1970 4 hp floods out. update on carb rebuilt

[joejoe]

Hi, we rebuilt the carb and this thing takes like 30 pulls to get it started, once running we adjusted the slow and fast speed to the engine seemed to be running good. After the engine is ran it does not wont to restart unless you are willing to pull another 30 times. To begin with we had the low speed turned out 1 1/4 turns and the high speed turned out 1 turn then adjusted accordinly. we have tryed 2 different float settings one of them being dead leval when the carb is turned upside down and the other slightly over dead level. We had noted that while the engine is running and we shut it off are it dies fuel is flowing out the font of the carb by the choke. any ideals would be greatly appreciated. Thank-You

 

[byordy]

Re: 1970 4 hp floods out. update on carb rebuilt

Hi joejoe,<br />It's hard to say with so little detail, but the first thing I would check is the needle and seat. If the float is fully closing then the needle may not be seating properly in the seat. Possibly a worn needle or seat or both. It could also be the gasket between the seat and the carb body.<br />The float may also be sticking or hanging up if the pivot shaft is not properly centered in the carb bowl, or the small spring between the needle and the float is misaligned or missing (not all carbs have this spring).<br />I'm not sure about the float level, but make sure that it will fully close the needle valve when it's in the full "up" position. While holding the float in the full "up" or "full bowl" position you can blow through the fuel inlet to the carb to verify this; no air should pass through. Conversly with the float in the down or "empty bowl" position air should pass through. The float level is not as critical on carbs with adjustable jets as it is on fixed jet carbs.<br />Good Luck,<br />Bill........

 

[joejoe]

Re: 1970 4 hp floods out. update on carb rebuilt

Thx much that solved the problem of the fuel running out the front of the carb. Now it will start and run fine for a few seconds and then dies. do i have a lemom here or what? really confused here in Iowa