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Its not too hard..............

Front pinion..........Adding one tooth or removing 1 tooth is like adding and subtracting 3 teeth from the rear sprocket in change

Larger pinion gets more topend speeds but adds engine lag if geared too much......

Smaller gets better bottomend acceleration and torque........

Rear sprocket...............Adjusting the rear sprocket 1 tooth at a time is necessary for finetuning gearing for current track conditions

Larger Sprocket adds torque ...

Smaller sprocket adds topend...

Its up to you to find a balance between clutch grab,,rider weight and track conditions.......Keeping a journal helps alot..........Good Luck
 

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cam2 said it well

basically more speed=less torque, more torque=less speed.

smaller rear sprocket will add speed and take away torque,
bigger rear sprocket will take away speed and add torque

bigger front sprocket will add speed and take away torque
smaller front sprocket will take away speed and add torque
 

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Divide the pinion teeth into the rear gear teeth, that will give your your ratio when you don't have a transmission. A 6 front and 70 rear would be 10 to 1 ratio. Meaning the engine has to turn 10 times to turn the rear wheel once.
 

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Discussion Starter · #5 ·
right because at the mo when i get to top end im geting lag on the engine like it wonts to give me more but it cant and then the bike wobballs out of control so i wont more torque right thats a importunt think at the mo i have 10 frunt and 75 back so i really wont if i did this right 12 frunt and 66 back right? ill get the hang of it can you allso reply to my othere thred thanks
 

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10/75 would be 7.5 to 1 thats pretty high already, and it's still popping wheelies. My C1 Came w/ 6/72 gears, to low for me, I went to 8/68 and back to 7/68 to get a more short track bike. If you get too high geared the wind and total weight can bogg the engine down at the top end.
 

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right because at the mo when i get to top end im geting lag on the engine like it wonts to give me more but it cant and then the bike wobballs out of control so i wont more torque right thats a importunt think at the mo i have 10 frunt and 75 back so i really wont if i did this right 12 frunt and 66 back right? ill get the hang of it can you allso reply to my othere thred thanks
Thats either reed flutter ,,improperly gapped sparkplug or mistuned carb............
 

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Are you sure the wobble is not a bent rim or way out of balance??
 

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The wheel wobble beleive it or not is that chassis flexing and a combo of maybe a lil too much air in the tires.......As the tires heat up the air expands,,,,,If you fill the tires up to the max then when theyre fully heated theyre filled too much.............
 

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Discussion Starter · #10 ·
i have no stearing dampner maybe thats it and well the carb it set to be just right for the 40cc polinis so its set right all i had todo wos get the idle right and the spark plug is the right one agen because thats what he useis on all the 40cc and 50cc and the reeds i have standerd reed block in and take a look at my spark plug pics then tell me what you think
 

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Discussion Starter · #12 ·
right i cant upload a pic theres something wrong with the site can i email it to one of you then you try pute it up if not you can just have a look at it and tell me if my spark plugs fine or not thanks
 

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Your posting photos have to be 512Kb or less. I have to take my 12Meg photos to Paint in Windows 7 and reduced the size down 1350 x 1050 pixels is close to 512Kb.
 

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Discussion Starter · #14 ·
no its not that its just it trys then the website crashis and sends me to the errea 500 page can not preform web site as thay are doing matanins
 

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Discussion Starter · #15 ·
this is my email adress ill send a pic so you can see what it looks like it wos half black then like a dry culer gold but like a powder sort of thing on the the arm on top of the sparkplug better if you sore the pics
 

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Discussion Starter · #17 ·
hi can 2 iv bean told you made a trike out of a cag and i wos wundering if you can tell me how maybe show me as i wont to make one for my girl friend as she wonts a quod but i know she will like this much much more so let me know thanks
The wheel wobble beleive it or not is that chassis flexing and a combo of maybe a lil too much air in the tires.......As the tires heat up the air expands,,,,,If you fill the tires up to the max then when theyre fully heated theyre filled too much.............
 

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hi can 2 iv bean told you made a trike out of a cag and i wos wundering if you can tell me how maybe show me as i wont to make one for my girl friend as she wonts a quod but i know she will like this much much more so let me know thanks
I went about building mine purely out of necessity for control because of the powerplant I stuck in it but you can make yours the way I really wanted to...........I have a ported to death,,mega powered 2 stroke chainsaw engine that started its life as a mere 3hp...Id say its closer to 9-10hp now and the bar in the back thats sticking out is really needed

Take a Cag frame,,razor electric or Honda MiniMoto and a differential chaindriven axle from a rascal electric invalid scooter and marry those together with a custom swingarm add a cag gas engine and youll be golden...........The differential axle takes the strain off that a straight axle exerts when turning around...This trike rides ,,glides and drifts a lil too







 

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Discussion Starter · #19 ·
wow i love that im going to try bild mine with the engine in the same places on a cag then just fit the rest on and then exstend the chain back and do you think a good cag engine like a 49cc with all the trimings will be good anuff ? ill pute slicks on it if i can
 

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wow i love that im going to try bild mine with the engine in the same places on a cag then just fit the rest on and then exstend the chain back and do you think a good cag engine like a 49cc with all the trimings will be good anuff ? ill pute slicks on it if i can
Thanks it was something I built in a day with the engine porting...

If your build is gonna have a straight axle the axle is gonna rob horsepower and making u-turns a very hoppy-bumpy experience for your g/f...
Putting slicks will just add to the strain especially if theyre as wide as Benefields trike slicks........If geared right it should be descent.....
 
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