The crankshaft and crankcase on the golf cart are two of the most vital components in making the engine run. The Yamaha Crankshaft Seal for the Clutch side is just as important. These seals are known for blowing out of place when they get old. A sign that you may need to replace the crankshaft or check the overall compression is that new seals blow out. We had customers make it a week before they had to replace it again. If that is your case, there is something else amiss. The crankcase pressure depends on the seals. If one blows out, the pressure will drop, and the fuel system can no longer do its job. The fuel pump relies on this pressure to work correctly.This golf cart seal is one of many. If this is a known issue for you, great, we are glad you found what you need. However, if you are taking a stab in the dart to try and fix a problem based on a suggestion, call Buggies Unlimited and ask about a Yamaha rebuild kit.