
Posts: 2,364
| | Re: @#$@#.....crap Cartisdm
Now that I've teased you for breaking your carb if you can send me a drawing of what you need and make a intake make exactly of what you want out of pvc or some parts cut and glued together I could make you a nice one out of steel. looks like it needs to be a short run on the intake and a little offset to the left if your setting on the bike. let me know
not a good picture of my offset intake manifole but i think you will get the idea 
Norman
Last edited by Norman : 10-17-2008 at 05:11 PM.
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10-18-2008, 01:29 AM
|  | Motorized Bicycle Newbie | | Join Date: Aug 2008 Location: hinton okla.,USA
Posts: 14
| | Re: @#$@#.....crap that's a clean setup,Norm;what and whose brand motor do you use...Lisa | | Thread Tools | | | | Display Modes | Linear Mode |
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