Originally Posted by Valleyrider
Agree!!! Everytime I "Assume" that the seal will work, the lips get ripped off with the first few revolutions of the crank. Trans seals don't do much better. Replace the seals and don't look back.
Not sure why you would have to replace the carb....
If the crank seals are not leaking or damaged in any way replacing them is pointless. Pressure testing the crankcase will show whether the seals are leaking or not, and will save time and expense which might not be required.
Contrary to popular belief carbs which have been unused for some while may need to be replaced, if very fine internal passages are blocked, and the blockages cannot be removed by something like ultrasonic cleaning.