OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions on Other Engines Sanli chonda engine

Ok, sounds good, do your checks.
Remember, in the cold start position it will cough, splutter, putt etc as the fuel mixture is overly rich and is used as a starting aid only. Once started the throttle should be backed off to disengage choke yet still maintain maximum governed RPM, that what the screw underneath the "choke actuation arm" is for. Just as the governor control hits it it stops resisting the governor and only choke control is engaged from that point onwards with no effect on engine speed. There is no mixture setting on your carby and the small metal adjustment screw on the front is simply an altitutude adjustment for the idle circuit only and will have little effect on idle and no noticable effect at full throttle.
Yes, the butterfly in the carby controls the speed control yet the smallest amount of movement will increase/decrease RPM's significantly. The governors function is to slow down the engines RPM's, the large spring at the bottom, which is not visible in any of your photos, is responible for pulling on the governor arm to increase RPM, so its a bit of a tug of war until a nice equilibrium is reached and a steady RPM is acheived. Maladjustment of the spring and/or governor arm-to-shaft setting can have dire "hunting" results and as such i don't recommend playing around with those settings too much.