Bike is not responsive and responds when I'm going uphill ?? I'm using an aftermarket CNC aluminum throttle though

Jerbyrd666

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Apr 6, 2020
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Ok my bike starts right up with the choke off and it will start picking up speed pretty quick, it's an 80cc 2 stroke off eBay. And I'm running a CNC aluminum throttle on it and it only has 2 holes for adjustment when you install the throttle cable. I've adjusted the clip on the needle from the bottom to the top and I get the best response from the top but it still kinda bogs out and then it will respond randomly ... And it responds best when I'm going uphill or when I kinda lean back on the bike any suggestions would be greatly appreciated thank you
 

DAMIEN1307

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And it responds best when I'm going uphill or when I kinda lean back on the bike any suggestions would be greatly appreciated thank you
If your running a stock NT carby and you have the needle clip at the very top, i would be willing to bet that your bogging is because its still running a little rich...The NTs come stock with a #70 jet...Try either a #68 or #65 jet instead...I think rejetting should take care of that problem very nicely...DAMIEN
 

Chainlube

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If your running a stock NT carby and you have the needle clip at the very top, i would be willing to bet that your bogging is because its still running a little rich...The NTs come stock with a #70 jet...Try either a #68 or #65 jet instead...I think rejetting should take care of that problem very nicely...DAMIEN
It'll be leaning out if the clip is at the top.
 

Chainlube

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Just needs to ride it around of some flat ground for awhile until the rings seat, then he should be fine.
 

Jerbyrd666

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Apr 6, 2020
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If your running a stock NT carby and you have the needle clip at the very top, i would be willing to bet that your bogging is because its still running a little rich...The NTs come stock with a #70 jet...Try either a #68 or #65 jet instead...I think rejetting should take care of that problem very nicely...DAMIEN
Ok right on thanks man I have just been riding it around more and it seems to be getting better
Also I just remembered that the cylinder also has open transfer ports if that makes a difference which I'm guessing it does ⁷
 

Jerbyrd666

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Apr 6, 2020
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Here's a pic of the cylinder it's got too it's a little different and idk if I need a windowed piston or anything else thanks again guys for all the good advice
 

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