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Post by camojeremy on Sept 28, 2013 8:08:21 GMT -5
You all can see my set up below, finally got my new BBK Running but when cold only with ether & help of Jumper Cables both and when warm with a touch throttle alone.... so what do I need to do to put the final touches on it... it also idles at 3k rpm without assistance of idle screw....
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Post by scootnwinn on Sept 28, 2013 9:42:01 GMT -5
Your idle jet is probably too big 3000 rpms for idle is twice what it should be. Is the free play on the throttle cable properly set? Should be about a 1/4" of play... Check the throttle cable first
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Post by camojeremy on Sept 28, 2013 10:38:40 GMT -5
The play is good. . . so I should reduce idle to maybe #32?
How do you properly set A/F... plug I'm use once got fouled up still has spark but cant see coloring... and do I set at idle or WOT. Best youtube tutorial you have?
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Post by alleyoop on Sept 28, 2013 11:58:30 GMT -5
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Post by camojeremy on Sept 30, 2013 7:43:34 GMT -5
Idk where to start. . . I can't get the thing to idle and it refuses to start up on its own. . . it needs ether and jumpstart.... for the 47mm does anyone know a great baseline to start playing with it... right now there is just too many varibles at play here.
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Post by JerryScript on Sept 30, 2013 8:00:29 GMT -5
I'm wondering if the advanced spark CDI is to blame? Is it adjustable, or just advanced? I would swap your stock CDI back in and see if it cold starts better with that.
Others with more experience may over-rule me on this, but isn't a 23mm carb huge for a 50cc, even with a BBK?
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Post by sailracer on Sept 30, 2013 8:27:36 GMT -5
Get rid of the 23mm carb. It's too big for a 50, I had one, went to an 18mm, and it makes all the difference in the world.They sell those things for special big valve ported heads.If you still have the original carb, try it out, you can always upjet it
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Post by camojeremy on Sept 30, 2013 8:38:39 GMT -5
No not adjustable just advanced. . . idk ill try it can't hurt I suppose....
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Post by camojeremy on Sept 30, 2013 8:40:19 GMT -5
Wondering if part if the problam is that I need a stronger battery... battery tests fine but when jumping it it will start with whatever carb or jets are on it at least for a second....
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..BAD TO THE BONE..
jet