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View Full Version : 49cc bogging down when "recelerating"


smicsmit
06-06-2022, 09:54 AM
I have a 2017 Bintelli Sprint. The airbox was broken when I got it, and I bought a new carb that came with pod style air filter. I've gotten it running fairly well... Bought a set of main jets and experimented. It has an 88 main jet installed right now, which gives me the best performance, but the next size lower I have is an 80, and that's too lean.

With the 88, it accelerates well, and gives the best top speed out of the jets I have. The only issue is that if I let off the throttle to slow down (like to make a turn), then open the throttle back up, it bogs down slightly before catching up again. Does this indicate that Im too rich?

kz1000st
06-18-2022, 08:52 PM
Maybe the opposite. An air pod will lean out the flow. Look for a vacuum, leak, cracked intake manifold or a vacuum line cracked or off.