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4 Stroke Bogging

If your 49cc or 150cc 4-stroke is bogging at mid-range or topping out at 1/2 speed, follow the steps below to isolate the problem:


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1/2 way is the needle jet. Take it out and set the clip down one. That should fix if.
This just happened to my 49cc. I’m going to try some carb cleaner and check the fuel filter. Could also be a bad load of gas. I’ll let you know how I progress.

2 stroke  adly bullseye 49cc       idles fine but any acceleration the engine bogs and scoot dies out.  it did sit for about 4 months so I assume something with carburation but I am not a mechanic.  I need an easy fix.

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