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this is a 4 stroke motor, im gonna try to put it on my 69 fox spoiler
do the 4 stroke motors have the problem with running lean also?
Of course they do....When I had a dyno in my basement it took 3 hours to find out there is a tab in the floatbowl that holds the float high so the fuel just dribbles past the float needle...............

If you do the float restrictor mod and tune the carb richer you can eliminate the pop...........



Theres mods to make your stock carb perform way better...Theres an air/fuel adjustment screw next to the idle screw...stock factory setting is 2 full turns out....You can richen it or lean it out up to 1 full turn in either direction if you have to adjust for conditions

Theres a c-clip on the mainjet needle,,factory setting for the chinese is dead middle on the 3rd notch...You may have to go to the 4th notch to get rid of any off idle stumble....

You basically want your bike to start-up and rev like this bike..........

 

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Discussion Starter · #5 ·
Great Cam2 im very glad you had time to answer, and cant tell you enough how much i appreciate the pics and descriptions. you basically make it moron proof for me. thanks again man im gonna try it all.
 

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Great Cam2 im very glad you had time to answer, and cant tell you enough how much i appreciate the pics and descriptions. you basically make it moron proof for me. thanks again man im gonna try it all.
No problem...let me know if you want to know how to modify the atomizer tube.....................
 

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Discussion Starter · #7 ·
hey CAM2, can you look at this carb for me and tell me if it would fit on my cat eye pocketbike, and also a quad i have laying around? also its only $10 and the place is only 7 miles away so i can pick up and save on shipping.

also if this carb would work how come its so cheap is it not as good as the stock carb that cost me $28 with a walbro rebuild kit for another $8-9
 

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Discussion Starter · #8 ·
No problem...let me know if you want to know how to modify the atomizer tube.....................
of course i want to know :p he he he yes keep it coming, anything you know that i can do to a cat eye or just to the motors in general please let me know. and the pics are awesome.
 

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Discussion Starter · #9 ·
hey CAM2, can you look at this carb for me and tell me if it would fit on my cat eye pocketbike, and also a quad i have laying around? also its only $10 and the place is only 7 miles away so i can pick up and save on shipping.

also if this carb would work how come its so cheap is it not as good as the stock carb that cost me $28 with a walbro rebuild kit for another $8-9
not sure if im allowed to quote myself but there it is. I forgot the link to the carb i was asking about here it is. i hope i dont get in trouble for it.

http://www.buyatvsonline.com/two-st...r-chinese-pocket-bikes-pb-carb-02-p-9497.html

this place is so close to home it makes parts affordable
 

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That carb is for a Cag reed port engine, it's a 12mm carb and your stock one is 15mm. Not going to help get more power, don't know if it will run right on the piston port engine.
 

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Discussion Starter · #11 ·
That carb is for a Cag reed port engine, it's a 12mm carb and your stock one is 15mm. Not going to help get more power, don't know if it will run right on the piston port engine.
ahhh i see, i had no idea. thats why i love these forums, any other time i would have probably ordered it without checking just because it was in the pocketbike section and the price was very low. now speaking of 12 and 15mm am i able to go larger than 15mm and it have a positive effect on the motor or am i only able to use a 15mm carb?
 
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