Could you be going up hill? Just kidding.

The trans is probably in different gears. Lower gear = more engine braking, increased engine speed, quicker stopping. Higher gear = less engine braking, decreased engine speed, less slowing.

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2007 Suzuki Vinson 500 4X4
2007 Toro 6.5hp
2006 BMW X5 4.4 ltr (his)
2001 BMW X5 4.4 ltr (hers)
1994 Honda XR650L
1984 Honda XR80

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Benjamin Franklin