I was running a 64cc polini (ported),15mm bing (80j et and clip set to richest setting) with a techno boss. Initially after the port it ran great and even afterwards (hit 58mph but for whatever reason as of 5 days ago it hasn't been running well. This is my first time using a bing and quite honestly they're too finicky for me.
here's the issue after i open up the bike and after 10-15mins my take off (1/4 throttle it bogs like crazy to the point bike wants to turn off. i know that 801 is a small jet but because i've been running it prior and had no issues i thought it was fine. does the 1/4 throttle bog/wanting to turn off mean that it's running lean? i would prefer someone who runs a boss to let me know or anyone else who knows bings, creature elliott, etc..