Hello, I bought a two stroke kit from boygofast on ebay. I replaced the carb with this one "49cc bicycle Motorized BIKE ENGINE - Racing Carburetor"
http://www.ebay.com/itm/49cc-bicycl...Cycling_Parts_Accessories&hash=item2c5cc6f3e7. I have never gotten it running that well. It will run for a few minutes (or seconds). It seams to work best the first few times I start it then less and less. Although when I have the back wheel raised it will run a lot better. I have tried played with tunning the carb, checked the head gasket because I saw oil coming from the top head fin but I think that it was just a loose bolt. I got it running for a 3 or 4 mile run with the old carb once but never got that working again. When I try and get it started,it only fires once every sec or so. I looked at the spark plug it looked good but i don't know what i looking for. all when i opened the head shaft look good but again i don' know what i looking for.
I'm not 100% that i hooked up the carb correctly. There are 5 inlets on this carb. 1 small on top near air filter - 2 med sized in the middle of the carb - 1 small on the bottom - 1 large in front near motor. I took it apart and tried to figure it out. I hooked it up with the fuel tank to large one on the front and the small one on the bottom to the small one on the top, I believe this one is overfill/draining. The 2 in the middle i believe are just vents I attached tubbing with open ends so that rain would not get into the carb. There are 3 adjustable screws. One on the bottom i believe to be a drain valve i have it closed all the way, one on the rear (IDK what this is just have it at 1 full turn out but have tried to play with it a little half turn each direction), and an idle screw. I have the needle set to to second from the top.
http://www.ebay.com/itm/49cc-bicycl...Cycling_Parts_Accessories&hash=item2c5cc6f3e7. I have never gotten it running that well. It will run for a few minutes (or seconds). It seams to work best the first few times I start it then less and less. Although when I have the back wheel raised it will run a lot better. I have tried played with tunning the carb, checked the head gasket because I saw oil coming from the top head fin but I think that it was just a loose bolt. I got it running for a 3 or 4 mile run with the old carb once but never got that working again. When I try and get it started,it only fires once every sec or so. I looked at the spark plug it looked good but i don't know what i looking for. all when i opened the head shaft look good but again i don' know what i looking for.
I'm not 100% that i hooked up the carb correctly. There are 5 inlets on this carb. 1 small on top near air filter - 2 med sized in the middle of the carb - 1 small on the bottom - 1 large in front near motor. I took it apart and tried to figure it out. I hooked it up with the fuel tank to large one on the front and the small one on the bottom to the small one on the top, I believe this one is overfill/draining. The 2 in the middle i believe are just vents I attached tubbing with open ends so that rain would not get into the carb. There are 3 adjustable screws. One on the bottom i believe to be a drain valve i have it closed all the way, one on the rear (IDK what this is just have it at 1 full turn out but have tried to play with it a little half turn each direction), and an idle screw. I have the needle set to to second from the top.
