"My two year old Mercruiser Re
"My two year old Mercruiser Remanufactured Mercarb 2 BBL flooded at the lake last night. Took the top off the carb to check and adjust float but decided to rebuild the carb even though it looked clean and I thought it was running good. I thoroughly soaked/cleaned all internal parts and cleaned every orifice I could find. Reassembled it w/a new needle and seat and mixture screw; other parts were good.
I picked up a new base gasket from a dealer a few days ago; it was not a thin type but about 1/4" thick. I asked why it was so thick and he responded it provides better fuel atomization.
I installed the carb w/thick gasket and set the mixture screw 1.75 turns out from the seat. The engine started immediately ran rough while it warmed up to operating temp. I wore rubber coated garden gloves due to the hot intake and T'stat tower. Using a 5/16" small socket to adjust the mixture screw, I was able to quickly adjust the mixture in the middle of the in/out stumble points.
Prior to using the thick gasket, adjusting the mixture was very touchy; finding the stumble limits was nearly impossible even on a new reman carb. The thick gasket did the trick."
"My two year old Mercruiser Remanufactured Mercarb 2 BBL flooded at the lake last night. Took the top off the carb to check and adjust float but decided to rebuild the carb even though it looked clean and I thought it was running good. I thoroughly soaked/cleaned all internal parts and cleaned every orifice I could find. Reassembled it w/a new needle and seat and mixture screw; other parts were good.
I picked up a new base gasket from a dealer a few days ago; it was not a thin type but about 1/4" thick. I asked why it was so thick and he responded it provides better fuel atomization.
I installed the carb w/thick gasket and set the mixture screw 1.75 turns out from the seat. The engine started immediately ran rough while it warmed up to operating temp. I wore rubber coated garden gloves due to the hot intake and T'stat tower. Using a 5/16" small socket to adjust the mixture screw, I was able to quickly adjust the mixture in the middle of the in/out stumble points.
Prior to using the thick gasket, adjusting the mixture was very touchy; finding the stumble limits was nearly impossible even on a new reman carb. The thick gasket did the trick."