Hello all
George from Maine. Getting chilly here.
I have a 4 stroke 49cc engine ( no idea on the brand, bought of eBay a few years back) on a beach cruiser type bike. Ran great, but this year would not run right. Cleaned carb etc. no luck. I did some research and found that the stoke carbs don’t last. So I bought a manifold and a clamp on NT style 2-stroke carb. (It’s Chinese) The bike at least works now. But it has a bog when trying to accelerate hard from idle. Will actually die out if the throttle is held open. Feather it and it is ok. I know it’s only 49cc but it seems lacking power and crispness. I’m sure I need to reject. Probably a bigger jet? Running lean? What size jets for these carbs? Best place to get jets?
Also after reviving the bike up the throttle hangs. Takes a good few seconds for the engine to come back down to idle. Thoughts?
Looking to just get it running reliably and best that I can.
Thank you all for the help.
I’ll try to post pics to show you what I’m working with.
George from Maine. Getting chilly here.
I have a 4 stroke 49cc engine ( no idea on the brand, bought of eBay a few years back) on a beach cruiser type bike. Ran great, but this year would not run right. Cleaned carb etc. no luck. I did some research and found that the stoke carbs don’t last. So I bought a manifold and a clamp on NT style 2-stroke carb. (It’s Chinese) The bike at least works now. But it has a bog when trying to accelerate hard from idle. Will actually die out if the throttle is held open. Feather it and it is ok. I know it’s only 49cc but it seems lacking power and crispness. I’m sure I need to reject. Probably a bigger jet? Running lean? What size jets for these carbs? Best place to get jets?
Also after reviving the bike up the throttle hangs. Takes a good few seconds for the engine to come back down to idle. Thoughts?
Looking to just get it running reliably and best that I can.
Thank you all for the help.
I’ll try to post pics to show you what I’m working with.
