Had the same problem. Cannot believe a jerking start is good long term. My dealer, off TV said he put in a heavier clutch. Does rev higher when starting up but no jerking. No cost. I reccomend fixing.

They may be good and provide all good things but they don't take credit cards to purchase your cart.

In a nutshell, lower emissions.
The main benefits to using direct injection is that the amount of fuel and air can be perfectly released and then injected into the cylinder according to the engine load conditions. The electronics used in the system will calculate this information and constantly adjust. This type of controlled fuel injection results in a higher power output, greater fuel efficiency and much lower emissions.


Carburetor vs. Fuel Injection: Understanding the Pros and Cons - CarsDirect

Fuel injection isnt very important for us southerns but for the northern gold in cold temps the fi is a big plus. The fi will have better fuel mileage, less exhaust fumes, and more forgoving when using ethanol gas.

2013 clutch update
 

Finally we have a cart that starts and runs well. Put a note on the cart during annual tune up. They put on a high speed, heavy duty belt at their cost. That solved half the problem but the startup slippage continued. Called the dealer to complain and insisted on talking to the manager. He was very sympathetic and understanding. This is a big issue for them and one they have been struggling with. Yamaha wiped their hands of the problem and said Villages franchise puts on the high speed gear and modified the cart with big wheels. You changed it, the problem is yours. Villages took our cart back and put in a new clutch and possibly made other adjustments. The improvement is great and the problem resolved. The new cart does not startup as smoothly as our 2008 cart but it starts up OK and it runs much quieter. We love the lower noise level. This has to be an expensive headache for the Villages Yamaha dealer. Based on my experience they will solve the problem if you explain the problem and insist on a fix. I talked to a person who just bought a new cart and they have no problem. Maybe they are just eating the cost of putting on the new belt and clutch from the get go now that they know a soln.

The cost of the cart at the time of purchase might be at a higher rate to cover the cost they are eating later on after the purchase. Is the villages offering good prices on new carts?? A 2014 efi yamaha with the street package with lights, brakes lights, horn etc should be around 6000$