I got kiddo and I a father and son project. Picked up for 500 he already had fresh top end with receipt for boring etc, new chain and sprocket and supposedly rebuilt carb, new starteter and battery. Carb was jacked put together all wrong pilot needle above cable plate no shim etc. Well I fixed and used a sled guy rebuild off ebay and didn't run right. Thought maybe bad kit now tried All Balls and no change. Have to choke but starts right up then idles fine with choke off. When first start can Rev up seems OK. But as soon as gets a Lil warm from 1/4 all the way to 3/4 throttle it just bogs and bellows smoke. It won't move hardly at all. Plug is always wet but not flooding enough to fill case. I'm at a loss is carb shot though about upgrading to flat slide. I took exhaust off to see piston gap in rings wasn't there so that's good lol. I unplugged black wire from cdi no change. I unplugged reverse override no change. Adjusted throttle every which way cause know need freeplay. Adjusted choke all over with no change. Tested compression which only got 120 which seems low but mechanic buddy said the cheapy $20 one I have typically reads low. Have put different floats and lever in and Adjusted from level to down and no change.. But this thing idles great and seems to kick in around 3/4 again I'm lost.