The Suzuki SV650 is a Japanese motorcycle that is popular with enthusiasts ranging from new riders to amateur racers. The SV650 has been produced since 1999 and was significantly restyled in 2003. The Suzuki Gladius, powered by the same V-twin engine, was introduced in 2009 to eventually replace the SV650. The SV650 remains a very popular bike due in large part to the relatively small size and low seat height, but also thanks to a potent engine that produces generous levels of torque. However, many riders still find the height of the SV650 problematic and wish to lower their motorcycles for a more comfortable riding experience.
Obtain a lower, aftermarket seat for your SV650. There are a few companies, including Suzuki, that offer a lower profile seat. This is the simplest way to give yourself a lower position, so that you can reach the ground and have more stability when riding.
Remove the staples from the seat and remove the upholstery, if you wish to modify the stock seat yourself.
Shave the foam off the seat with a utility knife or other cutting implement. Ensure that you remove a very thin, uniform layer of the foam, so that there is enough support remaining on the seat.
Reattach the upholstery to the seat and fasten it with staples on the bottom of the seat. Take the motorcycle for a test ride and determine if you have removed enough foam.
Raise the motorcycle with motorcycle stands or a hoist in order to remove the weight off the front and rear suspension.
Loosen the front fork triple tree bolts and fork clamps in order to adjust the fork height. Exact measurements are required, and both forks must be lowered by the same amount. Furthermore, make sure that the rear suspension is lowered by the same amount as the front to preserve the suspension balance intended by the engineers at Suzuki.
Tighten the bolts that hold the front forks according the torque values given in the shop manual for the Suzuki SV650. Recheck your measurements to be sure that you have lowered the front suspension by the same amount.
Obtain lowering links from a parts store for the rear suspension adjustment. Longer lowering links will reduce the height of the rear suspension; shorter links will raise the rear suspension height.
Replace the stock suspension links with the aftermarket links, being sure to re-torque the bolts to the values listed in the repair manual. Recheck the front and rear suspension measurements to be sure that you have lowered both suspensions equally.
If you are unsure about your mechanical ability, consult a professional in order to have advanced work done on your SV650. Consult the repair manual for the SV650 for torque values and procedures.
Always be sure to secure the motorcycle properly before adjusting the front or rear suspension height. This will minimise the chances of a tip-over and injury. If you are not comfortable performing advanced motorcycle mechanic procedures, strongly consider having a local motorcycle shop perform them for you.