wd45

[TIM WILBUR]

Help. MY wd45 is running very lean. I would ask for some info on setting carb. I have rebuild the carb and engine is lean,White spark plugs. carb is a marvel schebler. it has 2 mixing screws, one on top and one on bottem. any info on setting would be helpful.

 

[Anonymous-0]

Couple of things to come to mind right away. Are you certain the carb is good and clean? Could be the passages are not completly cleaned out or some dirt is hiding out in them. Float level is too low. Adjustment screws are out of their range. You need about 1-1/4 out on the idle and about the same on the highspeed. You turn the high speed in with engine at high idle until you miss and lose RPM then turn out until smooth then add another 1/4 turn. If I had to guess, the float level is too low.

 

[old]

How do you know it is running lean. If it has the power it should and runs ok then it is probably ok. As for the 2 screws the top one is the idle and the lower one is the main jet. Idle you set at about 1-1-1/2 turns out from the bottom. The main jet you start with 1-1/2 turns out and then go from there and you adjust for power with out black smoke. Some people will adjust them like this. Open the main jet up till you get black smoke then screw it back in just till the smoke stops.
Hobby farm

 

[Anonymous-0]

how far up on the threads does it show heat . theres a jet on some in the bowl passage way to the power jet . remove it or drill it bigger then you will have to use the needle in the bottom side to lean it up for it will go rich.