![]() ![]() ![]() ![]() Place some small pieces of paper in front of yourself on the table. The reason for this is simple the boring made the carb larger. The trade-off will be the loss of some low end to midrange power as well as throttle response. Then why would a snowmobiler want to bore a carb? When you bore a carb, you will usually get a little more horsepower on the top end (peak horsepower). At any given rpm, higher air velocities improve both throttle response and fuel atomization. A smaller carb will flow through the entire rpm range at a higher air velocity (speed). The reason they usually opt for the smaller carburetor is overall performance and fuel economy. This means they could run a slightly larger carburetor and make a little more power. When a snowmobile manufacturer produces a new sled they usually carburet the engine on the conservative side. ![]()
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